Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 584 · 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 2 MB?
2. 2.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Undo (c) Backspace (d) Copy
3. 3.What does it mean to delete a file? (a) make a brand-new one (b) store your work (c) throw it away (d) give it a new name
4. 4.⌨️ In a word processor, what does Ctrl+Y do? (a) cut (b) select all (c) paste (d) redo
5. 5.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
6. 6.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
7. 7.🧩 Is a keyboard hardware or software? (a) software (b) hardware
8. 8.Which of these is software? (a) a monitor (b) a printer (c) a mouse (d) a computer game
9. 9.🧩 Is a scanner hardware or software? (a) software (b) hardware
10. 10.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
11. 11.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
12. 12.True or false: RAM is the working memory. (a) True (b) False
13. 13.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the hard disk (d) the pen drive
14. 14.📄 A file name ends in .jpg. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
15. 15.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) save (c) print (d) copy
16. 16.🧩 Is a printer hardware or software? (a) software (b) hardware
17. 17.Which of these is an output device? (a) hard disk (b) memory card (c) monitor (d) pen drive
18. 18.🏷️ Every file has a ___ so we can find it. (a) weight (b) smell (c) taste (d) name
19. 19.True or false: to open a file means to give it a new name. (a) False (b) True
20. 20.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) buttons (d) instructions
21. 21.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
22. 22.🧩 Is a speaker hardware or software? (a) software (b) hardware
23. 23.💾 Which is smaller: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
24. 24.💾 How many bytes are there in 2 KB?
25. 25.✋ Which can we touch: hardware or software? (a) software (b) hardware
26. 26.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
27. 27.True or false: RAM keeps your saved files. (a) False (b) True
28. 28.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
29. 29.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
30. 30.True or false: a monitor is software. (a) False (b) True
31. 31.Which of these is an input device? (a) solid-state drive (b) pen drive (c) monitor (d) keyboard
32. 32.💾 Which is bigger: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
33. 33.What does it mean to copy a file? (a) store your work (b) make an exact twin (c) keep your work for later (d) throw it away
34. 34.True or false: Ctrl+C is the shortcut to paste. (a) False (b) True
35. 35.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a folder (c) a pixel (d) a speaker
36. 36.Which of these is hardware? (a) a computer game (b) a typing tutor (c) a web browser (d) a monitor
37. 37.💾 How many bits are there in 6 bytes?
38. 38.Which of these is software? (a) a calculator app (b) a mouse (c) a monitor (d) a pen drive
39. 39.Which shortcut do we press to undo? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+Z (d) Ctrl+A
40. 40.🧩 Is a computer game hardware or software? (a) software (b) hardware

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