Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 671 · 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 is the odd one out? (a) a webcam (b) a keyboard (c) a computer game (d) a monitor
2. 2.True or false: Ctrl+A is the shortcut to select all. (a) False (b) True
3. 3.True or false: a hard disk is hardware. (a) False (b) True
4. 4.True or false: a music player app is hardware. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a web browser (b) a music player app (c) an operating system (d) a mouse
6. 6.🧰 Is a projector a storage, input or output device? (a) an output device (b) an input device (c) a storage device
7. 7.🔍 Which is the odd one out? (a) a printer (b) a speaker (c) a hard disk (d) a word processor
8. 8.🧩 Is a monitor hardware or software? (a) hardware (b) software
9. 9.True or false: Ctrl+V is the shortcut to print. (a) True (b) False
10. 10.⌨️ In a word processor, what does Ctrl+P do? (a) copy (b) save (c) undo (d) print
11. 11.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device
12. 12.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
13. 13.🧩 Is a webcam hardware or software? (a) hardware (b) software
14. 14.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the memory card (c) the pen drive (d) RAM
15. 15.💾 How many bytes are there in 3 KB?
16. 16.🔍 Which is the odd one out? (a) a typing tutor (b) a hard disk (c) a pen drive (d) a scanner
17. 17.Which shortcut do we press to print? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+P
18. 18.True or false: RAM keeps data when off. (a) True (b) False
19. 19.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+A
20. 20.True or false: a web browser is hardware. (a) False (b) True
21. 21.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Backspace (c) Copy (d) Delete
22. 22.🔍 Which is the odd one out? (a) a hard disk (b) a music player app (c) a keyboard (d) a webcam
23. 23.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
24. 24.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) tailors (d) plumbers
25. 25.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
26. 26.What does it mean to move a file? (a) see what is inside (b) put it in another place (c) get rid of it (d) throw it away
27. 27.🧾 Software is a set of ___ for the computer. (a) screws (b) buttons (c) wires (d) instructions
28. 28.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) paper storage (d) box storage
29. 29.True or false: to rename a file means to keep your work for later. (a) False (b) True
30. 30.💾 Which is bigger: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
31. 31.True or false: to move a file means to put it in another place. (a) False (b) True
32. 32.💾 How many bytes are there in 1 KB?
33. 33.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
34. 34.Which file ending is a sound? (a) .gif (b) .mp4 (c) .mkv (d) .mp3
35. 35.Which shortcut do we press to paste? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+A (d) Ctrl+P
36. 36.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
37. 37.True or false: RAM holds apps that are open. (a) True (b) False
38. 38.✋ Which can we touch: hardware or software? (a) software (b) hardware
39. 39.💾 How many bits are there in 2 bytes?
40. 40.📁 What do we call a folder inside another folder? (a) an icon (b) a big file (c) a printer (d) a subfolder

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