Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 413 · 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 shortcut do we press to save? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+S (d) Ctrl+Z
2. 2.Which shortcut do we press to paste? (a) Ctrl+C (b) Ctrl+S (c) Ctrl+V (d) Ctrl+P
3. 3.True or false: RAM loses data when off. (a) False (b) True
4. 4.True or false: a webcam is software. (a) True (b) False
5. 5.✋ Which can we touch: hardware or software? (a) hardware (b) software
6. 6.💾 How many bytes are there in 1 KB?
7. 7.🧰 Is a hard disk a storage, input or output device? (a) a storage device (b) an input device (c) an output device
8. 8.🔍 Which is the odd one out? (a) monitor (b) keyboard (c) mouse (d) microphone
9. 9.True or false: a mouse is software. (a) False (b) True
10. 10.Which of these is software? (a) an operating system (b) a mouse (c) a monitor (d) a scanner
11. 11.📁 Which word means to “change its name” (for a file or folder)? (a) copy (b) rename (c) delete (d) save
12. 12.Which file ending is a document? (a) .mp3 (b) .txt (c) .wav (d) .avi
13. 13.🧩 Is a speaker hardware or software? (a) software (b) hardware
14. 14.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
15. 15.🧩 Is a keyboard hardware or software? (a) software (b) hardware
16. 16.Which of these is an output device? (a) scanner (b) pen drive (c) printer (d) solid-state drive
17. 17.▌ What is the blinking line that shows where you will type? (a) the folder (b) the icon (c) the cursor (d) the toolbar
18. 18.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) speaker (d) keyboard
19. 19.💾 How many bytes are there in 4 KB?
20. 20.Which shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+X (c) Ctrl+S (d) Ctrl+Y
21. 21.🧩 Is a pen drive hardware or software? (a) hardware (b) software
22. 22.🔍 Which is the odd one out? (a) hard disk (b) monitor (c) speaker (d) projector
23. 23.🔍 Which is the odd one out? (a) microphone (b) scanner (c) mouse (d) projector
24. 24.📄 A file name ends in .avi. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
25. 25.💾 Which is smaller: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
26. 26.Which of these is hardware? (a) a webcam (b) a web browser (c) a typing tutor (d) a calculator app
27. 27.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) delete (c) select (d) print
28. 28.📄 A file name ends in .png. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
29. 29.True or false: a pen drive is software. (a) True (b) False
30. 30.True or false: a memory card is an input device. (a) True (b) False
31. 31.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
32. 32.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 2 (d) 1
33. 33.👩‍💻 What do we call people who write software? (a) plumbers (b) programmers (c) farmers (d) tailors
34. 34.True or false: an operating system is hardware. (a) True (b) False
35. 35.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
36. 36.True or false: a pen drive is an input device. (a) False (b) True
37. 37.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Cut (c) Delete (d) Copy
38. 38.True or false: Ctrl+Y is the shortcut to print. (a) False (b) True
39. 39.🧰 Is a projector a storage, input or output device? (a) an output device (b) a storage device (c) an input device
40. 40.Which of these is true of storage (like a hard disk)? (a) keeps photos for years (b) is temporary memory (c) is the working memory (d) holds apps that are open

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