Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 936 · 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.Which file ending is a picture? (a) .mp4 (b) .avi (c) .pdf (d) .gif
2. 2.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
3. 3.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
4. 4.💾 How many GB are there in 2 TB?
5. 5.Which of these is a storage device? (a) speaker (b) microphone (c) solid-state drive (d) projector
6. 6.💾 How many bytes are there in 4 KB?
7. 7.🏷️ Every file has a ___ so we can find it. (a) name (b) taste (c) weight (d) smell
8. 8.🔍 Which is the odd one out? (a) a keyboard (b) a webcam (c) a music player app (d) a scanner
9. 9.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) byte (d) GB
10. 10.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
11. 11.💾 Which is bigger: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
12. 12.Which file ending is a document? (a) .mkv (b) .pdf (c) .avi (d) .wav
13. 13.What does it mean to move a file? (a) store your work (b) throw it away (c) put it in another place (d) keep your work for later
14. 14.Which shortcut do we press to select all? (a) Ctrl+X (b) Ctrl+V (c) Ctrl+A (d) Ctrl+Z
15. 15.📁 Which word means to “store your work” (for a file or folder)? (a) save (b) create (c) open (d) delete
16. 16.Which file ending is a document? (a) .jpg (b) .txt (c) .avi (d) .mp4
17. 17.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 9 (d) 2
18. 18.True or false: a monitor is hardware. (a) False (b) True
19. 19.🧩 Is a music player app hardware or software? (a) software (b) hardware
20. 20.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a speaker (c) a folder (d) a pixel
21. 21.True or false: a calculator app is hardware. (a) True (b) False
22. 22.True or false: to save a file means to store your work. (a) True (b) False
23. 23.💾 Which is smaller: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
24. 24.Which of these is hardware? (a) a computer game (b) a word processor (c) a webcam (d) a music player app
25. 25.Which shortcut do we press to copy? (a) Ctrl+S (b) Ctrl+Y (c) Ctrl+V (d) Ctrl+C
26. 26.💾 Which is bigger: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
27. 27.🧩 Is a calculator app hardware or software? (a) hardware (b) software
28. 28.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
29. 29.💾 Which is smaller: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
30. 30.True or false: RAM is the working memory. (a) False (b) True
31. 31.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
32. 32.Which shortcut do we press to save? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+S (d) Ctrl+X
33. 33.What does it mean to save a file? (a) give it a new name (b) store your work (c) get rid of it (d) change its name
34. 34.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the hard disk (c) the pen drive (d) RAM
35. 35.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
36. 36.📁 Which word means to “make an exact twin” (for a file or folder)? (a) delete (b) rename (c) create (d) copy
37. 37.True or false: a calculator app is software. (a) False (b) True
38. 38.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) holds apps that are open (c) is temporary memory (d) is permanent storage
39. 39.💾 How many bits are there in 1 byte?
40. 40.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB

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