Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 862 · 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 video? (a) .png (b) .avi (c) .wav (d) .mp3
2. 2.True or false: a solid-state drive is a storage device. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a keyboard (b) a word processor (c) a hard disk (d) a webcam
4. 4.Which of these is an input device? (a) monitor (b) hard disk (c) pen drive (d) mouse
5. 5.True or false: to create a file means to change its name. (a) True (b) False
6. 6.Which of these is hardware? (a) a calculator app (b) a word processor (c) a webcam (d) a web browser
7. 7.🧩 Is a printer hardware or software? (a) hardware (b) software
8. 8.💾 How many bits are there in 10 bytes?
9. 9.True or false: a word processor is software. (a) False (b) True
10. 10.Which shortcut do we press to redo? (a) Ctrl+Z (b) Ctrl+A (c) Ctrl+P (d) Ctrl+Y
11. 11.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) is the working memory (c) holds apps that are open (d) loses data when off
12. 12.Which file ending is a video? (a) .pdf (b) .gif (c) .txt (d) .mkv
13. 13.Which of these is hardware? (a) a music player app (b) a web browser (c) a paint program (d) a keyboard
14. 14.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) bit (d) byte
15. 15.True or false: a scanner is software. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) memory card (b) monitor (c) pen drive (d) solid-state drive
17. 17.📄 What does a word processor help us do? (a) water plants (b) cook food (c) fly a kite (d) type and edit text
18. 18.🔍 Which is the odd one out? (a) a scanner (b) an operating system (c) a webcam (d) a monitor
19. 19.🧩 Is a keyboard hardware or software? (a) hardware (b) software
20. 20.True or false: Ctrl+A is the shortcut to undo. (a) True (b) False
21. 21.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) copy (c) paste (d) select all
22. 22.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
23. 23.🧩 Is a speaker hardware or software? (a) software (b) hardware
24. 24.True or false: Ctrl+V is the shortcut to undo. (a) False (b) True
25. 25.Which of these is hardware? (a) an operating system (b) a calculator app (c) a paint program (d) a monitor
26. 26.🔍 Which is the odd one out? (a) a hard disk (b) a mouse (c) a keyboard (d) a computer game
27. 27.True or false: a mouse is hardware. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) memory card (b) speaker (c) printer (d) projector
29. 29.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
30. 30.🔍 Which is the odd one out? (a) a printer (b) a webcam (c) a web browser (d) a keyboard
31. 31.True or false: to copy a file means to see what is inside. (a) False (b) True
32. 32.True or false: a monitor is software. (a) False (b) True
33. 33.Which of these is an input device? (a) printer (b) scanner (c) projector (d) solid-state drive
34. 34.True or false: a pen drive is an output device. (a) True (b) False
35. 35.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) keeps photos for years (c) is temporary memory (d) is the working memory
36. 36.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) rename (b) open (c) create (d) copy
37. 37.🧩 Is a calculator app hardware or software? (a) hardware (b) software
38. 38.Which of these is software? (a) a pen drive (b) a monitor (c) a paint program (d) a mouse
39. 39.💾 Which is bigger: 1 KB or 1 MB? (a) 1 MB (b) 1 KB
40. 40.Which file ending is a document? (a) .jpg (b) .gif (c) .txt (d) .wav

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