Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 667 · 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.🧩 Is a mouse hardware or software? (a) software (b) hardware
2. 2.Which file ending is a sound? (a) .jpg (b) .mkv (c) .mp3 (d) .png
3. 3.📁 Which word means to “keep your work for later” (for a file or folder)? (a) open (b) rename (c) save (d) copy
4. 4.Which of these is an output device? (a) microphone (b) speaker (c) keyboard (d) memory card
5. 5.True or false: a webcam is software. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a scanner (b) a web browser (c) an operating system (d) a typing tutor
7. 7.Which of these is software? (a) a speaker (b) a printer (c) a web browser (d) a scanner
8. 8.Which of these is software? (a) a webcam (b) a printer (c) a calculator app (d) a monitor
9. 9.True or false: RAM is the working memory. (a) True (b) False
10. 10.Which shortcut do we press to select all? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+A (d) Ctrl+C
11. 11.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Undo (c) Delete (d) Backspace
12. 12.🧾 Software is a set of ___ for the computer. (a) screws (b) instructions (c) buttons (d) wires
13. 13.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an input device (c) an output device
14. 14.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) select all (c) redo (d) cut
15. 15.💾 Which is smaller: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
16. 16.Which of these is true of RAM? (a) keeps photos for years (b) keeps your saved files (c) keeps data when off (d) is the working memory
17. 17.True or false: a web browser is hardware. (a) False (b) True
18. 18.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) paste (c) cut (d) redo
19. 19.💾 Which is bigger: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
20. 20.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
21. 21.🧩 Is a calculator app hardware or software? (a) software (b) hardware
22. 22.💾 How many bytes are there in 4 KB?
23. 23.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
24. 24.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a speaker (c) a mouse (d) a folder
25. 25.💾 Which is bigger: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
26. 26.💾 How many KB are there in 4 MB?
27. 27.📁 Which word means to “get rid of it” (for a file or folder)? (a) save (b) create (c) delete (d) rename
28. 28.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) the hard disk (c) RAM (d) the memory card
29. 29.True or false: to copy a file means to make an exact twin. (a) False (b) True
30. 30.🧩 Is a keyboard hardware or software? (a) hardware (b) software
31. 31.💾 How many bits are there in 12 bytes?
32. 32.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
33. 33.True or false: to rename a file means to give it a new name. (a) True (b) False
34. 34.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
35. 35.Which file ending is a video? (a) .wav (b) .pdf (c) .jpg (d) .mp4
36. 36.Which shortcut do we press to cut? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+A (d) Ctrl+C
37. 37.True or false: to save a file means to throw it away. (a) True (b) False
38. 38.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM
39. 39.What does it mean to save a file? (a) give it a new name (b) change its name (c) get rid of it (d) keep your work for later
40. 40.📁 Which word means to “throw it away” (for a file or folder)? (a) delete (b) copy (c) open (d) rename

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