Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 243 · 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.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 2 (d) 5
2. 2.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+Y (d) Ctrl+V
3. 3.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
4. 4.🧩 Is a scanner hardware or software? (a) hardware (b) software
5. 5.💾 How many bits are there in 6 bytes?
6. 6.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) save (c) undo (d) copy
7. 7.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
8. 8.True or false: a pen drive is hardware. (a) True (b) False
9. 9.💾 Which is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
10. 10.💾 How many GB are there in 2 TB?
11. 11.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
12. 12.👩‍💻 What do we call people who write software? (a) programmers (b) plumbers (c) farmers (d) tailors
13. 13.💾 Which is bigger: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
14. 14.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
15. 15.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) is temporary memory (c) is permanent storage (d) holds apps that are open
16. 16.Which file ending is a sound? (a) .pdf (b) .avi (c) .wav (d) .png
17. 17.🧩 Is a mouse hardware or software? (a) software (b) hardware
18. 18.True or false: a projector is an output device. (a) True (b) False
19. 19.True or false: to save a file means to keep your work for later. (a) False (b) True
20. 20.📁 What do we call a folder inside another folder? (a) a big file (b) a subfolder (c) an icon (d) a printer
21. 21.⌨️ In a word processor, what does Ctrl+P do? (a) cut (b) select all (c) print (d) save
22. 22.True or false: a mouse is an input device. (a) False (b) True
23. 23.True or false: Ctrl+Y is the shortcut to cut. (a) True (b) False
24. 24.True or false: a keyboard is software. (a) True (b) False
25. 25.Which shortcut do we press to copy? (a) Ctrl+Z (b) Ctrl+A (c) Ctrl+Y (d) Ctrl+C
26. 26.🔍 Which is the odd one out? (a) mouse (b) scanner (c) microphone (d) speaker
27. 27.True or false: a printer is hardware. (a) False (b) True
28. 28.True or false: to save a file means to change its name. (a) False (b) True
29. 29.Which file ending is a picture? (a) .avi (b) .mp4 (c) .jpg (d) .mkv
30. 30.True or false: RAM loses data when off. (a) True (b) False
31. 31.📄 A file name ends in .avi. What is it most likely? (a) a picture (b) a document (c) a sound (d) a video
32. 32.🧰 Is a memory card a storage, input or output device? (a) an output device (b) an input device (c) a storage device
33. 33.Which of these is a storage device? (a) pen drive (b) microphone (c) keyboard (d) mouse
34. 34.🧰 Is a solid-state drive a storage, input or output device? (a) an output device (b) an input device (c) a storage device
35. 35.True or false: a printer is an input device. (a) True (b) False
36. 36.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
37. 37.🧰 Is a projector a storage, input or output device? (a) an output device (b) an input device (c) a storage device
38. 38.What does it mean to rename a file? (a) make a brand-new one (b) change its name (c) keep your work for later (d) put it in another place
39. 39.Which file ending is a document? (a) .mp4 (b) .mp3 (c) .pdf (d) .avi
40. 40.🔍 Which is the odd one out? (a) a web browser (b) a printer (c) a keyboard (d) a webcam

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