Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 622 · 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.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) projector (b) printer (c) keyboard (d) monitor
4. 4.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is temporary memory (c) is the working memory (d) keeps data when off
5. 5.True or false: Ctrl+Z is the shortcut to paste. (a) True (b) False
6. 6.True or false: Ctrl+C is the shortcut to undo. (a) True (b) False
7. 7.True or false: Ctrl+X is the shortcut to print. (a) True (b) False
8. 8.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) copy (c) redo (d) select all
9. 9.🧩 Is a keyboard hardware or software? (a) hardware (b) software
10. 10.🔍 Which is the odd one out? (a) a calculator app (b) a pen drive (c) a hard disk (d) a webcam
11. 11.Which of these is hardware? (a) a paint program (b) an operating system (c) a web browser (d) a scanner
12. 12.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
13. 13.True or false: Ctrl+C is the shortcut to cut. (a) True (b) False
14. 14.📷 A camera keeps its photos on a small ___. (a) keyboard (b) memory card (c) speaker (d) mouse pad
15. 15.💾 Which is bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
16. 16.🧾 Software is a set of ___ for the computer. (a) instructions (b) wires (c) screws (d) buttons
17. 17.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
18. 18.💾 How many bits are there in 11 bytes?
19. 19.True or false: a hard disk is an input device. (a) True (b) False
20. 20.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Delete (c) Undo (d) Cut
21. 21.🔍 Which is the odd one out? (a) a webcam (b) a web browser (c) a paint program (d) a word processor
22. 22.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
23. 23.🧩 Is a music player app hardware or software? (a) hardware (b) software
24. 24.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) print (c) save (d) paste
25. 25.What does it mean to rename a file? (a) store your work (b) give it a new name (c) throw it away (d) make an exact twin
26. 26.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
27. 27.🧰 Is a microphone a storage, input or output device? (a) an input device (b) a storage device (c) an output device
28. 28.💾 How many bits are there in 4 bytes?
29. 29.Which of these is software? (a) a speaker (b) a hard disk (c) a word processor (d) a keyboard
30. 30.💾 How many GB are there in 2 TB?
31. 31.🧩 Is a word processor hardware or software? (a) hardware (b) software
32. 32.💾 Which is bigger: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
33. 33.🔍 Which is the odd one out? (a) microphone (b) pen drive (c) keyboard (d) mouse
34. 34.Which of these is software? (a) a monitor (b) a keyboard (c) a calculator app (d) a scanner
35. 35.What does it mean to rename a file? (a) put it in another place (b) change its name (c) make a brand-new one (d) keep your work for later
36. 36.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+F (d) Ctrl+U
37. 37.🔍 Which is the odd one out? (a) printer (b) speaker (c) monitor (d) solid-state drive
38. 38.True or false: a speaker is a storage device. (a) True (b) False
39. 39.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 5 (d) 1
40. 40.💾 How many bits are there in 5 bytes?

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