Foundational
Computer
Training

Before touching a keyboard, every student must understand why they are learning. The answers to these six questions build the motivation and context for everything that follows in the course.

The Motherboard is the main circuit board — every other component connects to it. Think of it as a city's road network. The CPU (Central Processing Unit) is the brain — it executes every instruction from every program. Speed is measured in GHz (gigahertz). More GHz means faster processing. The Power Supply Unit (PSU) converts mains electricity (240V AC in Nigeria) to the low-voltage DC that computer components need. Without the PSU, nothing runs.

RAM (Memory) is volatile — it holds data only while the computer is on. When you shut down, everything in RAM disappears. RAM is the computer's "working desk" — it holds everything you are currently working on. More RAM means more programs can run simultaneously without slowdown.

Storage (HDD or SSD) is permanent — data stays here even when the power goes off. Your files, programs, and the operating system all live in storage. It is the computer's "filing cabinet." The difference between HDD and SSD is that HDD uses spinning magnetic platters (slower, fragile, cheap) while SSD uses flash memory chips (faster, durable, more expensive).

Input devices send data into the computer. Output devices deliver processed results out of the computer. Some devices do both (e.g. a touchscreen both receives touch input and displays output). Knowing which is which helps you troubleshoot connections and understand data flow.

Not all connections use physical cables. Modern computers communicate wirelessly using radio signals. Understanding these helps you set up devices and troubleshoot connectivity issues.

Safely ejecting USB devices is not optional. A USB drive has a write buffer — data may still be in transit to the drive even after the copy progress bar finishes. Pulling it out without ejecting can corrupt the data being written. Always right-click the USB drive in File Explorer → "Eject," or click the USB icon in the system tray → "Safely Remove Hardware," before physically unplugging.

The Operating System (OS) is the most important software on a computer. It sits between the hardware and all applications — it manages CPU time, RAM allocation, storage access, and all devices, and provides the platform that every other program runs on. Without an OS, a computer is just expensive hardware doing nothing. Think of it as the manager of an office building — every worker (program) goes through the manager for resources; no worker touches the electricity or plumbing directly.

Windows organises all storage in a tree hierarchy. Everything starts from drives (C:, D:), which contain folders, which contain sub-folders, which contain files. The most common beginner mistake is saving a file and not knowing where it went — because they never understood where "Documents" lives in the tree. Standard path: This PC → Drive C: → Users → [Your Name] → Documents. Read this path in the address bar of File Explorer at all times.

File extensions identify the file type. .docx = Word document. .xlsx = Excel spreadsheet. .pdf = PDF document. .jpg/.png = image files. .mp4 = video. .exe = executable program. Windows may hide extensions by default — enable them: View → Show → File name extensions.

Batch renaming: Select all files → press F2 → type the new base name → press Enter. Windows automatically appends (1), (2), (3) etc. to each file. Essential for organising photos, scan batches, and downloaded documents.

Zip/Compress: Select files → right-click → "Send to" → "Compressed (zipped) folder." The zip reduces file sizes (sometimes 50–80% for text files) and combines many files into one — ideal for emailing multiple documents. To extract: right-click the .zip → "Extract All."

The Settings app (modern, simplified) and Control Panel (older, more detailed) are where you configure everything about Windows. Key settings: Display Resolution — always use "Recommended" for your monitor. Sound — configure default playback and microphone devices. Date & Time — enable "Set time automatically" and choose the correct time zone (West Africa Time, UTC+1 for Nigeria). An incorrect system clock breaks SSL certificates and software licences.

Bluetooth — Settings → Bluetooth & devices → toggle On to pair wireless headsets, mice, and keyboards. Once paired, devices reconnect automatically. Turn Bluetooth off when not in use to prevent unauthorised pairing and save battery. Wi-Fi — Settings → Network & Internet → Wi-Fi. Connect to networks, view saved connections, and use Forget to remove networks you no longer use. Enable Metered connection on limited data plans to stop Windows downloading large updates automatically.

User accounts: An Administrator can install software, change system settings, and access all files. A Standard User can use programs and save personal files but cannot install software or change system-wide settings. Always use a Standard account for daily work and the Administrator account only when installing or configuring. A strong password has 12+ characters, mixing uppercase, lowercase, numbers, and symbols — e.g. Vm@Lagos2024!

Managing programs correctly prevents your computer slowing down over time. There are three stages to every program's life on your PC:

Installing: Run the installer file (.exe or .msi). Always download software from the official website only — not third-party download sites which may bundle malware. During installation, read each screen and decline any optional bundled software or toolbars that are pre-ticked.

Updating: Keep software and drivers current. Settings → Windows Update ensures the OS has the latest security patches. For installed apps: open the program → Help → Check for Updates. Driver updates — for printers, graphics cards, and webcams — come from the hardware manufacturer's website or via Device Manager (right-click Start → Device Manager → right-click the device → Update driver).

Uninstalling properly: Never delete a program by dragging it to the Recycle Bin or deleting its folder — this leaves behind registry entries, configuration files, and startup entries that accumulate and slow Windows down. Always uninstall via: Settings → Apps → Installed Apps → find the program → Uninstall. This runs the program's own remover and cleans up all associated files.

Ctrl + Shift + Esc opens Task Manager instantly. When a program freezes, find it in the Processes tab → right-click → End Task. This closes the frozen program without restarting the entire computer.

The Performance tab shows real-time graphs. CPU at 100% means a program is overworking the processor — find it in the Processes tab sorted by CPU. RAM at 100% causes severe slowdown — close unnecessary programs. Disk at 100% often indicates Windows is indexing or updating — usually resolves itself.

The Command Line (also called the Terminal or Command Prompt) is a text-based interface for communicating with your computer. Instead of clicking icons and menus, you type instructions as text commands and the computer responds with text output.

This feels intimidating at first but is one of the most important skills for anyone serious about computers. Every technology career — web development, data analytics, networking, cybersecurity, system administration — uses the command line daily. It is faster than clicking for many tasks, can be automated and scripted, and gives you access to powerful system functions that have no graphical equivalent.

On Windows, the primary tools are Command Prompt (cmd) and PowerShell. On Mac and Linux it is the Terminal. In this course, we focus on Windows Command Prompt as the entry point.

There are three ways to open Command Prompt on Windows:

When it opens, you see a black window with a flashing cursor, showing something like: C:\Users\YourName> This is called the prompt. It tells you two things: the drive you are on (C:) and your current location in the folder tree (Users\YourName). Every command you type is run from this location.

The most essential skill in the command line is navigation — moving between folders (called "directories" in terminal language). These three commands cover 80% of all navigation you will ever do.

Troubleshooting is a structured thought process, not a panicked clicking of everything on screen. Professional IT staff follow the same mental framework every time, which is why they can solve problems that seem mysterious to others. By learning this framework, any student can resolve 70–80% of common computer problems on their own.

The core principle is isolate → test → resolve. First understand exactly what the problem is. Then identify what changed. Then test solutions from simplest to most complex, one at a time.

Device Manager shows every hardware component in the computer and its status. A yellow warning triangle (⚠️) next to a device means it has a driver problem — the software that lets Windows communicate with that hardware is missing, outdated, or corrupted. To open: right-click Start → Device Manager, or search "Device Manager" in the Start Menu. To fix a driver problem: right-click the flagged device → Update driver → Search automatically. If that fails: note the device name → visit the manufacturer's website → download the correct driver manually.

Most people dramatically underestimate how much of their working day involves typing. A data entry clerk, customer service agent, teacher, accountant, or executive will spend 2–6 hours per day typing. At 15 words per minute (WPM) — which is typical for a two-finger typist — typing a 1,000-word report takes over an hour. At 40 WPM (the professional minimum), the same report takes 25 minutes. At 70 WPM, it takes under 15 minutes. Over a year, the faster typist saves hundreds of hours.

More importantly, slow typing breaks your thinking. When you are hunting for each letter, your cognitive focus is on the keyboard, not on the content you are writing. Fast touch-typists keep their eyes on the screen — their thinking flows directly onto the page. This is why professional writers, programmers, and executives who handle large volumes of communication almost universally type with all ten fingers without looking.

Touch-typing means typing without looking at the keyboard, using all ten fingers, each assigned to specific keys. It feels difficult at first because you are unlearning old habits, but the learning curve is short. Most people reach 30 WPM within 2–3 weeks of consistent 20-minute daily practice.

The home row is the middle row of the keyboard: A S D F G H J K L ;. This is where your fingers rest when not typing. Your left hand covers A-S-D-F, your right hand covers J-K-L-;, and each thumb rests on the spacebar. The two raised bumps on the F and J keys are the tactile home markers — you can find home position without looking.

Each finger is responsible for specific keys. Your left index finger covers F, G, R, T, 4, 5, V, B. Your right index finger covers J, H, Y, U, 6, 7, N, M. Each finger stretches up and down from its home position to reach assigned keys, then returns. This is the mechanical foundation — once it becomes automatic through practice, your fingers find the right keys by muscle memory, not by sight.

The Home Ribbon contains tools used in every Word session. Font group: change face, size, colour, bold, italic, underline, highlight. Paragraph group: alignment, line spacing, bullets, numbering, indentation. Format Painter — the paintbrush icon — copies ALL formatting from selected text and applies it wherever you click next. Double-click Format Painter to keep it active for multiple targets; press Escape to release.

Find and Replace (Ctrl+H) is indispensable. If a client's name changed in a 50-page document, Find "Old Name" → Replace with "New Name" → Replace All fixes every occurrence instantly.

A Cover Page is a pre-designed first page with placeholders for title, subtitle, author, and date. Apply one from Insert → Cover Page. Using Word's built-in gallery instantly gives any report a polished, professional first impression.

A Page Break (Ctrl+Enter) forces the next content to start on a new page. This is fundamentally different from pressing Enter repeatedly to push content down. If you press Enter 30 times and later add content above it, your spacing shifts. A Page Break is an absolute anchor — content always starts at the top of the next page regardless of what is above it.

Headers and Footers display information automatically on every page — company name, document title, date, or page numbers — without typing it on each page. Double-click the top or bottom margin to enter header/footer editing mode. Press Escape to exit. Page Numbers: Insert → Page Number → choose position and format.

Tables organise information into rows and columns. Insert → Table → drag to define size. Key operations: Merge cells (select cells → Table Layout → Merge Cells) — used for headers spanning multiple columns. Shading — fills cells with colour for alternating rows or header highlighting. Borders — set line style, colour, and width for a professional or invisible grid appearance.

A Hyperlink links selected text to a URL. Select text → Insert → Hyperlink → paste URL. In exported PDFs, these links remain clickable. A Bookmark marks a specific location in the document — useful for navigation in long documents and for cross-references. A Cross-reference creates an auto-updating pointer — "See Table 3 on page 12" updates automatically when Table 3 moves.

When you insert an image, Word places it "inline with text" by default. For most layouts, change the Text Wrapping to "Square" or "Tight" so text flows around it. Do this via: select image → Picture Format tab → Text Wrapping → choose option.

SmartArt converts a bullet list into a professional graphic — org charts, process flows, cycle diagrams, pyramid charts. Insert → SmartArt → choose category and layout. Type text in the left pane. Word arranges it automatically. Organograms (hierarchical org charts) use the Hierarchy category in SmartArt.

Text Boxes are floating containers positioned anywhere on the page, independent of the text flow. Use for pull quotes, sidebars, and callouts. Drop Caps enlarge the first letter of a paragraph — the newspaper/magazine effect. Symbols inserts characters not on the keyboard: ©, ™, £, é, ñ, mathematical signs. Insert → Symbol → More Symbols.

Margins: Standard for Nigerian official documents is 2.54cm (1 inch) on all sides. Layout tab → Margins → Custom Margins. Orientation: Portrait (tall, default) for letters and reports. Landscape (wide) for tables, timelines, and wide charts. Columns divide the page into newspaper-style columns. Layout → Columns → Two or Three.

A Table of Contents is generated automatically from your document's Heading styles. This is why using proper Heading 1, Heading 2 styles — rather than just making text large and bold — matters so much. References → Table of Contents → select a style. To update after changes: click the TOC → Update Table. A Watermark is faint background text — "CONFIDENTIAL" or "DRAFT." Design → Watermark. Page Borders add a decorative frame — used for certificates, invitations, and formal letters. Design → Page Borders.

F7 opens Spell Check — it scans for spelling (red underline) and grammar (blue underline) errors. It does NOT catch correctly spelled words used incorrectly ("their/there"). Always proofread manually after spell check. Thesaurus (Shift+F7 or Review → Thesaurus) suggests synonyms to avoid word repetition in formal writing.

Track Changes — the most important collaboration feature in Word. Review → Track Changes → enable. Every edit made by any reviewer is recorded with their name and timestamp. The document owner can Accept or Reject each change individually or all at once. This is the standard workflow for professional document review in law firms, NGOs, government agencies, and corporations.

Comments add sticky-note annotations linked to specific text without modifying the document. Select text → New Comment → type note. The author replies and resolves comments when acted upon. Understanding file extensions: .docx preserves all Word features and is for editable versions. .pdf locks layout permanently and looks identical on every device — use for final sharing and submission.

PDF (Portable Document Format) is the universal standard for sharing final documents. A PDF looks identical on every device and printer regardless of which software created it, and it cannot be accidentally edited by the recipient. In Nigeria, virtually every official document exchange — JAMB forms, NYSC registrations, job applications, government submissions, contracts, invoices — uses PDF.

PDF24 is a completely free, full-featured PDF toolbox available at pdf24.org. You can use it directly in your web browser with no account or subscription required — simply visit the website and use any tool. It also offers a free desktop application for offline use. PDF24 contains over 25 tools covering everything you will ever need to do with PDF files, all in one place.

This matters in the workplace because you will regularly receive PDFs that need to be combined, compressed for emailing, converted, or signed — and paid tools like Adobe Acrobat are expensive. PDF24 gives you professional PDF capabilities at zero cost.

For situations where you need to work without internet access (power cuts, data saving), PDF24 also offers a free desktop application for Windows. Download from pdf24.org → "Desktop App." Once installed, all the same tools are available offline with no file size limits and no uploads to the internet — important for confidential documents. The desktop version also includes a PDF printer that appears in your Windows printer list — you can "print to PDF" from any program, converting anything printable into a PDF instantly.

Mail Merge solves a real workplace problem: you have one letter to send to 200 people, but each copy must include the recipient's name, address, and personalised details. Without Mail Merge, you type each letter individually — 200 separate documents. With Mail Merge, you create one master document and one Excel spreadsheet, and Word generates all 200 personalised letters automatically in seconds.

Practical use cases: invitation letters for events, salary letters, employee certificates, customer invoices, bulk email personalisation, NYSC posting letters, school report cards.

Step 1 — Prepare your Excel spreadsheet: Create a spreadsheet with a header row (column titles). No merged cells, no blank rows, no special characters in column headers. Column headers become your merge field names — use simple names like Full_Name, Email, City.

Step 2 — Open your letter in Word: Write the full standard letter, leaving gaps where personalised details go.

Step 3 — Start Mail Merge: Mailings tab → Start Mail Merge → Letters (or Labels, or Envelopes).

Step 4 — Connect to your data source: Mailings → Select Recipients → Use an Existing List → browse to your Excel file → select the sheet.

Step 5 — Insert merge fields: Place your cursor where a name should appear → Mailings → Insert Merge Field → select Full_Name. A placeholder «Full_Name» appears. Repeat for all variable fields.

Step 6 — Preview: Mailings → Preview Results → click the arrows to check each recipient's letter looks correct.

Step 7 — Complete the merge: Mailings → Finish & Merge → choose: Print Documents (send directly to printer) or Edit Individual Documents (creates one long Word file with all letters separated by page breaks — useful for review).

A template (.dotx file) is a pre-designed document blueprint. When you create a new document from a template, Word creates a copy — the original template remains unchanged. Every organisation should have branded templates so that all letters, reports, and proposals look consistent.

Every new Word document is already based on a template — the blank Normal.dotx template. The default font is Calibri 11pt, the margins are 2.54cm — these all come from Normal.dotx. You can and should customise this for your organisation's brand.

Creating your own template: Design your document exactly as you want it — add your logo to the header, set the fonts and colours, create and apply all necessary styles. Then: File → Save As → change file type to Word Template (.dotx) → save to your templates folder. From then on: File → New → Personal → select your template to open a fresh branded copy.

A Style is a saved bundle of formatting — font, size, colour, line spacing, paragraph spacing — given a name. When you apply the style "Heading 1" to text, it applies all those formatting settings simultaneously and consistently.

Why Styles matter beyond appearance: Styles create document structure that Word understands. Documents formatted with proper Heading 1/2/3 styles automatically generate a Table of Contents, enable the Navigation Pane to work, and make accessibility features function correctly. Documents where headings are just "large bold text" — without actual styles — cannot generate a TOC automatically and have no navigable structure.

Modifying a style: Right-click the style name in the Styles panel (Home tab, Styles group) → Modify → change any formatting → check "Automatically update" to cascade changes to all text using that style throughout the document. This is how you change all headings in a 40-page report with one action.

Creating a new style: Format text exactly as you want → right-click the formatted text → Styles → Save Selection as New Quick Style → give it a name. Now this style appears in your panel and can be applied document-wide.

Style Sets (Design tab → Document Formatting) apply a complete family of coordinated styles — heading fonts, body fonts, spacing — with one click. Use these as a starting point, then customise individual styles to match your brand.

Table Styles: Click anywhere in a table → Table Design tab → choose a style from the gallery. The style applies professional colours, borders, and header/footer row formatting instantly. Check "Banded Rows" for alternating-colour rows (improves readability). "Header Row" and "Total Row" options format the first and last rows distinctively.

Converting Text to a Table: If you have data separated by tabs, commas, or other delimiters, Word can convert it to a proper table automatically. Select the text → Insert → Table → Convert Text to Table → choose the separator → OK. Conversely, select a table → Table Layout → Convert to Text to extract data back to plain text.

Sorting a table: Click in any column → Table Layout → Sort. Choose the column to sort by, select Ascending or Descending, and whether the table has a header row. You can sort by up to three levels simultaneously (sort by Department, then by Surname, then by Date).

Calculations in Word tables: Word tables can perform basic calculations without Excel. Click in a cell → Table Layout → Formula. The formula =SUM(ABOVE) totals all numbers above the current cell. =SUM(LEFT) totals numbers to the left. =AVERAGE(ABOVE), =COUNT(ABOVE), and =MAX(ABOVE) also work. Note: unlike Excel, these do not auto-update when data changes — right-click the result → Update Field to refresh.

Nested tables: A table within a table cell — useful for complex form layouts and structured data that needs inner formatting. Click inside a cell → Insert → Table. Use sparingly as they increase document complexity significantly.

Excel is built around a grid of cells, each identified by a column letter and row number: A1, B5, C12. This cell reference is the foundation of all formulas. A Worksheet is one grid (one tab at the bottom). A Workbook is the entire Excel file, which can contain many worksheets — like having multiple pages in one notebook. The Name Box (top-left, shows current cell address) lets you navigate by typing a cell reference and pressing Enter. The Formula Bar shows the actual content of the active cell — if the cell displays "₦1,500" but was entered as a formula, the Formula Bar reveals the formula.

Merge & Centre: Combines multiple cells into one and centres text inside — used for headings spanning multiple columns. Select cells → Home → Merge & Centre. Freeze Panes: Locks rows/columns so they stay visible while scrolling. Click the cell below and to the right of what you want frozen → View → Freeze Panes. Essential for tables with hundreds of rows — headers always stay visible. Text Wrapping: Makes text wrap inside the cell (row height increases to show all text) instead of overflowing into adjacent cells. Home → Wrap Text.

The same number means different things in different formats. Format cells via right-click → Format Cells → Number tab, or use the quick buttons on the Home ribbon. Every formula starts with = — without it, Excel treats the entry as plain text. Always use cell references in formulas (=A1+B1) rather than hard values (=500+300) — if source data changes, formulas recalculate automatically.

Sorting rearranges all rows based on one column's values. Data → Sort. You can sort by multiple levels. Filtering temporarily hides rows that don't match criteria — Data → Filter → click dropdown arrows on headers. Remove Duplicates (Data → Remove Duplicates) scans selected columns and deletes rows where the combination already appeared — essential before any data analysis. Data Validation: restricts what values can be entered, creating dropdown lists for consistent data entry. Data → Data Validation → Allow: List → Source: type options separated by commas.

Conditional Formatting automatically changes cell appearance based on values — making patterns visible instantly. Highlight Cells Rules: colour cells above/below a threshold. Data Bars: horizontal bars inside cells proportional to values. Colour Scales: gradient heatmap (green=high, red=low). Home → Conditional Formatting.

Charts: Select data first → Insert → recommended chart types. Pie charts for proportions of a whole. Bar/Column for category comparisons. Line for trends over time. Always add a chart title and label your axes. Sheet Protection (Review → Protect Sheet) locks cells from editing. Unlock specific input cells first: Format Cells → Protection → uncheck Locked. Print Area: select cells → Page Layout → Print Area → Set Print Area, so only the relevant data prints.

Themes apply complete pre-designed packages — fonts, colours, backgrounds, and layouts simultaneously. Slide Master (View → Slide Master) is the behind-the-scenes template controlling every slide. Changes to the Slide Master automatically appear on all slides — add your company logo once here and it appears on all 30 slides without editing each one individually.

Transitions are visual effects when moving between slides. Applied from the Transitions tab. Use one consistent subtle effect (Fade or Push) throughout. Mixing 10 different dramatic transitions is unprofessional. Advance Slide Timing: uncheck "On Mouse Click" and set seconds for automatic advancing — used for kiosk displays and pre-timed presentations.

Animations apply to individual elements within a slide. Three categories: Entrance effects — how elements appear (Fly In, Fade, Zoom). Emphasis effects — what happens to visible elements (Pulse, Spin). Exit effects — how elements leave (Fly Out, Fade). The Animation Pane (Animations → Animation Pane) shows the sequence, timing, and triggers of all animations on the current slide — reorder and adjust from here.

Insert → Video embeds video files directly into slides. Trim the video to show only the relevant portion. The Recording Ribbon records your voice narration and webcam as you present — Export → Create a Video converts the presentation to an MP4 for submission or training materials.

Presenter View is the most important feature most beginners don't know exists. When presenting with two screens (laptop + projector), your laptop shows Presenter View — your speaker notes, the next slide preview, elapsed time timer. The audience sees only the current slide. This means your complete script can be in the Notes panel without the audience ever knowing. Enable via: Slide Show tab → check "Use Presenter View."

A browser is the program that connects to the internet and renders websites (Google Chrome, Mozilla Firefox, Microsoft Edge, Safari). A search engine is a website you visit using a browser (Google, Bing, DuckDuckGo). The browser is the vehicle; the search engine is a destination. You can use Google's search engine in any browser — they are not the same thing.

Tabs vs. Windows: A tab is a new page within the same browser window. A window is a completely separate browser instance. Use Ctrl+T for a new tab. Use Ctrl+N for a new window. Use Ctrl+W to close the current tab. Use Ctrl+Shift+T to reopen the last closed tab — extremely useful when you accidentally close something. To open a link in a new tab without leaving your current page: right-click the link → Open link in new tab, or hold Ctrl while clicking the link.

Bookmarks (Ctrl+D) save a webpage address for one-click future access. Organise bookmarks into folders. The Bookmarks Bar (Ctrl+Shift+B) shows your most-used sites as quick-access buttons below the address bar.

History is a log of every webpage you have visited. Access it with Ctrl+H or Menu → History. You can search, revisit, or delete individual entries. To delete all history: Ctrl+Shift+Delete → select time range → choose what to clear → Clear data. On a shared or public computer, always clear your history, cookies, and saved passwords before leaving — otherwise the next user can see every site you visited and potentially access your accounts.

Incognito / Private mode (Ctrl+Shift+N in Chrome and Edge): opens a session that does not save history, cookies, or form data after you close the window. What it does protect: history from being saved on that device. What it does NOT protect: your internet provider can still see your activity; websites can still track you; your employer or school network can still monitor traffic. Use incognito for private browsing on shared devices, or when you need to open a second account on the same site without logging out of the first.

The HTTPS padlock in the address bar means the connection is encrypted — third parties cannot intercept passwords or card numbers you submit. HTTP (without the S) sends data in plain text. Never enter personal information on an HTTP site. Phishing is the most common cyber attack — emails or websites impersonating trusted sources (your bank, JAMB, Google) to steal credentials. Warning signs: sender email doesn't match the organisation (support@g00gle.com is not Google), urgent threatening language ("Account suspended in 24 hours!"), links that go to a different URL than the text shows, poor spelling and grammar. Strong passwords: 12+ characters, mixed case, numbers, symbols, unique per account. Enable 2FA/MFA on email, banking, and social media — even if someone steals your password, they cannot access your account without your phone.

Data privacy is no longer just a technical topic — it is a legal and professional obligation. Nigeria enacted the Nigeria Data Protection Act (NDPA) 2023, replacing and strengthening the earlier NDPR. Any employee handling information about customers, clients, patients, or staff at a company that processes personal data has legal obligations under this law. Non-compliance can result in fines and criminal penalties for the organisation.

Understanding data privacy makes you a more trustworthy and employable professional. Employers in banking, healthcare, telecoms, e-commerce, NGOs, and government actively look for staff who understand why data protection matters.

Personal data is any information that identifies or can be used to identify a living person. This is broader than most people realise — it includes not just the obvious (ID numbers, addresses, phone numbers) but also combinations of information that together identify someone.

Most consumers use Gmail and Google tools in their personal lives. But the overwhelming majority of formal employers in Nigeria and globally — banks, oil companies, telecoms, NGOs, government agencies, multinationals, and large SMEs — run on Microsoft 365. This means Microsoft Outlook for email and calendar, and Microsoft Teams for internal communication and meetings.

A graduate who only knows Gmail will need to relearn their core communication tools on their first week of employment. Microsoft 365 is consistently the first tool new employees are given access to. Knowing Outlook and Teams before you start work signals a level of readiness that sets you apart.

The good news: the concepts are the same as Gmail and Zoom — email, calendar, video calls, file sharing. The interface is different. This lesson focuses on what is different about the Microsoft tools and the features that make them more powerful in a professional corporate context.

Outlook is more than email — it combines email, calendar, contacts, tasks, and notes in one application. This integration is what makes it the dominant professional tool. You can receive an email about a meeting and add it to your calendar without switching applications. You can flag an email as a task with a due date. You can see someone's calendar availability before sending a meeting invite.

Microsoft Teams is a hub for teamwork that combines chat, video meetings, file storage, and app integration in one platform. In most corporate organisations in 2026, Teams has replaced email for internal day-to-day communication — you email clients and external partners, but you use Teams to talk to your colleagues.

The key mental model: Email = postal service (formal, asynchronous, external). Teams = office floor conversation (informal, instant, internal). Learning when to use which prevents you from cluttering everyone's email inbox with internal quick questions and missing urgent messages because they were buried in email.

Gmail mastery: TO: main recipient expected to act. CC (Carbon Copy): people who need to know but not act — all recipients see who is CC'd. BCC (Blind Carbon Copy): recipients hidden from all others — use when emailing a large group to protect everyone's privacy. Attachments: keep under 10MB total; compress multiple files into one zip; always mention the attachment in the email body. Professional Signature: Settings (gear icon) → See all settings → General → Signature → create and assign.

Google Drive stores your files on Google's servers — accessible from any internet-connected device. 15GB free per Google account. Files are automatically backed up. Sharing: Instead of emailing copies (which create conflicting versions), share a link to the single file. Share settings: "Viewer" (read only), "Commenter" (can add comments), "Editor" (full access). Share via: right-click file → Share → type email address or generate a link.

Suggesting Mode in Google Docs (equivalent to Track Changes in Word): click the pencil icon dropdown (top-right) → switch from "Editing" to "Suggesting." Every change you make becomes a suggestion the owner must accept or reject. This is the correct mode when reviewing a document someone else owns.

Google Docs, Sheets, and Slides are web-based equivalents of Word, Excel, and PowerPoint. Multiple people edit simultaneously — you see each other's cursor in real time. Auto-saves every change. No manual save required. Every change has a Version History (File → Version History → See version history) — you can restore any previous version.

Google Forms creates surveys, quizzes, and data collection forms with any shareable link. Forms → Responses tab → Link to Sheets: every new response becomes a new row in a connected spreadsheet automatically. Download as CSV: Responses → three dots → Download .csv for analysis in Excel.

Zoom & Google Meet professional etiquette: Mute yourself when not speaking — your background noise disrupts everyone. Use Background Blur for professional appearance regardless of your physical environment. Raise Hand (Reactions → Raise Hand) to signal you want to speak without interrupting. Chat panel for sharing links and asking questions without audio interruption. Breakout Rooms: host creates small groups for discussion within a larger meeting. Always test your audio and video before a meeting — not during it.

In 2026, employers do not wait to receive CVs — they actively search for candidates. A hiring manager who receives your CV will almost certainly search your name on LinkedIn before or after reading it. If they find nothing, that itself makes an impression. If they find a well-crafted profile that matches and reinforces your CV, you have already differentiated yourself from candidates who only sent a PDF.

More importantly, LinkedIn is the world's largest professional network with over 1 billion members. Jobs posted on LinkedIn often receive applications from thousands of candidates. But jobs filled through referrals and networking — which LinkedIn facilitates — are often never publicly posted at all. Studies consistently show that 70–80% of jobs are filled through networking before or without a public listing. Building a LinkedIn presence is not just about job hunting — it is about becoming findable by opportunities.

This is not optional for someone serious about a professional career. It costs nothing. It takes 2 hours to set up properly. And it works continuously in the background while you sleep.

Open to Work: Click your profile photo → "Open to" → "Finding a new job" → add your preferred job titles, location, and employment type (full-time, part-time, remote, on-site) → you can share this with all LinkedIn members (a green "Open to Work" banner appears on your photo) or only with recruiters. Choose "Recruiters only" if you are currently employed and job searching discreetly.

Job Alerts: After searching for a job type on LinkedIn, click the "Set alert" toggle. LinkedIn will email you new matching jobs daily or weekly — you do not need to check manually. Set alerts for 3–5 different job title variations to maximise coverage.

Click "Jobs" in the top navigation bar. Use the search bar with job title keywords and location. Then use the filters to narrow results:

Sending connection requests to people you have never met is normal and expected on LinkedIn — it is not rude. The platform is specifically designed for this. When sending a connection request, always add a personalised note (the "Add a note" option when connecting). Example: "Hi [Name], I recently completed computer training and am building my professional network in the tech space. I noticed you work at [Company] in [Role] and would love to connect and learn about your experience. Thank you."

Who to connect with: classmates, instructors, alumni from your school, people who work at companies you want to join, professionals in your field who post useful content. After connecting, engage with their posts — thoughtful comments are more valuable than just liking. This keeps you visible in their network without being intrusive.

LinkedIn Premium: The free plan is sufficient for job searching. LinkedIn Premium (paid) offers InMail messages to people you are not connected to and advanced applicant insights. It is not necessary until you are actively searching and want every advantage.

Alan Turing's Imitation Game (1950) proposed the question "Can machines think?" — defining AI research for decades. AI Winters were periods of reduced funding (1970s and late 1980s) when early AI overpromised and underdelivered. The Modern AI Boom (2010s–present) was triggered by three convergences: massive internet-scale datasets, powerful GPU computing originally built for gaming, and deep learning breakthroughs.

How LLMs work: Large Language Models (ChatGPT, Claude, Gemini) are trained on vast text to predict the next word in a sequence. Through doing this with billions of parameters and trillions of words, they develop general capabilities — writing, reasoning, coding, translation, summarisation. They do not "think" — they complete patterns statistically. Understanding this explains both their power (they are very good pattern completers) and their weaknesses (they can confidently complete incorrect patterns).

The capstone assessment is your final demonstration that you can independently apply the skills from this course to real-world tasks. It consists of four questions — each targeting a specific set of tools and concepts covered during the 28-day programme. You must complete all four questions and submit according to the general instructions below.

Instruction: Using Google Forms, create a single form containing all 25 questions below, organised into three sections exactly as shown. When complete, set the form sharing to "Anyone with the link can fill in the form" and submit the link.

Task title: Tech in Real Life: Applying Digital Skills in the Modern Workplace

Create a minimum 30-slide presentation on Google Slides demonstrating how hardware, software, operating systems, Microsoft Office tools, online collaboration tools, and generative AI are used in real-life work environments. Keep each slide concise — use bullet points, visuals, or short text. Every slide must have a title and subheading.

Complete all seven tasks below using Microsoft Excel or Google Sheets. Save the file using your full name. Submit via Gmail (attachment) or share the Google Sheets link set to "Anyone with the link can view."

Accurately recreate a provided document in Microsoft Word, then add navigation elements, convert to PDF, upload to Google Drive, and submit the link for grading.