Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 78 · 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 TB or 1 MB? (a) 1 TB (b) 1 MB
2. 2.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+C (d) Ctrl+P
3. 3.True or false: to save a file means to throw it away. (a) True (b) False
4. 4.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) bit (d) KB
5. 5.▌ What is the blinking line that shows where you will type? (a) the toolbar (b) the folder (c) the icon (d) the cursor
6. 6.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
7. 7.Which file ending is a picture? (a) .wav (b) .png (c) .avi (d) .pdf
8. 8.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) RAM (d) the hard disk
9. 9.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) save (c) paste (d) redo
10. 10.True or false: Ctrl+Z is the shortcut to paste. (a) False (b) True
11. 11.🏷️ Every file has a ___ so we can find it. (a) weight (b) name (c) smell (d) taste
12. 12.💾 Which is bigger: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
13. 13.🔍 Which is the odd one out? (a) a pen drive (b) a webcam (c) a monitor (d) a web browser
14. 14.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
15. 15.True or false: a projector is an input device. (a) False (b) True
16. 16.💾 How many bytes are there in 1 KB?
17. 17.🧾 Software is a set of ___ for the computer. (a) instructions (b) screws (c) buttons (d) wires
18. 18.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Save (c) Undo (d) Copy
19. 19.💾 Which is smaller: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
20. 20.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a speaker (c) a mouse (d) a pixel
21. 21.True or false: a paint program is hardware. (a) True (b) False
22. 22.🧩 Is a paint program hardware or software? (a) software (b) hardware
23. 23.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
24. 24.Which of these is true of RAM? (a) keeps photos for years (b) loses data when off (c) is permanent storage (d) keeps your saved files
25. 25.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
26. 26.What does it mean to create a file? (a) change its name (b) make a brand-new one (c) throw it away (d) put it in another place
27. 27.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
28. 28.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+U (c) Ctrl+I (d) Ctrl+F
29. 29.True or false: to rename a file means to give it a new name. (a) False (b) True
30. 30.Which shortcut do we press to save? (a) Ctrl+P (b) Ctrl+S (c) Ctrl+V (d) Ctrl+X
31. 31.⌨️ In a word processor, what does Ctrl+C do? (a) redo (b) copy (c) print (d) undo
32. 32.✋ Which can we touch: hardware or software? (a) hardware (b) software
33. 33.🧩 Is a mouse hardware or software? (a) software (b) hardware
34. 34.True or false: to move a file means to keep your work for later. (a) False (b) True
35. 35.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) holds apps that are open (c) is the working memory (d) keeps data when off
36. 36.💾 How many MB are there in 2 GB?
37. 37.Which of these is hardware? (a) a calculator app (b) an operating system (c) a printer (d) a web browser
38. 38.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
39. 39.🧩 Is a pen drive hardware or software? (a) software (b) hardware
40. 40.True or false: RAM holds apps that are open. (a) False (b) True

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