Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 39 · 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 bits are there in 8 bytes?
2. 2.🧩 Is an operating system hardware or software? (a) software (b) hardware
3. 3.What does it mean to create a file? (a) throw it away (b) store your work (c) make a brand-new one (d) see what is inside
4. 4.🔍 Which is the odd one out? (a) an operating system (b) a scanner (c) a webcam (d) a keyboard
5. 5.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
6. 6.What does it mean to copy a file? (a) change its name (b) make an exact twin (c) throw it away (d) get rid of it
7. 7.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) tailors (d) plumbers
8. 8.🧩 Is a webcam hardware or software? (a) hardware (b) software
9. 9.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) KB (d) byte
10. 10.✋ Which can we touch: hardware or software? (a) software (b) hardware
11. 11.Which file ending is a picture? (a) .png (b) .avi (c) .mp3 (d) .txt
12. 12.💾 Which is bigger: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
13. 13.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
14. 14.🔍 Which is the odd one out? (a) memory card (b) scanner (c) keyboard (d) mouse
15. 15.Which of these is software? (a) a mouse (b) a printer (c) a computer game (d) a scanner
16. 16.🧰 Is a microphone a storage, input or output device? (a) an output device (b) an input device (c) a storage device
17. 17.Which file ending is a document? (a) .wav (b) .jpg (c) .txt (d) .mp4
18. 18.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
19. 19.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
20. 20.True or false: a paint program is hardware. (a) False (b) True
21. 21.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
22. 22.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) paste (c) cut (d) save
23. 23.Which shortcut do we press to save? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+S (d) Ctrl+X
24. 24.📁 What do we call a folder inside another folder? (a) a subfolder (b) a printer (c) a big file (d) an icon
25. 25.🧩 Is a hard disk hardware or software? (a) hardware (b) software
26. 26.Which of these is a storage device? (a) mouse (b) scanner (c) keyboard (d) pen drive
27. 27.🔍 Which is the odd one out? (a) a word processor (b) a scanner (c) a mouse (d) a monitor
28. 28.💾 Which is bigger: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
29. 29.🧩 Is a printer hardware or software? (a) software (b) hardware
30. 30.🧰 Is a speaker a storage, input or output device? (a) an input device (b) a storage device (c) an output device
31. 31.Which of these is an output device? (a) speaker (b) pen drive (c) solid-state drive (d) microphone
32. 32.Which of these is an input device? (a) pen drive (b) memory card (c) solid-state drive (d) scanner
33. 33.🔍 Which is the odd one out? (a) a paint program (b) a webcam (c) a mouse (d) a keyboard
34. 34.🧩 Is a word processor hardware or software? (a) software (b) hardware
35. 35.Which shortcut do we press to copy? (a) Ctrl+P (b) Ctrl+S (c) Ctrl+C (d) Ctrl+X
36. 36.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
37. 37.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+U (d) Ctrl+F
38. 38.Which of these is hardware? (a) a paint program (b) a calculator app (c) a music player app (d) a scanner
39. 39.What does it mean to delete a file? (a) put it in another place (b) make a brand-new one (c) throw it away (d) change its name
40. 40.💾 How many MB are there in 2 GB?

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