Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 628 · 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.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a folder (c) a speaker (d) a pixel
2. 2.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
3. 3.💾 How many KB are there in 4 MB?
4. 4.True or false: Ctrl+A is the shortcut to select all. (a) True (b) False
5. 5.💾 Which is smaller: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
6. 6.📁 Which word means to “give it a new name” (for a file or folder)? (a) move (b) rename (c) delete (d) save
7. 7.What does it mean to open a file? (a) store your work (b) change its name (c) see what is inside (d) make a brand-new one
8. 8.💾 How many KB are there in 1 MB?
9. 9.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
10. 10.🧩 Is a pen drive hardware or software? (a) hardware (b) software
11. 11.Which of these is a storage device? (a) printer (b) hard disk (c) monitor (d) mouse
12. 12.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 9 (d) 1
13. 13.💾 How many bytes are there in 1 KB?
14. 14.Which of these is hardware? (a) a printer (b) a paint program (c) a computer game (d) a web browser
15. 15.🧾 Software is a set of ___ for the computer. (a) buttons (b) instructions (c) screws (d) wires
16. 16.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) delete (c) print (d) select
17. 17.🔍 Which is the odd one out? (a) scanner (b) solid-state drive (c) microphone (d) keyboard
18. 18.True or false: RAM is permanent storage. (a) False (b) True
19. 19.💾 Which is bigger: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
20. 20.Which shortcut do we press to print? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+X (d) Ctrl+P
21. 21.Which of these is software? (a) a hard disk (b) a speaker (c) a mouse (d) a calculator app
22. 22.📁 Which word means to “change its name” (for a file or folder)? (a) copy (b) rename (c) save (d) delete
23. 23.What does it mean to copy a file? (a) throw it away (b) make an exact twin (c) store your work (d) give it a new name
24. 24.🔍 Which is the odd one out? (a) scanner (b) microphone (c) memory card (d) mouse
25. 25.🧩 Is a typing tutor hardware or software? (a) software (b) hardware
26. 26.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+B (c) Ctrl+U (d) Ctrl+F
27. 27.🔍 Which is the odd one out? (a) a calculator app (b) a web browser (c) an operating system (d) a keyboard
28. 28.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
29. 29.💾 Which is bigger: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
30. 30.Which file ending is a document? (a) .mp3 (b) .txt (c) .jpg (d) .mkv
31. 31.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a document (c) a picture (d) a sound
32. 32.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) bit (d) GB
33. 33.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) paste (c) cut (d) redo
34. 34.True or false: a hard disk is hardware. (a) True (b) False
35. 35.Which shortcut do we press to copy? (a) Ctrl+X (b) Ctrl+Z (c) Ctrl+C (d) Ctrl+A
36. 36.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
37. 37.⌨️ In a word processor, what does Ctrl+Z do? (a) copy (b) paste (c) undo (d) print
38. 38.📄 A file name ends in .mp4. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
39. 39.Which of these is software? (a) a printer (b) a webcam (c) a scanner (d) a web browser
40. 40.Which of these is true of RAM? (a) keeps your saved files (b) is permanent storage (c) is the working memory (d) keeps photos for years

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