Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 247 · 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.💾 How many bits are there in 6 bytes?
2. 2.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
3. 3.📄 A file name ends in .avi. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
4. 4.💾 Which is bigger: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
5. 5.What does it mean to open a file? (a) get rid of it (b) give it a new name (c) make an exact twin (d) see what is inside
6. 6.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
7. 7.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
8. 8.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) cut (c) copy (d) select all
9. 9.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
10. 10.🧩 Is a speaker hardware or software? (a) software (b) hardware
11. 11.💾 How many MB are there in 2 GB?
12. 12.🏷️ Every file has a ___ so we can find it. (a) smell (b) name (c) weight (d) taste
13. 13.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the hard disk (c) the pen drive (d) the memory card
14. 14.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
15. 15.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Delete (c) Cut (d) Print
16. 16.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
17. 17.📁 Which word means to “store your work” (for a file or folder)? (a) open (b) copy (c) create (d) save
18. 18.Which file ending is a picture? (a) .mp3 (b) .jpg (c) .txt (d) .avi
19. 19.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a speaker (c) a folder (d) a mouse
20. 20.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
21. 21.🧩 Is a webcam hardware or software? (a) software (b) hardware
22. 22.Which of these is software? (a) a hard disk (b) a keyboard (c) a paint program (d) a mouse
23. 23.True or false: a music player app is software. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) hard disk (b) solid-state drive (c) monitor (d) pen drive
25. 25.Which file ending is a document? (a) .gif (b) .wav (c) .txt (d) .png
26. 26.💾 How many bytes are there in 2 KB?
27. 27.🔍 Which is the odd one out? (a) hard disk (b) printer (c) speaker (d) projector
28. 28.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) cloud storage (c) paper storage (d) rain storage
29. 29.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
30. 30.Which shortcut do we press to cut? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+A
31. 31.💾 How many bytes are there in 3 KB?
32. 32.💾 Which is smaller: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
33. 33.🔍 Which is the odd one out? (a) projector (b) monitor (c) memory card (d) printer
34. 34.True or false: a hard disk is an output device. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a scanner (b) a word processor (c) a speaker (d) a hard disk
36. 36.💾 Which is bigger: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
37. 37.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
38. 38.💾 Which is bigger: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
39. 39.Which of these is software? (a) a speaker (b) a word processor (c) a scanner (d) a hard disk
40. 40.💾 How many bits are there in 4 bytes?

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