Unit 6: Rapid Revision & MCQs
Chapter 32: Computer Abbreviations
Hinglish Explanation: SSC me full forms direct one-liner questions ke form me aate hain, isliye important abbreviations yaad karna high-scoring area hai.
| Abbreviation | Full form |
|---|---|
| CPU | Central Processing Unit |
| RAM | Random Access Memory |
| ROM | Read Only Memory |
| ALU | Arithmetic Logic Unit |
| GUI | Graphical User Interface |
| URL | Uniform Resource Locator |
| HTTP | HyperText Transfer Protocol |
| HTML | HyperText Markup Language |
| USB | Universal Serial Bus |
| LAN | Local Area Network |
Chapter 33: Keyboard Shortcuts
English Definition: Keyboard shortcuts are key combinations that perform common actions quickly.
Hinglish Explanation: Shortcuts se computer operations fast hote hain aur SSC computer awareness me direct questions bhi aate hain.
| Shortcut | Action |
|---|---|
| Ctrl+C | Copy |
| Ctrl+X | Cut |
| Ctrl+V | Paste |
| Ctrl+Z | Undo |
| Ctrl+S | Save |
| Ctrl+P | |
| Ctrl+F | Find |
| Alt+Tab | Switch apps |
| Ctrl+Shift+Esc | Task Manager |
Rapid Revision — SSC Computer One-Liners
These are designed for last-day and last-hour revision.
1. CPU is commonly called the brain of a computer.
2. ALU performs arithmetic and logical operations.
3. RAM is volatile memory.
4. ROM is non-volatile memory.
5. 1 byte = 8 bits.
6. Binary number system has base 2.
7. Hexadecimal has base 16.
8. BIOS/UEFI helps initialize hardware during boot.
9. Windows is an operating system, not a programming language.
10. Linux is an operating-system family/kernel ecosystem widely used on servers.
11. Keyboard is an input device; Monitor is an output device.
12. Touchscreen can provide both input and output.
13. OCR converts printed characters into machine-readable text.
14. MICR is associated with magnetic-ink character recognition.
15. IPv4 uses 32-bit addresses; IPv6 uses 128-bit addresses.
16. TCP is connection-oriented and reliable.
17. UDP is connectionless and has lower overhead.
18. SMTP is used for sending email. IMAP/POP3 for receiving.
19. SaaS provides ready-to-use software as a service.
20. CIA stands for Confidentiality, Integrity and Availability.
21. Ransomware commonly encrypts or blocks access to data.
22. Phishing targets users with deceptive messages.
23. Excel formulas generally begin with =.
24. Algorithm is a finite sequence of steps to solve a problem.
25. Flowchart diamond commonly represents a decision.
📝 SSC Practice MCQs (Final Test)
SSC CGL
Q1. Which key combination pastes content?
Answer: A. Ctrl+V
Solution: Ctrl+V is used to paste copied or cut content.
Solution: Ctrl+V is used to paste copied or cut content.
SSC CHSL
Q2. Which is a presentation file extension?
Answer: A. .pptx
Solution: .pptx is used for MS PowerPoint presentations. .xlsx is Excel, .docx is Word.
Solution: .pptx is used for MS PowerPoint presentations. .xlsx is Excel, .docx is Word.
SSC CPO
Q3. Which is non-volatile?
Answer: D. ROM
Solution: ROM (Read Only Memory) does not lose its contents when the power is turned off.
Solution: ROM (Read Only Memory) does not lose its contents when the power is turned off.