Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 532 · 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.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Backspace (c) Undo (d) Copy
2. 2.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
3. 3.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
4. 4.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
5. 5.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) select all (c) redo (d) save
6. 6.Which of these is software? (a) a hard disk (b) a scanner (c) a web browser (d) a mouse
7. 7.💾 Which is smaller: 1 GB or 1 bit? (a) 1 bit (b) 1 GB
8. 8.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
9. 9.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
10. 10.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
11. 11.True or false: to open a file means to see what is inside. (a) False (b) True
12. 12.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
13. 13.True or false: a pen drive is an input device. (a) True (b) False
14. 14.Which of these is true of RAM? (a) is permanent storage (b) keeps photos for years (c) keeps your saved files (d) holds apps that are open
15. 15.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) save (c) delete (d) select
16. 16.What does it mean to delete a file? (a) keep your work for later (b) put it in another place (c) change its name (d) throw it away
17. 17.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
18. 18.Which file ending is a video? (a) .mp3 (b) .txt (c) .avi (d) .wav
19. 19.🔍 Which is the odd one out? (a) a calculator app (b) a word processor (c) a speaker (d) a paint program
20. 20.🧩 Is a printer hardware or software? (a) software (b) hardware
21. 21.🔍 Which is the odd one out? (a) a keyboard (b) a mouse (c) a webcam (d) a music player app
22. 22.💾 How many GB are there in 2 TB?
23. 23.🧰 Is a solid-state drive a storage, input or output device? (a) an output device (b) an input device (c) a storage device
24. 24.🧰 Is a speaker a storage, input or output device? (a) a storage device (b) an input device (c) an output device
25. 25.🔍 Which is the odd one out? (a) pen drive (b) solid-state drive (c) keyboard (d) hard disk
26. 26.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
27. 27.Which of these is software? (a) a hard disk (b) a pen drive (c) a keyboard (d) a typing tutor
28. 28.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) print (c) undo (d) save
29. 29.📁 Which word means to “change its name” (for a file or folder)? (a) open (b) rename (c) save (d) delete
30. 30.Which of these is hardware? (a) a word processor (b) a scanner (c) an operating system (d) a paint program
31. 31.What does it mean to open a file? (a) make an exact twin (b) give it a new name (c) see what is inside (d) store your work
32. 32.Which shortcut do we press to select all? (a) Ctrl+P (b) Ctrl+A (c) Ctrl+S (d) Ctrl+Y
33. 33.True or false: Ctrl+S is the shortcut to redo. (a) False (b) True
34. 34.👩‍💻 What do we call people who write software? (a) farmers (b) programmers (c) tailors (d) plumbers
35. 35.🧰 Is a keyboard a storage, input or output device? (a) an input device (b) a storage device (c) an output device
36. 36.📄 A file name ends in .txt. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
37. 37.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) paste (c) undo (d) save
38. 38.▌ What is the blinking line that shows where you will type? (a) the icon (b) the folder (c) the toolbar (d) the cursor
39. 39.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a mouse (c) a pixel (d) a folder
40. 40.What does it mean to save a file? (a) store your work (b) change its name (c) make a brand-new one (d) put it in another place

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