Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 613 · 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.🏷️ Every file has a ___ so we can find it. (a) smell (b) weight (c) name (d) taste
2. 2.🖍️ Before we cut or copy text, we must first ___ it. (a) select (b) save (c) print (d) delete
3. 3.📄 A file name ends in .avi. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
4. 4.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) byte (d) GB
5. 5.🔍 Which is the odd one out? (a) a web browser (b) a paint program (c) a word processor (d) a monitor
6. 6.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Copy (c) Delete (d) Backspace
7. 7.💾 Which is bigger: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
8. 8.What does it mean to rename a file? (a) throw it away (b) give it a new name (c) make a brand-new one (d) get rid of it
9. 9.💾 Which is smaller: 1 MB or 1 TB? (a) 1 MB (b) 1 TB
10. 10.📁 Which word means to “throw it away” (for a file or folder)? (a) save (b) create (c) delete (d) rename
11. 11.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) memory card (b) keyboard (c) microphone (d) mouse
13. 13.Which of these is a storage device? (a) mouse (b) pen drive (c) printer (d) scanner
14. 14.🧩 Is a keyboard hardware or software? (a) hardware (b) software
15. 15.Which of these is hardware? (a) a paint program (b) a computer game (c) a webcam (d) an operating system
16. 16.🧰 Is a microphone a storage, input or output device? (a) a storage device (b) an input device (c) an output device
17. 17.🧩 Is a scanner hardware or software? (a) software (b) hardware
18. 18.🧩 Is a music player app hardware or software? (a) software (b) hardware
19. 19.Which of these is software? (a) a hard disk (b) a mouse (c) a scanner (d) a word processor
20. 20.True or false: to rename a file means to give it a new name. (a) True (b) False
21. 21.Which file ending is a video? (a) .txt (b) .mp4 (c) .wav (d) .mp3
22. 22.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
23. 23.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
24. 24.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
25. 25.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
26. 26.💾 How many bytes are there in 1 KB?
27. 27.😮 You deleted a word by mistake. What brings it back? (a) Undo (b) Copy (c) Save (d) Cut
28. 28.🧩 Is a pen drive hardware or software? (a) software (b) hardware
29. 29.Which of these is software? (a) a hard disk (b) a mouse (c) a typing tutor (d) a monitor
30. 30.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 2 (d) 5
31. 31.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
32. 32.Which file ending is a document? (a) .mkv (b) .mp4 (c) .avi (d) .txt
33. 33.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
34. 34.Which file ending is a picture? (a) .avi (b) .gif (c) .mkv (d) .mp4
35. 35.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
36. 36.🔍 Which is the odd one out? (a) a computer game (b) an operating system (c) a typing tutor (d) a hard disk
37. 37.💾 Which is bigger: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
38. 38.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+X
39. 39.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
40. 40.📁 Which word means to “see what is inside” (for a file or folder)? (a) delete (b) create (c) rename (d) open

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