Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 783 · 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.True or false: a microphone is an input device. (a) False (b) True
2. 2.💾 How many bits are there in 10 bytes?
3. 3.Which of these is hardware? (a) a printer (b) a computer game (c) an operating system (d) a calculator app
4. 4.True or false: Ctrl+P is the shortcut to redo. (a) True (b) False
5. 5.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the hard disk (c) the pen drive (d) RAM
6. 6.Which shortcut do we press to cut? (a) Ctrl+Y (b) Ctrl+S (c) Ctrl+X (d) Ctrl+Z
7. 7.💾 How many GB are there in 2 TB?
8. 8.💾 How many bytes are there in 4 KB?
9. 9.💾 How many MB are there in 2 GB?
10. 10.True or false: to rename a file means to make an exact twin. (a) True (b) False
11. 11.Which file ending is a video? (a) .jpg (b) .png (c) .mp4 (d) .mp3
12. 12.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
13. 13.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
14. 14.💾 Which is bigger: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
15. 15.📄 What does a word processor help us do? (a) cook food (b) fly a kite (c) water plants (d) type and edit text
16. 16.👩‍💻 What do we call people who write software? (a) farmers (b) programmers (c) plumbers (d) tailors
17. 17.🧩 Is a scanner hardware or software? (a) hardware (b) software
18. 18.📄 A file name ends in .pdf. What is it most likely? (a) a picture (b) a video (c) a sound (d) a document
19. 19.🧰 Is a pen drive a storage, input or output device? (a) an input device (b) a storage device (c) an output device
20. 20.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Cut (c) Delete (d) Print
21. 21.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
22. 22.📁 Which word means to “put it in another place” (for a file or folder)? (a) rename (b) open (c) delete (d) move
23. 23.True or false: a word processor is software. (a) True (b) False
24. 24.✋ Which can we touch: hardware or software? (a) hardware (b) software
25. 25.📁 Which word means to “make an exact twin” (for a file or folder)? (a) rename (b) copy (c) save (d) delete
26. 26.Which shortcut do we press to copy? (a) Ctrl+P (b) Ctrl+Y (c) Ctrl+A (d) Ctrl+C
27. 27.📁 What do we call a folder inside another folder? (a) a big file (b) a subfolder (c) an icon (d) a printer
28. 28.Which file ending is a video? (a) .txt (b) .gif (c) .pdf (d) .mkv
29. 29.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) a typing tutor (d) a pen drive
31. 31.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
32. 32.Which of these is hardware? (a) a hard disk (b) a word processor (c) a typing tutor (d) a calculator app
33. 33.True or false: a paint program is software. (a) False (b) True
34. 34.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
35. 35.True or false: a monitor is software. (a) False (b) True
36. 36.True or false: to delete a file means to give it a new name. (a) False (b) True
37. 37.True or false: a scanner is hardware. (a) True (b) False
38. 38.💾 How many bytes are there in 1 KB?
39. 39.True or false: to rename a file means to give it a new name. (a) True (b) False
40. 40.Which file ending is a sound? (a) .txt (b) .jpg (c) .avi (d) .wav

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