Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 557 · 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 does it mean to open a file? (a) put it in another place (b) change its name (c) make a brand-new one (d) see what is inside
2. 2.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
3. 3.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Delete (c) Cut (d) Print
4. 4.💾 Which is smaller: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
5. 5.✋ Which can we touch: hardware or software? (a) software (b) hardware
6. 6.True or false: to rename a file means to change its name. (a) False (b) True
7. 7.💾 Which is smaller: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
8. 8.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
9. 9.📁 Which word means to “change its name” (for a file or folder)? (a) save (b) create (c) open (d) rename
10. 10.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
11. 11.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) programmers (d) tailors
12. 12.Which file ending is a picture? (a) .jpg (b) .mp3 (c) .avi (d) .mp4
13. 13.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
14. 14.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) mouse (d) hard disk
15. 15.What does it mean to rename a file? (a) store your work (b) throw it away (c) get rid of it (d) give it a new name
16. 16.Which of these is software? (a) a pen drive (b) a keyboard (c) a mouse (d) a calculator app
17. 17.Which of these is true of RAM? (a) keeps photos for years (b) keeps data when off (c) holds apps that are open (d) is permanent storage
18. 18.True or false: RAM loses data when off. (a) True (b) False
19. 19.Which file ending is a video? (a) .pdf (b) .png (c) .txt (d) .mkv
20. 20.Which of these is an output device? (a) printer (b) mouse (c) memory card (d) pen drive
21. 21.💾 Which is bigger: 1 TB or 1 MB? (a) 1 MB (b) 1 TB
22. 22.Which of these is software? (a) a hard disk (b) a webcam (c) a speaker (d) an operating system
23. 23.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) rename (c) move (d) create
24. 24.Which file ending is a picture? (a) .avi (b) .pdf (c) .mp3 (d) .png
25. 25.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+A (d) Ctrl+C
26. 26.📁 What do we call a folder inside another folder? (a) a subfolder (b) an icon (c) a big file (d) a printer
27. 27.📄 A file name ends in .avi. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
28. 28.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
29. 29.True or false: to move a file means to make an exact twin. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a keyboard (b) a word processor (c) a calculator app (d) a music player app
31. 31.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) save (c) paste (d) redo
32. 32.📷 A camera keeps its photos on a small ___. (a) memory card (b) keyboard (c) mouse pad (d) speaker
33. 33.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
34. 34.⌨️ In a word processor, what does Ctrl+A do? (a) cut (b) print (c) copy (d) select all
35. 35.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
36. 36.💾 How many KB are there in 4 MB?
37. 37.💾 How many bits are there in 3 bytes?
38. 38.📁 Which word means to “throw it away” (for a file or folder)? (a) save (b) copy (c) move (d) delete
39. 39.True or false: Ctrl+X is the shortcut to undo. (a) False (b) True
40. 40.🏷️ Every file has a ___ so we can find it. (a) taste (b) name (c) weight (d) smell

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