Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 58 · 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.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+P (c) Ctrl+Z (d) Ctrl+X
2. 2.Which file ending is a video? (a) .txt (b) .png (c) .avi (d) .pdf
3. 3.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) byte (d) bit
4. 4.What does it mean to save a file? (a) see what is inside (b) change its name (c) store your work (d) give it a new name
5. 5.True or false: a calculator app is software. (a) False (b) True
6. 6.✋ Which can we touch: hardware or software? (a) software (b) hardware
7. 7.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Cut (d) Copy
8. 8.🔍 Which is the odd one out? (a) keyboard (b) microphone (c) mouse (d) projector
9. 9.💾 How many bits are there in 4 bytes?
10. 10.📁 Which word means to “change its name” (for a file or folder)? (a) move (b) delete (c) rename (d) open
11. 11.💾 Which is bigger: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
12. 12.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
13. 13.💾 Which is bigger: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
14. 14.🧩 Is a hard disk hardware or software? (a) hardware (b) software
15. 15.Which of these is hardware? (a) a calculator app (b) a paint program (c) a word processor (d) a pen drive
16. 16.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
17. 17.⌨️ In a word processor, what does Ctrl+C do? (a) print (b) select all (c) copy (d) save
18. 18.What does it mean to move a file? (a) put it in another place (b) change its name (c) store your work (d) see what is inside
19. 19.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a big file (d) a subfolder
20. 20.Which file ending is a sound? (a) .mp3 (b) .txt (c) .png (d) .pdf
21. 21.💾 Which is smaller: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
22. 22.🧰 Is a solid-state drive a storage, input or output device? (a) an input device (b) a storage device (c) an output device
23. 23.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
24. 24.🧩 Is a web browser hardware or software? (a) software (b) hardware
25. 25.Which of these is hardware? (a) a word processor (b) a keyboard (c) a paint program (d) a music player app
26. 26.True or false: a microphone is a storage device. (a) True (b) False
27. 27.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) screws (d) buttons
28. 28.Which of these is hardware? (a) a paint program (b) a mouse (c) a calculator app (d) a typing tutor
29. 29.Which of these is software? (a) a hard disk (b) a monitor (c) a word processor (d) a speaker
30. 30.🧩 Is an operating system hardware or software? (a) software (b) hardware
31. 31.True or false: to move a file means to put it in another place. (a) True (b) False
32. 32.💾 How many bytes are there in 1 KB?
33. 33.🔍 Which is the odd one out? (a) a music player app (b) a word processor (c) a printer (d) a paint program
34. 34.True or false: to move a file means to change its name. (a) True (b) False
35. 35.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+P (c) Ctrl+Y (d) Ctrl+X
36. 36.True or false: to open a file means to keep your work for later. (a) True (b) False
37. 37.⌨️ In a word processor, what does Ctrl+X do? (a) redo (b) paste (c) cut (d) undo
38. 38.Which file ending is a picture? (a) .png (b) .wav (c) .avi (d) .mp3
39. 39.🧩 Is a speaker hardware or software? (a) hardware (b) software
40. 40.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) redo (c) copy (d) save

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