Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 752 · 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 storage (like a hard disk)? (a) is the working memory (b) holds apps that are open (c) keeps photos for years (d) loses data when off
2. 2.True or false: Ctrl+Y is the shortcut to select all. (a) False (b) True
3. 3.True or false: a memory card is a storage device. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a keyboard (b) a speaker (c) a word processor (d) a webcam
5. 5.💾 How many bits are there in 2 bytes?
6. 6.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Delete (c) Copy (d) Redo
7. 7.✋ Which can we touch: hardware or software? (a) hardware (b) software
8. 8.🧾 Software is a set of ___ for the computer. (a) screws (b) wires (c) buttons (d) instructions
9. 9.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
10. 10.True or false: a scanner is software. (a) True (b) False
11. 11.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
12. 12.💾 Which is smaller: 1 TB or 1 MB? (a) 1 MB (b) 1 TB
13. 13.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a speaker (c) a mouse (d) a folder
14. 14.💾 How many KB are there in 1 MB?
15. 15.True or false: a word processor is hardware. (a) True (b) False
16. 16.Which file ending is a sound? (a) .avi (b) .jpg (c) .mp3 (d) .pdf
17. 17.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) paste (c) copy (d) undo
18. 18.🧩 Is a printer hardware or software? (a) software (b) hardware
19. 19.🏷️ Every file has a ___ so we can find it. (a) name (b) weight (c) smell (d) taste
20. 20.True or false: a mouse is software. (a) False (b) True
21. 21.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
22. 22.Which of these is true of RAM? (a) is permanent storage (b) keeps data when off (c) keeps photos for years (d) is the working memory
23. 23.Which of these is hardware? (a) a printer (b) a word processor (c) a computer game (d) a music player app
24. 24.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
25. 25.🧩 Is a paint program hardware or software? (a) software (b) hardware
26. 26.Which of these is an input device? (a) pen drive (b) keyboard (c) monitor (d) speaker
27. 27.💾 Which is bigger: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
28. 28.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
29. 29.🔍 Which is the odd one out? (a) a hard disk (b) a paint program (c) a webcam (d) a speaker
30. 30.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
31. 31.📁 What do we call a folder inside another folder? (a) an icon (b) a printer (c) a big file (d) a subfolder
32. 32.Which of these is hardware? (a) a word processor (b) an operating system (c) a scanner (d) a typing tutor
33. 33.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) save (b) rename (c) create (d) delete
34. 34.Which shortcut do we press to undo? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+V (d) Ctrl+Y
35. 35.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
36. 36.📄 A file name ends in .wav. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
37. 37.True or false: to delete a file means to store your work. (a) False (b) True
38. 38.⌨️ In a word processor, what does Ctrl+X do? (a) select all (b) undo (c) print (d) cut
39. 39.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) undo (c) copy (d) paste
40. 40.🔍 Which is the odd one out? (a) a mouse (b) a music player app (c) a scanner (d) a pen drive

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