Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 769 · 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 the odd one out? (a) keyboard (b) monitor (c) mouse (d) microphone
2. 2.💾 Which is smaller: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
3. 3.💡 What is the smallest unit of computer memory? (a) bit (b) byte (c) GB (d) KB
4. 4.🔍 Which is the odd one out? (a) a paint program (b) a music player app (c) a scanner (d) a web browser
5. 5.Which of these is true of RAM? (a) keeps your saved files (b) keeps data when off (c) is the working memory (d) keeps photos for years
6. 6.True or false: to save a file means to store your work. (a) True (b) False
7. 7.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) water plants (d) type and edit text
8. 8.💾 How many bits are there in 1 byte?
9. 9.💾 Which is bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
10. 10.What does it mean to delete a file? (a) change its name (b) throw it away (c) keep your work for later (d) put it in another place
11. 11.Which of these is software? (a) a webcam (b) a paint program (c) a hard disk (d) a monitor
12. 12.Which of these is hardware? (a) a speaker (b) a web browser (c) a music player app (d) a typing tutor
13. 13.📁 Which word means to “get rid of it” (for a file or folder)? (a) save (b) rename (c) open (d) delete
14. 14.✋ Which can we touch: hardware or software? (a) software (b) hardware
15. 15.💾 How many MB are there in 3 GB?
16. 16.True or false: a calculator app is hardware. (a) True (b) False
17. 17.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+V
18. 18.True or false: a music player app is software. (a) True (b) False
19. 19.💾 How many bits are there in 2 bytes?
20. 20.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) cut (c) print (d) redo
21. 21.Which file ending is a video? (a) .gif (b) .pdf (c) .jpg (d) .avi
22. 22.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 9 (d) 1
23. 23.True or false: Ctrl+Z is the shortcut to paste. (a) True (b) False
24. 24.⌨️ In a word processor, what does Ctrl+X do? (a) print (b) undo (c) cut (d) redo
25. 25.Which shortcut do we press to save? (a) Ctrl+C (b) Ctrl+S (c) Ctrl+A (d) Ctrl+P
26. 26.Which of these is software? (a) a keyboard (b) a mouse (c) a word processor (d) a pen drive
27. 27.📁 What do we call a folder inside another folder? (a) a subfolder (b) a big file (c) an icon (d) a printer
28. 28.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
29. 29.💾 How many bits are there in 7 bytes?
30. 30.Which of these is a storage device? (a) monitor (b) hard disk (c) scanner (d) keyboard
31. 31.True or false: a webcam is hardware. (a) False (b) True
32. 32.📁 Which word means to “store your work” (for a file or folder)? (a) delete (b) create (c) save (d) rename
33. 33.🔍 Which is the odd one out? (a) speaker (b) mouse (c) monitor (d) projector
34. 34.🔍 Which is the odd one out? (a) a mouse (b) an operating system (c) a printer (d) a hard disk
35. 35.⌨️ In a word processor, what does Ctrl+P do? (a) undo (b) print (c) paste (d) copy
36. 36.💾 How many MB are there in 1 GB?
37. 37.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
38. 38.What does it mean to copy a file? (a) throw it away (b) keep your work for later (c) make an exact twin (d) store your work
39. 39.Which shortcut do we press to copy? (a) Ctrl+P (b) Ctrl+V (c) Ctrl+C (d) Ctrl+A
40. 40.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit

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