Software & Operating Systems
🔒 Log in to trackWindows OS features
🔒 Log in to trackMicrosoft Windows (Windows 10, 2015; Windows 11, 2021) is a single-user, multitasking, GUI-based OS.
| Feature | Meaning |
|---|---|
| GUI | Windows, Icons, Menus, Pointer (WIMP) instead of typed commands |
| Multitasking | Many programs run concurrently (preemptive scheduling) |
| Plug and Play (PnP) | New hardware is detected and configured automatically |
| File Explorer (Windows Explorer) | File/folder management shell (Win+E) |
| Control Panel / Settings | System configuration (Settings app in Win 10/11) |
| Task Manager | Processes, performance, startup (Ctrl+Shift+Esc) |
| Recycle Bin | Deleted files held here; Shift+Delete skips it (permanent) |
| Device Manager | Lists/controls hardware and drivers |
| Disk Management | Partition, format drives; Disk Cleanup/Defragmenter utilities |
| Windows Defender | Built-in antivirus/firewall; Windows Update keeps patches current |
| Command Prompt / PowerShell | CLI interfaces for typed commands |
| User accounts | Administrator vs Standard; login password/PIN |
| Virtual desktops / Snap | Multiple desktops (Win+Ctrl+D); window snapping (Win+arrow) |
| OneDrive / BitLocker | Cloud sync; disk encryption (BitLocker in Pro editions) |
Accessories: Notepad (plain text), WordPad (rich text, removed in Win 11), Paint, Calculator, Snipping Tool.
What Windows is
Microsoft Windows is the world's most used desktop operating system: single-user, multitasking, GUI-based. Windows 10 arrived in 2015, Windows 11 in 2021. The desktop you see is the OS's graphical shell — behind it, the Windows kernel does the real work.
Feature table (each row is a one-mark question)
| Feature | Meaning |
|---|---|
| GUI | You point and click on Windows, Icons, Menus, Pointer (WIMP) instead of typing commands |
| Multitasking | Many programs run at once; the CPU switches between them so fast each seems continuous |
| Plug and Play (PnP) | Connect new hardware and Windows detects and configures it automatically — usually no manual driver hunt |
| File management | Files in folders, browsed in File Explorer |
| Recycle Bin | Deleted files land here first and can be restored; Shift+Delete skips it |
| User accounts | Separate login, password and personal folders per user |
The Windows toolbox
| Tool | Job |
|---|---|
| Task Manager | Shows running programs, 'not responding' apps, CPU/RAM use; start it with Ctrl+Shift+Esc |
| Control Panel / Settings | Change system settings — display, sound, users, network |
| Device Manager | Lists all installed hardware and its drivers; flags problems |
| File Explorer | Browse, copy, move, rename files and folders |
| Disk Cleanup | Deletes junk and temporary files |
| Disk Defragmenter | Reorganises scattered file pieces on hard disks |
Built-in accessories (know which does what)
- Notepad — plain text only: no bold, no pictures. Saves .txt.
- WordPad — light formatting (bold, fonts) in rich text; between Notepad and MS Word.
- Paint — simple drawing and image editing.
- Calculator, Snipping Tool (screenshots) — small single-purpose apps.
The mobile half of the story
- Android — owned and developed by Google; built on the Linux kernel; open source at its core (AOSP); runs on phones of many brands.
- iOS / iPadOS — Apple's mobile OS; closed source; runs only on Apple devices.
- Windows, macOS, Linux — the desktop trio; Android, iOS — the mobile duo.
Question types you will see
Each type: how to recognise it, the method step by step, and one question to try.
Windows feature identification (GUI, multitasking, PnP)
'The feature that auto-detects new hardware is', 'running many programs at once is called', 'WIMP stands for' — a feature name with four definitions.
Auto-detect + auto-configure hardware = Plug and Play.
Many programs at once = multitasking; WIMP = Windows, Icons, Menus, Pointer.
Windows = single-user multitasking GUI OS — a three-label line exams quote directly.
The Windows feature that automatically detects and configures a newly connected USB device is —
Show solutionHide solution
Plug and Play (PnP) — the OS identifies the device and loads a suitable driver without manual setup.
Windows tool ↔ purpose matching
'Which tool shows CPU/RAM usage or stuck programs?', 'where do you change settings?', 'which tool lists hardware and drivers?'
Processes and performance → Task Manager (Ctrl+Shift+Esc). Settings → Control Panel/Settings. Hardware + drivers → Device Manager. Files → File Explorer. Junk files → Disk Cleanup.
'Not responding' in the stem always points to Task Manager.
Device Manager flags driver problems with warning marks.
A program has stopped responding. Which Windows tool lets you end it forcibly?
Show solutionHide solution
Task Manager (Ctrl+Shift+Esc) — select the app and choose End Task. It also shows CPU, memory and disk usage.
Windows accessories: Notepad / WordPad / Paint
'Notepad saves files as…', 'which accessory draws pictures?', 'difference between Notepad and WordPad'.
Notepad = plain text (.txt), no formatting at all.
WordPad = basic rich-text formatting; MS Word = full formatting.
Paint = drawing; Snipping Tool = screenshots; Calculator = maths.
Which statement about Notepad is correct?
Show solutionHide solution
Notepad is a plain-text editor — it saves .txt files with no formatting (no bold, fonts or images). WordPad adds basic formatting.
Mobile and desktop OS facts (Android, iOS, Linux)
'Android is developed by…', 'Android is based on which kernel?', 'iOS runs on which devices?', 'which is open source?'
Android = Google, built on the Linux kernel, open source at its core, many brands.
iOS = Apple, closed source, only Apple hardware.
Desktop trio: Windows (Microsoft), macOS (Apple), Linux (open source, Linus Torvalds).
The Android mobile operating system is built on which kernel?
Show solutionHide solution
The Linux kernel — Android is Google's mobile OS layered over Linux; that is why it is often called 'Linux-based'.
Shortcuts that save time
Plug and Play means the OS auto-detects and auto-configures new hardware - no driver hunt. The phrase 'automatically detected' in a question = PnP.
Windows feature that configures a newly attached printer automatically?
Show solutionHide solution
Plug and Play.
Fastest route to Task Manager: Ctrl+Shift+Esc (direct). Ctrl+Alt+Del only opens the security menu first. 'Direct' is what SSC tests.
Shortcut that opens Task Manager directly?
Show solutionHide solution
Ctrl+Shift+Esc.
Mistakes to avoid
Where most students lose marks on this subtopic.
Believing Recycle Bin catches everything - Shift+Delete bypasses it, and flash-drive deletes often skip it too.
Confusing File Explorer (files) with Internet Explorer/Edge (browser).
Thinking Notepad saves rich formatting - Notepad is plain text only.
Quick revision
Read this the night before the exam.
Windows = single-user + multitasking + GUI (WIMP). Win10 2015, Win11 2021.
Plug and Play = auto-detect and configure new hardware.
Task Manager = processes and 'not responding'; Device Manager = hardware and drivers; Control Panel = settings.
Notepad = plain text; WordPad = formatted text; Paint = drawing.
Android = Google + Linux kernel; iOS = Apple only.
Practice: 16 questions
Sets of 10, mixed across the question types above. Every answer has a step-by-step explanation.
Topic test · 10 questions
Suggested time 4 min · wrong answers go to your mistake notebook automatically.