Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 547 · 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 sound? (a) .mp3 (b) .gif (c) .mp4 (d) .mkv
2. 2.💾 Which is bigger: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
3. 3.💾 How many bytes are there in 4 KB?
4. 4.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a pixel (c) a mouse (d) a folder
5. 5.⌨️ In a word processor, what does Ctrl+Z do? (a) cut (b) print (c) save (d) undo
6. 6.🏷️ Every file has a ___ so we can find it. (a) taste (b) weight (c) smell (d) name
7. 7.💾 Which is bigger: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
8. 8.Which of these is an output device? (a) scanner (b) keyboard (c) projector (d) hard disk
9. 9.🔍 Which is the odd one out? (a) a hard disk (b) a word processor (c) a scanner (d) a pen drive
10. 10.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the pen drive (d) the hard disk
11. 11.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
12. 12.True or false: RAM keeps data when off. (a) False (b) True
13. 13.Which of these is hardware? (a) an operating system (b) a scanner (c) a calculator app (d) a paint program
14. 14.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Undo (c) Delete (d) Print
15. 15.💾 Which is smaller: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
16. 16.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
17. 17.💾 Which is bigger: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
18. 18.Which of these is true of RAM? (a) loses data when off (b) keeps data when off (c) keeps photos for years (d) is permanent storage
19. 19.📁 Which word means to “get rid of it” (for a file or folder)? (a) copy (b) delete (c) save (d) move
20. 20.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
21. 21.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) select (c) save (d) delete
22. 22.True or false: to create a file means to keep your work for later. (a) False (b) True
23. 23.Which of these is software? (a) a word processor (b) a scanner (c) a webcam (d) a hard disk
24. 24.📷 A camera keeps its photos on a small ___. (a) speaker (b) memory card (c) keyboard (d) mouse pad
25. 25.▌ What is the blinking line that shows where you will type? (a) the cursor (b) the folder (c) the toolbar (d) the icon
26. 26.True or false: Ctrl+V is the shortcut to cut. (a) False (b) True
27. 27.⚡ Which is faster for the computer to work with? (a) a memory card (b) RAM (c) a printer (d) a pen drive
28. 28.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
29. 29.Which file ending is a document? (a) .gif (b) .txt (c) .avi (d) .mkv
30. 30.True or false: RAM is the working memory. (a) False (b) True
31. 31.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
32. 32.💾 Which is smaller: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
33. 33.True or false: RAM is permanent storage. (a) True (b) False
34. 34.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
35. 35.True or false: a keyboard is an output device. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a monitor (b) a hard disk (c) a webcam (d) a music player app
37. 37.Which file ending is a video? (a) .gif (b) .png (c) .avi (d) .mp3
38. 38.Which of these is hardware? (a) a hard disk (b) a music player app (c) a word processor (d) a web browser
39. 39.💾 Which is bigger: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
40. 40.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False

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