Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 849 · 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.🧾 Software is a set of ___ for the computer. (a) buttons (b) instructions (c) screws (d) wires
2. 2.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
3. 3.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
4. 4.True or false: to open a file means to see what is inside. (a) False (b) True
5. 5.💾 How many MB are there in 2 GB?
6. 6.Which of these is software? (a) a pen drive (b) a webcam (c) a computer game (d) a monitor
7. 7.🧰 Is a printer a storage, input or output device? (a) an input device (b) an output device (c) a storage device
8. 8.Which of these is hardware? (a) a music player app (b) a keyboard (c) a calculator app (d) a word processor
9. 9.📄 A file name ends in .mkv. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
10. 10.What does it mean to create a file? (a) throw it away (b) store your work (c) change its name (d) make a brand-new one
11. 11.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
12. 12.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) delete (b) create (c) rename (d) open
13. 13.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
14. 14.Which shortcut do we press to undo? (a) Ctrl+X (b) Ctrl+Y (c) Ctrl+Z (d) Ctrl+V
15. 15.📄 What does a word processor help us do? (a) water plants (b) fly a kite (c) cook food (d) type and edit text
16. 16.🧩 Is a printer hardware or software? (a) software (b) hardware
17. 17.💾 How many MB are there in 1 GB?
18. 18.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
19. 19.💾 Which is bigger: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
20. 20.True or false: a printer is hardware. (a) False (b) True
21. 21.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
22. 22.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
23. 23.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) the hard disk (d) RAM
24. 24.True or false: a projector is an output device. (a) False (b) True
25. 25.Which of these is true of RAM? (a) holds apps that are open (b) is permanent storage (c) keeps your saved files (d) keeps data when off
26. 26.True or false: a hard disk is an input device. (a) True (b) False
27. 27.True or false: to delete a file means to throw it away. (a) True (b) False
28. 28.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+A (d) Ctrl+Z
29. 29.▌ What is the blinking line that shows where you will type? (a) the folder (b) the cursor (c) the icon (d) the toolbar
30. 30.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Delete (c) Copy (d) Undo
31. 31.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
32. 32.True or false: a mouse is software. (a) False (b) True
33. 33.What does it mean to delete a file? (a) keep your work for later (b) see what is inside (c) make a brand-new one (d) throw it away
34. 34.🔍 Which is the odd one out? (a) a keyboard (b) a word processor (c) a paint program (d) a music player app
35. 35.Which file ending is a picture? (a) .jpg (b) .mp3 (c) .txt (d) .wav
36. 36.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) redo (c) undo (d) save
37. 37.True or false: a scanner is an input device. (a) False (b) True
38. 38.✋ Which can we touch: hardware or software? (a) software (b) hardware
39. 39.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) save (c) print (d) undo
40. 40.💾 How many bits are there in 4 bytes?

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