Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 16 · 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 bytes are there in 3 KB?
2. 2.Which of these is hardware? (a) a web browser (b) an operating system (c) a speaker (d) a paint program
3. 3.💾 Which is bigger: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
4. 4.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
5. 5.Which shortcut do we press to select all? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+A (d) Ctrl+C
6. 6.🔍 Which is the odd one out? (a) pen drive (b) solid-state drive (c) memory card (d) printer
7. 7.✋ Which can we touch: hardware or software? (a) hardware (b) software
8. 8.What does it mean to move a file? (a) change its name (b) keep your work for later (c) throw it away (d) put it in another place
9. 9.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
10. 10.🧩 Is a calculator app hardware or software? (a) software (b) hardware
11. 11.Which of these is an input device? (a) printer (b) pen drive (c) memory card (d) mouse
12. 12.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the memory card (c) the pen drive (d) RAM
13. 13.⌨️ In a word processor, what does Ctrl+A do? (a) redo (b) undo (c) select all (d) copy
14. 14.True or false: a pen drive is a storage device. (a) False (b) True
15. 15.True or false: a keyboard is software. (a) False (b) True
16. 16.True or false: a paint program is software. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a scanner (b) a keyboard (c) a typing tutor (d) a mouse
18. 18.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 5 (d) 9
19. 19.What does it mean to open a file? (a) give it a new name (b) get rid of it (c) see what is inside (d) store your work
20. 20.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) GB (d) byte
21. 21.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) holds apps that are open (d) keeps photos for years
22. 22.💾 Which is bigger: 1 MB or 1 byte? (a) 1 byte (b) 1 MB
23. 23.True or false: an operating system is hardware. (a) True (b) False
24. 24.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
25. 25.💾 How many bytes are there in 4 KB?
26. 26.Which of these is hardware? (a) an operating system (b) a music player app (c) a typing tutor (d) a keyboard
27. 27.💾 How many bytes are there in 1 KB?
28. 28.True or false: Ctrl+P is the shortcut to save. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a paint program (b) a typing tutor (c) a word processor (d) a hard disk
30. 30.🔍 Which is the odd one out? (a) a keyboard (b) a printer (c) a hard disk (d) a word processor
31. 31.Which shortcut do we press to copy? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+C (d) Ctrl+X
32. 32.🧰 Is a pen drive a storage, input or output device? (a) an output device (b) a storage device (c) an input device
33. 33.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
34. 34.📁 Which word means to “throw it away” (for a file or folder)? (a) copy (b) delete (c) open (d) rename
35. 35.Which of these is hardware? (a) a typing tutor (b) a pen drive (c) a paint program (d) a computer game
36. 36.💾 Which is smaller: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
37. 37.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a document (c) a sound (d) a video
38. 38.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
39. 39.🧩 Is a mouse hardware or software? (a) hardware (b) software
40. 40.What does it mean to delete a file? (a) give it a new name (b) throw it away (c) store your work (d) see what is inside

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