Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 602 · 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 is the smallest unit of computer memory? (a) byte (b) KB (c) bit (d) GB
2. 2.💾 How many MB are there in 3 GB?
3. 3.Which file ending is a video? (a) .mp4 (b) .gif (c) .pdf (d) .wav
4. 4.True or false: a scanner is software. (a) True (b) False
5. 5.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) redo (c) cut (d) save
6. 6.True or false: to copy a file means to make an exact twin. (a) False (b) True
7. 7.True or false: a webcam is hardware. (a) False (b) True
8. 8.True or false: Ctrl+V is the shortcut to save. (a) False (b) True
9. 9.True or false: a paint program is software. (a) True (b) False
10. 10.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 2 (d) 1
11. 11.True or false: a calculator app is hardware. (a) True (b) False
12. 12.Which of these is hardware? (a) a typing tutor (b) a scanner (c) a paint program (d) a word processor
13. 13.📁 Which word means to “store your work” (for a file or folder)? (a) create (b) rename (c) save (d) copy
14. 14.True or false: a computer game is hardware. (a) True (b) False
15. 15.📁 Which word means to “get rid of it” (for a file or folder)? (a) save (b) delete (c) rename (d) copy
16. 16.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
17. 17.True or false: storage (like a hard disk) keeps your saved files. (a) True (b) False
18. 18.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) select (c) save (d) delete
19. 19.📁 Which word means to “give it a new name” (for a file or folder)? (a) open (b) copy (c) save (d) rename
20. 20.True or false: Ctrl+A is the shortcut to print. (a) True (b) False
21. 21.True or false: RAM keeps photos for years. (a) True (b) False
22. 22.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
23. 23.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
24. 24.Which of these is hardware? (a) a computer game (b) a printer (c) a music player app (d) a paint program
25. 25.True or false: to delete a file means to make a brand-new one. (a) True (b) False
26. 26.⌨️ In a word processor, what does Ctrl+Z do? (a) paste (b) print (c) redo (d) undo
27. 27.True or false: a word processor is hardware. (a) False (b) True
28. 28.What does it mean to copy a file? (a) make an exact twin (b) keep your work for later (c) put it in another place (d) change its name
29. 29.True or false: a hard disk is a storage device. (a) True (b) False
30. 30.💾 How many GB are there in 1 TB?
31. 31.💾 How many bytes are there in 3 KB?
32. 32.▌ What is the blinking line that shows where you will type? (a) the toolbar (b) the icon (c) the folder (d) the cursor
33. 33.💾 How many bits are there in 3 bytes?
34. 34.💾 How many bytes are there in 4 KB?
35. 35.Which shortcut do we press to undo? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+S (d) Ctrl+Z
36. 36.💾 How many KB are there in 3 MB?
37. 37.🔍 Which is the odd one out? (a) a speaker (b) a mouse (c) a webcam (d) an operating system
38. 38.📄 A file name ends in .gif. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
39. 39.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
40. 40.True or false: to create a file means to change its name. (a) True (b) False

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