Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 564 · 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 file ending is a video? (a) .png (b) .txt (c) .pdf (d) .mp4
2. 2.True or false: a paint program is hardware. (a) True (b) False
3. 3.True or false: a keyboard is software. (a) False (b) True
4. 4.True or false: a hard disk is a storage device. (a) False (b) True
5. 5.🧩 Is a monitor hardware or software? (a) software (b) hardware
6. 6.Which of these is software? (a) a music player app (b) a speaker (c) a webcam (d) a keyboard
7. 7.💾 Which is bigger: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
8. 8.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
9. 9.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
10. 10.🧩 Is a webcam hardware or software? (a) hardware (b) software
11. 11.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
12. 12.🧰 Is a memory card a storage, input or output device? (a) an input device (b) a storage device (c) an output device
13. 13.What does it mean to delete a file? (a) keep your work for later (b) make a brand-new one (c) throw it away (d) see what is inside
14. 14.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) KB (d) bit
15. 15.🧩 Is a hard disk hardware or software? (a) hardware (b) software
16. 16.📁 Which word means to “put it in another place” (for a file or folder)? (a) create (b) rename (c) save (d) move
17. 17.Which of these is hardware? (a) a mouse (b) a web browser (c) a paint program (d) a calculator app
18. 18.🧾 Software is a set of ___ for the computer. (a) screws (b) buttons (c) instructions (d) wires
19. 19.⌨️ In a word processor, what does Ctrl+A do? (a) cut (b) select all (c) copy (d) redo
20. 20.Which shortcut do we press to print? (a) Ctrl+X (b) Ctrl+P (c) Ctrl+C (d) Ctrl+A
21. 21.📁 Which word means to “make an exact twin” (for a file or folder)? (a) delete (b) copy (c) rename (d) create
22. 22.💾 How many bytes are there in 1 KB?
23. 23.Which of these is hardware? (a) a computer game (b) a word processor (c) a paint program (d) a monitor
24. 24.💾 How many bytes are there in 4 KB?
25. 25.True or false: a paint program is software. (a) True (b) False
26. 26.💾 Which is smaller: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
27. 27.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Delete (c) Backspace (d) Copy
28. 28.⌨️ In a word processor, what does Ctrl+Z do? (a) copy (b) paste (c) cut (d) undo
29. 29.🔍 Which is the odd one out? (a) a pen drive (b) a word processor (c) a calculator app (d) a web browser
30. 30.Which of these is software? (a) a printer (b) a speaker (c) a web browser (d) a monitor
31. 31.What does it mean to rename a file? (a) throw it away (b) change its name (c) get rid of it (d) put it in another place
32. 32.🧩 Is a printer hardware or software? (a) software (b) hardware
33. 33.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) print (c) delete (d) select
34. 34.Which file ending is a document? (a) .mp4 (b) .pdf (c) .gif (d) .mkv
35. 35.Which file ending is a picture? (a) .txt (b) .mp4 (c) .mkv (d) .png
36. 36.What does it mean to create a file? (a) store your work (b) change its name (c) see what is inside (d) make a brand-new one
37. 37.💾 Which is bigger: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
38. 38.⌨️ In a word processor, what does Ctrl+S do? (a) paste (b) save (c) copy (d) undo
39. 39.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
40. 40.▌ What is the blinking line that shows where you will type? (a) the icon (b) the toolbar (c) the cursor (d) the folder

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