Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 123 · 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.True or false: storage (like a hard disk) loses data when off. (a) False (b) True
2. 2.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
3. 3.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) redo (c) save (d) paste
4. 4.💾 How many bytes are there in 1 KB?
5. 5.💾 Which is smaller: 1 KB or 1 MB? (a) 1 MB (b) 1 KB
6. 6.What does it mean to save a file? (a) keep your work for later (b) give it a new name (c) put it in another place (d) get rid of it
7. 7.💾 Which is smaller: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
8. 8.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
9. 9.Which of these is an input device? (a) memory card (b) pen drive (c) solid-state drive (d) mouse
10. 10.True or false: to delete a file means to throw it away. (a) False (b) True
11. 11.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
12. 12.True or false: a speaker is software. (a) False (b) True
13. 13.True or false: Ctrl+C is the shortcut to select all. (a) False (b) True
14. 14.💾 Which is smaller: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
15. 15.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
16. 16.Which shortcut do we press to copy? (a) Ctrl+S (b) Ctrl+C (c) Ctrl+V (d) Ctrl+Z
17. 17.What does it mean to rename a file? (a) keep your work for later (b) store your work (c) put it in another place (d) change its name
18. 18.True or false: a web browser is software. (a) True (b) False
19. 19.⌨️ In a word processor, what does Ctrl+A do? (a) undo (b) select all (c) save (d) redo
20. 20.Which of these is an input device? (a) memory card (b) projector (c) microphone (d) monitor
21. 21.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
22. 22.Which file ending is a sound? (a) .mp3 (b) .png (c) .avi (d) .mp4
23. 23.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
24. 24.⌨️ In a word processor, what does Ctrl+X do? (a) undo (b) print (c) cut (d) copy
25. 25.📁 Which word means to “give it a new name” (for a file or folder)? (a) create (b) save (c) rename (d) move
26. 26.True or false: RAM keeps photos for years. (a) False (b) True
27. 27.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
28. 28.Which of these is hardware? (a) a webcam (b) a paint program (c) a web browser (d) a calculator app
29. 29.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
30. 30.🔍 Which is the odd one out? (a) an operating system (b) a keyboard (c) a hard disk (d) a monitor
31. 31.⌨️ In a word processor, what does Ctrl+V do? (a) paste (b) cut (c) select all (d) print
32. 32.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
33. 33.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device
34. 34.Which file ending is a sound? (a) .txt (b) .wav (c) .png (d) .gif
35. 35.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) create (c) copy (d) rename
36. 36.🏷️ Every file has a ___ so we can find it. (a) weight (b) name (c) taste (d) smell
37. 37.Which of these is software? (a) a music player app (b) a speaker (c) a scanner (d) a hard disk
38. 38.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) select all (c) redo (d) save
39. 39.🔍 Which is the odd one out? (a) a typing tutor (b) a computer game (c) a word processor (d) a scanner
40. 40.📄 What does a word processor help us do? (a) water plants (b) type and edit text (c) cook food (d) fly a kite

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