Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 742 · 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 of these is true of RAM? (a) keeps data when off (b) keeps photos for years (c) holds apps that are open (d) keeps your saved files
2. 2.🧰 Is a printer a storage, input or output device? (a) an output device (b) an input device (c) a storage device
3. 3.🔍 Which is the odd one out? (a) a music player app (b) a hard disk (c) a pen drive (d) a webcam
4. 4.True or false: Ctrl+P is the shortcut to cut. (a) False (b) True
5. 5.Which file ending is a sound? (a) .gif (b) .mp3 (c) .mkv (d) .txt
6. 6.🏷️ Every file has a ___ so we can find it. (a) smell (b) weight (c) name (d) taste
7. 7.💾 How many bytes are there in 4 KB?
8. 8.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
9. 9.📷 A camera keeps its photos on a small ___. (a) speaker (b) memory card (c) mouse pad (d) keyboard
10. 10.💾 How many bits are there in 8 bytes?
11. 11.🧩 Is a computer game hardware or software? (a) hardware (b) software
12. 12.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) save (c) delete (d) select
13. 13.💾 Which is smaller: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
14. 14.Which of these is hardware? (a) a calculator app (b) an operating system (c) a webcam (d) a computer game
15. 15.💾 How many bits are there in 11 bytes?
16. 16.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
17. 17.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
18. 18.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
19. 19.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
20. 20.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
21. 21.💾 Which is smaller: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
22. 22.Which of these is an input device? (a) projector (b) microphone (c) pen drive (d) monitor
23. 23.🔍 Which is the odd one out? (a) a monitor (b) a pen drive (c) a web browser (d) a keyboard
24. 24.💾 How many MB are there in 3 GB?
25. 25.✋ Which can we touch: hardware or software? (a) software (b) hardware
26. 26.What does it mean to copy a file? (a) put it in another place (b) make an exact twin (c) make a brand-new one (d) get rid of it
27. 27.Which of these is hardware? (a) a calculator app (b) a computer game (c) a speaker (d) an operating system
28. 28.💾 How many bits are there in 3 bytes?
29. 29.📄 What does a word processor help us do? (a) fly a kite (b) type and edit text (c) cook food (d) water plants
30. 30.🧩 Is a mouse hardware or software? (a) software (b) hardware
31. 31.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) RAM (c) the memory card (d) the hard disk
32. 32.True or false: to move a file means to change its name. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a monitor (b) a pen drive (c) a webcam (d) an operating system
34. 34.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Cut (d) Copy
35. 35.💾 Which is smaller: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
36. 36.💾 How many KB are there in 2 MB?
37. 37.True or false: a speaker is an input device. (a) True (b) False
38. 38.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
39. 39.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
40. 40.True or false: RAM loses data when off. (a) False (b) True

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