Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 156 · 40 questions

Remember (Find the topic, use the idea): Read the question and find its topic: hardware or software, units, memory, files, or editing text. Use that lesson’s idea — can you touch it, multiply to change units, RAM forgets, which file action, which shortcut. For unit sums, write the rule first (1 byte = 8 bits, 1 KB = 1024 bytes) and then multiply.

1. 1.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
2. 2.Which shortcut do we press to save? (a) Ctrl+C (b) Ctrl+S (c) Ctrl+Z (d) Ctrl+Y
3. 3.True or false: to move a file means to change its name. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a hard disk (b) a webcam (c) a typing tutor (d) a scanner
5. 5.👩‍💻 What do we call people who write software? (a) plumbers (b) programmers (c) tailors (d) farmers
6. 6.💾 How many KB are there in 4 MB?
7. 7.💾 How many GB are there in 1 TB?
8. 8.True or false: a keyboard is software. (a) True (b) False
9. 9.🧩 Is a paint program hardware or software? (a) software (b) hardware
10. 10.⌨️ In a word processor, what does Ctrl+C do? (a) save (b) redo (c) copy (d) print
11. 11.True or false: to delete a file means to keep your work for later. (a) True (b) False
12. 12.Which of these is software? (a) a mouse (b) a pen drive (c) a monitor (d) an operating system
13. 13.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) cut (c) paste (d) save
14. 14.True or false: Ctrl+Z is the shortcut to print. (a) False (b) True
15. 15.True or false: to delete a file means to see what is inside. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a printer (b) a scanner (c) a monitor (d) a computer game
17. 17.💾 How many bits are there in 9 bytes?
18. 18.Which of these is an output device? (a) memory card (b) microphone (c) mouse (d) projector
19. 19.Which shortcut do we press to print? (a) Ctrl+X (b) Ctrl+P (c) Ctrl+V (d) Ctrl+Z
20. 20.True or false: an operating system is hardware. (a) True (b) False
21. 21.Which of these is hardware? (a) an operating system (b) a paint program (c) a web browser (d) a mouse
22. 22.True or false: storage (like a hard disk) keeps data when off. (a) True (b) False
23. 23.True or false: a monitor is software. (a) False (b) True
24. 24.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
25. 25.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
26. 26.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) byte (d) KB
27. 27.True or false: to open a file means to see what is inside. (a) False (b) True
28. 28.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) select all (c) print (d) paste
29. 29.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+U (c) Ctrl+I (d) Ctrl+F
30. 30.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
31. 31.💾 How many bytes are there in 1 KB?
32. 32.🧰 Is a projector a storage, input or output device? (a) an input device (b) a storage device (c) an output device
33. 33.🧩 Is a mouse hardware or software? (a) hardware (b) software
34. 34.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
35. 35.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
36. 36.🔍 Which is the odd one out? (a) microphone (b) scanner (c) speaker (d) mouse
37. 37.🔍 Which is the odd one out? (a) a scanner (b) an operating system (c) a word processor (d) a web browser
38. 38.True or false: a webcam is hardware. (a) False (b) True
39. 39.✋ Which can we touch: hardware or software? (a) hardware (b) software
40. 40.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) paste (c) select all (d) redo

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