Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 234 · 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 document? (a) .png (b) .wav (c) .txt (d) .mkv
2. 2.Which of these is a storage device? (a) speaker (b) hard disk (c) scanner (d) mouse
3. 3.What does it mean to save a file? (a) get rid of it (b) see what is inside (c) give it a new name (d) keep your work for later
4. 4.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
5. 5.What does it mean to open a file? (a) keep your work for later (b) see what is inside (c) change its name (d) put it in another place
6. 6.🔍 Which is the odd one out? (a) projector (b) printer (c) speaker (d) pen drive
7. 7.🔍 Which is the odd one out? (a) a hard disk (b) a paint program (c) a monitor (d) a mouse
8. 8.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+F (c) Ctrl+U (d) Ctrl+B
9. 9.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) GB (d) bit
10. 10.💾 Which is smaller: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
11. 11.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
12. 12.🔍 Which is the odd one out? (a) microphone (b) speaker (c) keyboard (d) mouse
13. 13.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
14. 14.🧩 Is a scanner hardware or software? (a) hardware (b) software
15. 15.🔍 Which is the odd one out? (a) a calculator app (b) a music player app (c) a typing tutor (d) a printer
16. 16.📁 Which word means to “give it a new name” (for a file or folder)? (a) create (b) save (c) rename (d) copy
17. 17.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
18. 18.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM
19. 19.💾 How many bits are there in 3 bytes?
20. 20.👩‍💻 What do we call people who write software? (a) tailors (b) programmers (c) plumbers (d) farmers
21. 21.Which of these is hardware? (a) a calculator app (b) a music player app (c) a word processor (d) a keyboard
22. 22.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
23. 23.Which of these is hardware? (a) a pen drive (b) a calculator app (c) a word processor (d) a music player app
24. 24.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Backspace (c) Delete (d) Undo
25. 25.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
26. 26.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
27. 27.Which of these is software? (a) a speaker (b) a web browser (c) a mouse (d) a webcam
28. 28.💾 Which is smaller: 1 MB or 1 TB? (a) 1 MB (b) 1 TB
29. 29.True or false: a music player app is hardware. (a) False (b) True
30. 30.True or false: to copy a file means to throw it away. (a) False (b) True
31. 31.True or false: a mouse is hardware. (a) False (b) True
32. 32.True or false: Ctrl+P is the shortcut to paste. (a) True (b) False
33. 33.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an output device (c) an input device
34. 34.True or false: a pen drive is a storage device. (a) False (b) True
35. 35.True or false: storage (like a hard disk) keeps your saved files. (a) True (b) False
36. 36.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
37. 37.🔍 Which is the odd one out? (a) a pen drive (b) a mouse (c) a printer (d) a music player app
38. 38.What does it mean to delete a file? (a) make a brand-new one (b) get rid of it (c) give it a new name (d) see what is inside
39. 39.True or false: a microphone is a storage device. (a) False (b) True
40. 40.True or false: a speaker is hardware. (a) False (b) True

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