Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 879 · 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 of these is true of storage (like a hard disk)? (a) loses data when off (b) is temporary memory (c) keeps your saved files (d) is the working memory
2. 2.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
3. 3.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) copy (c) print (d) save
4. 4.Which file ending is a document? (a) .pdf (b) .jpg (c) .mp4 (d) .mkv
5. 5.🧩 Is an operating system hardware or software? (a) hardware (b) software
6. 6.Which of these is an output device? (a) projector (b) solid-state drive (c) scanner (d) hard disk
7. 7.🔍 Which is the odd one out? (a) a monitor (b) a speaker (c) a printer (d) a calculator app
8. 8.💾 Which is smaller: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
9. 9.🔍 Which is the odd one out? (a) a webcam (b) a mouse (c) a typing tutor (d) a scanner
10. 10.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
11. 11.📄 A file name ends in .jpg. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
12. 12.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
13. 13.🔍 Which is the odd one out? (a) a mouse (b) a web browser (c) a word processor (d) a typing tutor
14. 14.🔍 Which is the odd one out? (a) microphone (b) projector (c) speaker (d) printer
15. 15.📄 A file name ends in .mkv. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
16. 16.What does it mean to move a file? (a) get rid of it (b) make a brand-new one (c) put it in another place (d) keep your work for later
17. 17.True or false: Ctrl+S is the shortcut to copy. (a) True (b) False
18. 18.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a mouse (d) a speaker
19. 19.💾 How many bits are there in 3 bytes?
20. 20.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
21. 21.👩‍💻 What do we call people who write software? (a) programmers (b) tailors (c) farmers (d) plumbers
22. 22.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) GB (d) byte
23. 23.🖍️ Before we cut or copy text, we must first ___ it. (a) delete (b) select (c) save (d) print
24. 24.💾 How many GB are there in 1 TB?
25. 25.✋ Which can we touch: hardware or software? (a) software (b) hardware
26. 26.True or false: a keyboard is hardware. (a) False (b) True
27. 27.True or false: RAM loses data when off. (a) True (b) False
28. 28.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Delete (c) Print (d) Undo
29. 29.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) copy (c) redo (d) print
30. 30.🔍 Which is the odd one out? (a) monitor (b) speaker (c) memory card (d) projector
31. 31.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Cut (c) Copy (d) Undo
32. 32.💾 Which is bigger: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
33. 33.True or false: a keyboard is an input device. (a) False (b) True
34. 34.Which of these is hardware? (a) a scanner (b) an operating system (c) a paint program (d) a music player app
35. 35.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
36. 36.Which shortcut do we press to cut? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+C (d) Ctrl+X
37. 37.💾 Which is smaller: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
38. 38.Which file ending is a picture? (a) .txt (b) .mp3 (c) .mkv (d) .jpg
39. 39.True or false: to rename a file means to change its name. (a) True (b) False
40. 40.True or false: a printer is software. (a) True (b) False

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