Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 975 · 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 is the odd one out? (a) a hard disk (b) a monitor (c) a mouse (d) a calculator app
2. 2.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
3. 3.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) buttons (d) screws
4. 4.True or false: to save a file means to give it a new name. (a) True (b) False
5. 5.Which of these is an input device? (a) keyboard (b) pen drive (c) memory card (d) hard disk
6. 6.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
7. 7.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) KB (d) byte
8. 8.📁 Which word means to “put it in another place” (for a file or folder)? (a) rename (b) save (c) move (d) delete
9. 9.💾 Which is bigger: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
10. 10.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Redo (d) Cut
11. 11.True or false: a computer game is software. (a) True (b) False
12. 12.What does it mean to save a file? (a) throw it away (b) see what is inside (c) change its name (d) store your work
13. 13.True or false: Ctrl+S is the shortcut to cut. (a) True (b) False
14. 14.📄 A file name ends in .gif. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
15. 15.📁 Which word means to “change its name” (for a file or folder)? (a) rename (b) move (c) open (d) copy
16. 16.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) paste (c) cut (d) undo
17. 17.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
18. 18.Which of these is a storage device? (a) memory card (b) projector (c) monitor (d) keyboard
19. 19.Which of these is software? (a) a keyboard (b) a pen drive (c) a speaker (d) a music player app
20. 20.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+U (c) Ctrl+B (d) Ctrl+I
21. 21.✋ Which can we touch: hardware or software? (a) software (b) hardware
22. 22.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
23. 23.Which shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+P (d) Ctrl+Z
24. 24.📁 Which word means to “keep your work for later” (for a file or folder)? (a) delete (b) copy (c) save (d) move
25. 25.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) tailors (d) programmers
26. 26.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
27. 27.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a folder (d) a speaker
28. 28.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
29. 29.🧩 Is a printer hardware or software? (a) software (b) hardware
30. 30.True or false: Ctrl+Z is the shortcut to redo. (a) True (b) False
31. 31.Which file ending is a picture? (a) .mp4 (b) .mp3 (c) .pdf (d) .png
32. 32.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
33. 33.🧰 Is a memory card a storage, input or output device? (a) an output device (b) a storage device (c) an input device
34. 34.True or false: to delete a file means to see what is inside. (a) True (b) False
35. 35.🧩 Is a hard disk hardware or software? (a) hardware (b) software
36. 36.Which file ending is a picture? (a) .pdf (b) .mkv (c) .avi (d) .gif
37. 37.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) mouse (b) memory card (c) microphone (d) scanner
39. 39.True or false: Ctrl+A is the shortcut to save. (a) False (b) True
40. 40.💾 How many bits are there in 4 bytes?

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