Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 662 · 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 smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
2. 2.What does it mean to rename a file? (a) see what is inside (b) put it in another place (c) change its name (d) throw it away
3. 3.Which shortcut do we press to paste? (a) Ctrl+P (b) Ctrl+A (c) Ctrl+V (d) Ctrl+C
4. 4.Which of these is an input device? (a) speaker (b) projector (c) keyboard (d) hard disk
5. 5.True or false: to delete a file means to get rid of it. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a paint program (b) a mouse (c) a printer (d) a speaker
7. 7.📄 What does a word processor help us do? (a) cook food (b) fly a kite (c) type and edit text (d) water plants
8. 8.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+F (d) Ctrl+U
9. 9.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
10. 10.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
11. 11.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
12. 12.Which of these is hardware? (a) a music player app (b) a typing tutor (c) a webcam (d) a web browser
13. 13.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device
14. 14.🔍 Which is the odd one out? (a) a pen drive (b) a speaker (c) a mouse (d) a typing tutor
15. 15.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) delete (c) print (d) select
16. 16.💾 Which is smaller: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
17. 17.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
18. 18.Which of these is an output device? (a) memory card (b) pen drive (c) solid-state drive (d) monitor
19. 19.🔍 Which is the odd one out? (a) microphone (b) memory card (c) scanner (d) keyboard
20. 20.What does it mean to copy a file? (a) see what is inside (b) make an exact twin (c) get rid of it (d) change its name
21. 21.🏷️ Every file has a ___ so we can find it. (a) name (b) weight (c) smell (d) taste
22. 22.💾 How many MB are there in 2 GB?
23. 23.Which of these is software? (a) a paint program (b) a keyboard (c) a hard disk (d) a speaker
24. 24.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
25. 25.True or false: to rename a file means to change its name. (a) False (b) True
26. 26.📄 A file name ends in .gif. What is it most likely? (a) a video (b) a document (c) a picture (d) a sound
27. 27.💾 Which is smaller: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
28. 28.True or false: a printer is hardware. (a) False (b) True
29. 29.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) is temporary memory (c) is the working memory (d) keeps your saved files
30. 30.💾 How many bits are there in 4 bytes?
31. 31.True or false: to rename a file means to give it a new name. (a) False (b) True
32. 32.🧰 Is a hard disk a storage, input or output device? (a) an input device (b) an output device (c) a storage device
33. 33.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) GB (d) byte
34. 34.💾 How many bytes are there in 2 KB?
35. 35.💾 How many KB are there in 2 MB?
36. 36.🧩 Is a monitor hardware or software? (a) hardware (b) software
37. 37.📄 A file name ends in .wav. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
38. 38.💾 How many GB are there in 1 TB?
39. 39.Which of these is software? (a) a mouse (b) a pen drive (c) a typing tutor (d) a printer
40. 40.💾 How many KB are there in 4 MB?

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