Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 455 · 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 a storage device? (a) mouse (b) memory card (c) projector (d) microphone
2. 2.💾 How many MB are there in 2 GB?
3. 3.True or false: Ctrl+S is the shortcut to select all. (a) False (b) True
4. 4.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) bit (d) KB
5. 5.✋ Which can we touch: hardware or software? (a) hardware (b) software
6. 6.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Delete (c) Copy (d) Cut
7. 7.🧩 Is a web browser hardware or software? (a) software (b) hardware
8. 8.🔍 Which is the odd one out? (a) a word processor (b) a pen drive (c) a hard disk (d) a printer
9. 9.🔍 Which is the odd one out? (a) a paint program (b) a webcam (c) a word processor (d) a typing tutor
10. 10.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
11. 11.💾 Which is smaller: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
12. 12.Which shortcut do we press to paste? (a) Ctrl+P (b) Ctrl+S (c) Ctrl+V (d) Ctrl+Y
13. 13.📄 What does a word processor help us do? (a) water plants (b) type and edit text (c) fly a kite (d) cook food
14. 14.⌨️ In a word processor, what does Ctrl+X do? (a) undo (b) cut (c) redo (d) save
15. 15.True or false: a paint program is hardware. (a) True (b) False
16. 16.True or false: a scanner is hardware. (a) False (b) True
17. 17.⌨️ In a word processor, what does Ctrl+Y do? (a) select all (b) paste (c) copy (d) redo
18. 18.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 1 (d) 2
19. 19.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
20. 20.🧩 Is a paint program hardware or software? (a) software (b) hardware
21. 21.🏷️ Every file has a ___ so we can find it. (a) smell (b) name (c) weight (d) taste
22. 22.💾 Which is bigger: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
23. 23.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+I (c) Ctrl+B (d) Ctrl+F
24. 24.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
25. 25.📁 What do we call a folder inside another folder? (a) a big file (b) a printer (c) an icon (d) a subfolder
26. 26.💾 Which is bigger: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
27. 27.🔍 Which is the odd one out? (a) pen drive (b) scanner (c) hard disk (d) memory card
28. 28.True or false: a scanner is an input device. (a) True (b) False
29. 29.True or false: Ctrl+C is the shortcut to redo. (a) True (b) False
30. 30.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
31. 31.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
32. 32.🧩 Is a monitor hardware or software? (a) hardware (b) software
33. 33.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) instructions (d) buttons
34. 34.Which shortcut do we press to copy? (a) Ctrl+Y (b) Ctrl+V (c) Ctrl+C (d) Ctrl+P
35. 35.📄 A file name ends in .avi. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
36. 36.Which of these is software? (a) a hard disk (b) a webcam (c) a speaker (d) a music player app
37. 37.True or false: to delete a file means to see what is inside. (a) False (b) True
38. 38.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
39. 39.True or false: a mouse is software. (a) True (b) False
40. 40.🧩 Is a music player app hardware or software? (a) hardware (b) software

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