Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 920 · 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.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) bit (d) KB
2. 2.⌨️ In a word processor, what does Ctrl+V do? (a) redo (b) copy (c) paste (d) save
3. 3.Which shortcut do we press to undo? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+S
4. 4.💾 How many bytes are there in 4 KB?
5. 5.⌨️ In a word processor, what does Ctrl+S do? (a) undo (b) save (c) paste (d) cut
6. 6.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 5 (d) 9
7. 7.💾 How many GB are there in 1 TB?
8. 8.🧩 Is a word processor hardware or software? (a) hardware (b) software
9. 9.📁 Which word means to “keep your work for later” (for a file or folder)? (a) copy (b) delete (c) save (d) move
10. 10.True or false: a printer is an output device. (a) True (b) False
11. 11.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Backspace (c) Delete (d) Undo
12. 12.What does it mean to copy a file? (a) make a brand-new one (b) give it a new name (c) put it in another place (d) make an exact twin
13. 13.Which file ending is a sound? (a) .avi (b) .txt (c) .mp3 (d) .mkv
14. 14.🧩 Is a music player app hardware or software? (a) software (b) hardware
15. 15.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) programmers (d) tailors
16. 16.Which of these is true of RAM? (a) holds apps that are open (b) keeps your saved files (c) keeps data when off (d) is permanent storage
17. 17.🔍 Which is the odd one out? (a) a speaker (b) a mouse (c) a paint program (d) a monitor
18. 18.Which of these is software? (a) a word processor (b) a pen drive (c) a monitor (d) a printer
19. 19.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+P (c) Ctrl+Y (d) Ctrl+Z
20. 20.Which of these is an input device? (a) projector (b) solid-state drive (c) speaker (d) microphone
21. 21.True or false: Ctrl+Y is the shortcut to select all. (a) True (b) False
22. 22.True or false: RAM is permanent storage. (a) True (b) False
23. 23.True or false: a scanner is hardware. (a) True (b) False
24. 24.Which shortcut do we press to cut? (a) Ctrl+Z (b) Ctrl+S (c) Ctrl+Y (d) Ctrl+X
25. 25.🧰 Is a mouse a storage, input or output device? (a) an input device (b) a storage device (c) an output device
26. 26.⌨️ In a word processor, what does Ctrl+A do? (a) cut (b) save (c) undo (d) select all
27. 27.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
28. 28.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Cut (d) Copy
29. 29.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a speaker (d) a folder
30. 30.📁 Which word means to “get rid of it” (for a file or folder)? (a) create (b) open (c) delete (d) copy
31. 31.🔍 Which is the odd one out? (a) microphone (b) keyboard (c) scanner (d) memory card
32. 32.True or false: to delete a file means to put it in another place. (a) True (b) False
33. 33.🧾 Software is a set of ___ for the computer. (a) buttons (b) instructions (c) wires (d) screws
34. 34.💾 Which is smaller: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
35. 35.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
36. 36.True or false: a projector is a storage device. (a) True (b) False
37. 37.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
38. 38.💾 Which is bigger: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
39. 39.Which of these is hardware? (a) a paint program (b) a web browser (c) a pen drive (d) a computer game
40. 40.🧩 Is a speaker hardware or software? (a) hardware (b) software

Free computer lessons, practice and worksheets at talentjr.in/computer-worksheets