Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 251 · 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 is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
2. 2.📄 A file name ends in .wav. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
3. 3.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) is the working memory (c) loses data when off (d) keeps photos for years
4. 4.Which file ending is a picture? (a) .wav (b) .mp4 (c) .gif (d) .mkv
5. 5.💾 How many MB are there in 3 GB?
6. 6.⌨️ In a word processor, what does Ctrl+Y do? (a) select all (b) print (c) redo (d) paste
7. 7.What does it mean to open a file? (a) get rid of it (b) see what is inside (c) give it a new name (d) put it in another place
8. 8.💾 Which is bigger: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
9. 9.Which of these is an input device? (a) pen drive (b) hard disk (c) scanner (d) memory card
10. 10.Which of these is an input device? (a) speaker (b) monitor (c) hard disk (d) microphone
11. 11.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 2 (d) 5
12. 12.🔍 Which is the odd one out? (a) an operating system (b) a music player app (c) a word processor (d) a hard disk
13. 13.💾 Which is bigger: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
14. 14.💾 Which is bigger: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
15. 15.Which file ending is a sound? (a) .txt (b) .mp4 (c) .wav (d) .gif
16. 16.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) holds apps that are open (c) is permanent storage (d) is temporary memory
17. 17.Which file ending is a picture? (a) .mp4 (b) .jpg (c) .mkv (d) .pdf
18. 18.🔍 Which is the odd one out? (a) a speaker (b) a webcam (c) a scanner (d) a word processor
19. 19.☁️ Saving files on the internet to use from anywhere is called ___. (a) rain storage (b) cloud storage (c) paper storage (d) box storage
20. 20.True or false: a typing tutor is hardware. (a) False (b) True
21. 21.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+F (c) Ctrl+I (d) Ctrl+B
22. 22.True or false: Ctrl+X is the shortcut to paste. (a) False (b) True
23. 23.📄 What does a word processor help us do? (a) type and edit text (b) cook food (c) fly a kite (d) water plants
24. 24.💾 Which is smaller: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
25. 25.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
26. 26.💾 How many GB are there in 2 TB?
27. 27.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
28. 28.💾 Which is smaller: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
29. 29.💾 Which is smaller: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
30. 30.Which of these is hardware? (a) an operating system (b) a computer game (c) a music player app (d) a keyboard
31. 31.True or false: RAM is the working memory. (a) False (b) True
32. 32.📁 What do we call a folder inside another folder? (a) a big file (b) a printer (c) an icon (d) a subfolder
33. 33.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+S (c) Ctrl+V (d) Ctrl+C
34. 34.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
35. 35.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
36. 36.📁 Which word means to “store your work” (for a file or folder)? (a) delete (b) move (c) save (d) rename
37. 37.⌨️ In a word processor, what does Ctrl+S do? (a) select all (b) redo (c) undo (d) save
38. 38.True or false: a web browser is hardware. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a speaker (b) a keyboard (c) a music player app (d) a webcam
40. 40.🔍 Which is the odd one out? (a) projector (b) speaker (c) mouse (d) monitor

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