Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 827 · 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 bit or 1 MB? (a) 1 bit (b) 1 MB
2. 2.🧩 Is a hard disk hardware or software? (a) hardware (b) software
3. 3.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) copy (c) create (d) move
4. 4.True or false: a mouse is hardware. (a) False (b) True
5. 5.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) the hard disk (d) RAM
6. 6.🔍 Which is the odd one out? (a) a typing tutor (b) a monitor (c) a webcam (d) a mouse
7. 7.💾 Which is bigger: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
8. 8.Which file ending is a sound? (a) .pdf (b) .avi (c) .mp3 (d) .jpg
9. 9.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
10. 10.⌨️ In a word processor, what does Ctrl+V do? (a) select all (b) paste (c) undo (d) redo
11. 11.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
12. 12.True or false: RAM keeps data when off. (a) True (b) False
13. 13.True or false: to delete a file means to change its name. (a) False (b) True
14. 14.True or false: a hard disk is hardware. (a) True (b) False
15. 15.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
16. 16.What does it mean to save a file? (a) keep your work for later (b) throw it away (c) give it a new name (d) get rid of it
17. 17.▌ What is the blinking line that shows where you will type? (a) the icon (b) the toolbar (c) the cursor (d) the folder
18. 18.⌨️ In a word processor, what does Ctrl+A do? (a) print (b) select all (c) paste (d) undo
19. 19.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
20. 20.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) holds apps that are open (c) is the working memory (d) keeps data when off
21. 21.🔍 Which is the odd one out? (a) memory card (b) microphone (c) keyboard (d) scanner
22. 22.🔍 Which is the odd one out? (a) pen drive (b) printer (c) solid-state drive (d) hard disk
23. 23.⌨️ In a word processor, what does Ctrl+Y do? (a) paste (b) save (c) redo (d) undo
24. 24.💾 Which is smaller: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
25. 25.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) copy (c) select all (d) cut
26. 26.💾 How many GB are there in 1 TB?
27. 27.💾 How many bits are there in 9 bytes?
28. 28.💾 Which is smaller: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
29. 29.🧩 Is a scanner hardware or software? (a) software (b) hardware
30. 30.🔍 Which is the odd one out? (a) pen drive (b) solid-state drive (c) mouse (d) hard disk
31. 31.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) copy (c) save (d) paste
32. 32.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
33. 33.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
34. 34.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Delete (c) Backspace (d) Copy
35. 35.Which file ending is a video? (a) .gif (b) .wav (c) .avi (d) .mp3
36. 36.🧩 Is a mouse hardware or software? (a) software (b) hardware
37. 37.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) cut (c) undo (d) paste
38. 38.Which of these is software? (a) a webcam (b) a keyboard (c) an operating system (d) a speaker
39. 39.Which file ending is a picture? (a) .pdf (b) .mp3 (c) .wav (d) .gif
40. 40.Which of these is an input device? (a) projector (b) keyboard (c) solid-state drive (d) pen drive

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