Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 692 · 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.🔍 Which is the odd one out? (a) a music player app (b) an operating system (c) a pen drive (d) a web browser
2. 2.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
3. 3.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
4. 4.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) select (c) delete (d) print
5. 5.⌨️ In a word processor, what does Ctrl+A do? (a) cut (b) select all (c) copy (d) undo
6. 6.True or false: to move a file means to put it in another place. (a) True (b) False
7. 7.💾 Which is smaller: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
8. 8.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
9. 9.True or false: an operating system is software. (a) False (b) True
10. 10.True or false: a speaker is an output device. (a) True (b) False
11. 11.True or false: a printer is an output device. (a) False (b) True
12. 12.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+Y (c) Ctrl+V (d) Ctrl+A
13. 13.🔍 Which is the odd one out? (a) a calculator app (b) a printer (c) an operating system (d) a music player app
14. 14.✋ Which can we touch: hardware or software? (a) hardware (b) software
15. 15.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) copy (c) save (d) print
16. 16.🔍 Which is the odd one out? (a) hard disk (b) pen drive (c) solid-state drive (d) mouse
17. 17.Which shortcut do we press to redo? (a) Ctrl+S (b) Ctrl+C (c) Ctrl+Y (d) Ctrl+V
18. 18.💾 How many bytes are there in 2 KB?
19. 19.Which of these is hardware? (a) a mouse (b) a word processor (c) a web browser (d) an operating system
20. 20.💾 Which is smaller: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
21. 21.Which of these is a storage device? (a) microphone (b) mouse (c) hard disk (d) keyboard
22. 22.True or false: a typing tutor is hardware. (a) True (b) False
23. 23.True or false: to save a file means to get rid of it. (a) False (b) True
24. 24.💾 Which is bigger: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
25. 25.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) copy (c) save (d) print
26. 26.True or false: RAM is the working memory. (a) True (b) False
27. 27.💾 How many KB are there in 2 MB?
28. 28.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) GB (d) byte
29. 29.Which shortcut do we press to copy? (a) Ctrl+A (b) Ctrl+P (c) Ctrl+C (d) Ctrl+X
30. 30.True or false: a hard disk is a storage device. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a paint program (b) a computer game (c) a web browser (d) a hard disk
32. 32.🧩 Is a mouse hardware or software? (a) hardware (b) software
33. 33.Which shortcut do we press to print? (a) Ctrl+P (b) Ctrl+C (c) Ctrl+S (d) Ctrl+Y
34. 34.🔍 Which is the odd one out? (a) a webcam (b) a keyboard (c) a web browser (d) a monitor
35. 35.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a mouse (c) a speaker (d) a pixel
36. 36.💾 How many MB are there in 2 GB?
37. 37.True or false: a calculator app is hardware. (a) False (b) True
38. 38.🧩 Is a music player app hardware or software? (a) software (b) hardware
39. 39.🧰 Is a microphone a storage, input or output device? (a) an input device (b) a storage device (c) an output device
40. 40.True or false: to open a file means to make an exact twin. (a) True (b) False

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