Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 940 · 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.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an input device (c) an output device
2. 2.Which of these is software? (a) a mouse (b) a scanner (c) a keyboard (d) a web browser
3. 3.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
4. 4.💾 How many bits are there in 7 bytes?
5. 5.Which shortcut do we press to redo? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+C (d) Ctrl+Y
6. 6.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
7. 7.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+X (c) Ctrl+C (d) Ctrl+A
8. 8.What does it mean to move a file? (a) store your work (b) keep your work for later (c) make an exact twin (d) put it in another place
9. 9.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+C (c) Ctrl+P (d) Ctrl+X
10. 10.True or false: to move a file means to get rid of it. (a) False (b) True
11. 11.📁 Which word means to “give it a new name” (for a file or folder)? (a) save (b) delete (c) create (d) rename
12. 12.True or false: a hard disk is an output device. (a) True (b) False
13. 13.💾 How many bits are there in 10 bytes?
14. 14.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
15. 15.💾 How many KB are there in 2 MB?
16. 16.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
17. 17.Which of these is software? (a) a webcam (b) a hard disk (c) a word processor (d) a speaker
18. 18.Which file ending is a picture? (a) .avi (b) .txt (c) .png (d) .mp3
19. 19.True or false: a mouse is an input device. (a) True (b) False
20. 20.💾 Which is smaller: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
21. 21.True or false: a paint program is software. (a) False (b) True
22. 22.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Redo (c) Delete (d) Copy
23. 23.True or false: Ctrl+C is the shortcut to save. (a) True (b) False
24. 24.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
25. 25.Which of these is true of RAM? (a) keeps your saved files (b) keeps photos for years (c) is temporary memory (d) is permanent storage
26. 26.True or false: a keyboard is software. (a) True (b) False
27. 27.Which of these is hardware? (a) a calculator app (b) a paint program (c) a pen drive (d) a music player app
28. 28.🔍 Which is the odd one out? (a) a pen drive (b) a mouse (c) a scanner (d) a word processor
29. 29.True or false: an operating system is hardware. (a) True (b) False
30. 30.Which of these is true of RAM? (a) is the working memory (b) keeps your saved files (c) is permanent storage (d) keeps photos for years
31. 31.True or false: Ctrl+Y is the shortcut to select all. (a) False (b) True
32. 32.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
33. 33.🔍 Which is the odd one out? (a) a music player app (b) a scanner (c) a word processor (d) a web browser
34. 34.🔍 Which is the odd one out? (a) a computer game (b) a word processor (c) a monitor (d) a typing tutor
35. 35.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
36. 36.Which file ending is a sound? (a) .mkv (b) .gif (c) .wav (d) .avi
37. 37.🔍 Which is the odd one out? (a) a web browser (b) a calculator app (c) a computer game (d) a keyboard
38. 38.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a speaker (c) a folder (d) a pixel
39. 39.Which of these is an output device? (a) microphone (b) monitor (c) pen drive (d) hard disk
40. 40.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte

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