Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 300 · 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 GB or 1 byte? (a) 1 byte (b) 1 GB
2. 2.True or false: to delete a file means to throw it away. (a) True (b) False
3. 3.Which of these is an output device? (a) memory card (b) hard disk (c) mouse (d) speaker
4. 4.🧩 Is a mouse hardware or software? (a) software (b) hardware
5. 5.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
6. 6.⌨️ In a word processor, what does Ctrl+V do? (a) cut (b) save (c) copy (d) paste
7. 7.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Delete (c) Undo (d) Cut
8. 8.True or false: a speaker is a storage device. (a) True (b) False
9. 9.💾 How many GB are there in 2 TB?
10. 10.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
11. 11.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Cut (d) Redo
12. 12.What does it mean to save a file? (a) store your work (b) put it in another place (c) change its name (d) throw it away
13. 13.Which of these is hardware? (a) a paint program (b) a music player app (c) a word processor (d) a pen drive
14. 14.True or false: to rename a file means to change its name. (a) False (b) True
15. 15.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
16. 16.🧩 Is an operating system hardware or software? (a) hardware (b) software
17. 17.⚡ Which is faster for the computer to work with? (a) a printer (b) a memory card (c) RAM (d) a pen drive
18. 18.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
19. 19.💾 How many bytes are there in 4 KB?
20. 20.True or false: a solid-state drive is an output device. (a) False (b) True
21. 21.🧩 Is a monitor hardware or software? (a) hardware (b) software
22. 22.True or false: a monitor is hardware. (a) True (b) False
23. 23.🧰 Is a printer a storage, input or output device? (a) an input device (b) an output device (c) a storage device
24. 24.💾 Which is smaller: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
25. 25.💾 How many bits are there in 4 bytes?
26. 26.☁️ Saving files on the internet to use from anywhere is called ___. (a) paper storage (b) rain storage (c) cloud storage (d) box storage
27. 27.🧩 Is a web browser hardware or software? (a) software (b) hardware
28. 28.True or false: Ctrl+Y is the shortcut to select all. (a) False (b) True
29. 29.💾 How many KB are there in 3 MB?
30. 30.True or false: a microphone is a storage device. (a) True (b) False
31. 31.⌨️ In a word processor, what does Ctrl+A do? (a) cut (b) select all (c) redo (d) undo
32. 32.Which of these is a storage device? (a) microphone (b) memory card (c) mouse (d) projector
33. 33.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
34. 34.True or false: a microphone is an input device. (a) True (b) False
35. 35.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) type and edit text (d) water plants
36. 36.Which file ending is a picture? (a) .pdf (b) .txt (c) .wav (d) .jpg
37. 37.📷 A camera keeps its photos on a small ___. (a) keyboard (b) speaker (c) memory card (d) mouse pad
38. 38.📄 A file name ends in .mp4. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
39. 39.🔍 Which is the odd one out? (a) mouse (b) projector (c) speaker (d) monitor
40. 40.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) holds apps that are open (c) loses data when off (d) is permanent storage

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