Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 309 · 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.💾 How many KB are there in 3 MB?
2. 2.🔍 Which is the odd one out? (a) a typing tutor (b) a paint program (c) a web browser (d) a scanner
3. 3.True or false: a keyboard is hardware. (a) False (b) True
4. 4.🧩 Is a monitor hardware or software? (a) software (b) hardware
5. 5.🧩 Is a keyboard hardware or software? (a) software (b) hardware
6. 6.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
7. 7.🧩 Is a scanner hardware or software? (a) hardware (b) software
8. 8.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) KB (d) bit
9. 9.True or false: RAM keeps data when off. (a) False (b) True
10. 10.📄 A file name ends in .png. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
11. 11.True or false: Ctrl+P is the shortcut to paste. (a) False (b) True
12. 12.Which of these is a storage device? (a) keyboard (b) solid-state drive (c) mouse (d) printer
13. 13.✋ Which can we touch: hardware or software? (a) software (b) hardware
14. 14.🔍 Which is the odd one out? (a) a keyboard (b) a calculator app (c) a monitor (d) a scanner
15. 15.Which of these is hardware? (a) a scanner (b) a web browser (c) a computer game (d) an operating system
16. 16.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Print (c) Undo (d) Cut
17. 17.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Backspace (d) Undo
18. 18.True or false: Ctrl+A is the shortcut to paste. (a) False (b) True
19. 19.🧰 Is a mouse a storage, input or output device? (a) a storage device (b) an output device (c) an input device
20. 20.🧩 Is a typing tutor hardware or software? (a) software (b) hardware
21. 21.🧩 Is a calculator app hardware or software? (a) software (b) hardware
22. 22.💾 How many bytes are there in 1 KB?
23. 23.🔍 Which is the odd one out? (a) a paint program (b) a typing tutor (c) a mouse (d) an operating system
24. 24.💾 Which is bigger: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
25. 25.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
26. 26.Which of these is software? (a) a speaker (b) a printer (c) an operating system (d) a hard disk
27. 27.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
28. 28.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
29. 29.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a document (c) a picture (d) a sound
30. 30.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
31. 31.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
32. 32.Which of these is software? (a) a computer game (b) a hard disk (c) a webcam (d) a keyboard
33. 33.🧩 Is a webcam hardware or software? (a) software (b) hardware
34. 34.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 2 (d) 1
35. 35.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
36. 36.What does it mean to delete a file? (a) put it in another place (b) get rid of it (c) keep your work for later (d) give it a new name
37. 37.True or false: Ctrl+C is the shortcut to cut. (a) False (b) True
38. 38.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
39. 39.💾 How many bytes are there in 4 KB?
40. 40.💾 How many MB are there in 1 GB?

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