Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 948 · 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 copy? (a) Ctrl+C (b) Ctrl+Z (c) Ctrl+Y (d) Ctrl+S
2. 2.Which of these is hardware? (a) an operating system (b) a calculator app (c) a webcam (d) a typing tutor
3. 3.💾 How many bits are there in 3 bytes?
4. 4.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an input device (c) an output device
5. 5.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) GB (d) byte
6. 6.True or false: a computer game is hardware. (a) False (b) True
7. 7.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
8. 8.True or false: to delete a file means to throw it away. (a) False (b) True
9. 9.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
10. 10.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) paste (c) select all (d) cut
11. 11.🧩 Is a music player app hardware or software? (a) hardware (b) software
12. 12.⌨️ In a word processor, what does Ctrl+V do? (a) print (b) copy (c) cut (d) paste
13. 13.🧰 Is a speaker a storage, input or output device? (a) an output device (b) an input device (c) a storage device
14. 14.💾 Which is bigger: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
15. 15.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+C (c) Ctrl+S (d) Ctrl+Y
16. 16.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) farmers (d) programmers
17. 17.Which file ending is a picture? (a) .wav (b) .mkv (c) .mp4 (d) .jpg
18. 18.📄 A file name ends in .gif. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
19. 19.⌨️ In a word processor, what does Ctrl+X do? (a) select all (b) redo (c) copy (d) cut
20. 20.True or false: Ctrl+P is the shortcut to paste. (a) False (b) True
21. 21.🧰 Is a hard disk a storage, input or output device? (a) a storage device (b) an output device (c) an input device
22. 22.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a pixel (c) a folder (d) a speaker
23. 23.True or false: a word processor is hardware. (a) False (b) True
24. 24.📷 A camera keeps its photos on a small ___. (a) memory card (b) keyboard (c) speaker (d) mouse pad
25. 25.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
26. 26.True or false: a memory card is a storage device. (a) False (b) True
27. 27.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
28. 28.💾 How many GB are there in 2 TB?
29. 29.🧩 Is a speaker hardware or software? (a) software (b) hardware
30. 30.Which file ending is a sound? (a) .txt (b) .mp3 (c) .mp4 (d) .gif
31. 31.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) loses data when off (c) is the working memory (d) keeps your saved files
32. 32.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
33. 33.💾 Which is bigger: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
34. 34.Which file ending is a video? (a) .txt (b) .avi (c) .mp3 (d) .jpg
35. 35.📁 What do we call a folder inside another folder? (a) an icon (b) a subfolder (c) a printer (d) a big file
36. 36.True or false: to rename a file means to give it a new name. (a) False (b) True
37. 37.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
38. 38.What does it mean to copy a file? (a) store your work (b) change its name (c) throw it away (d) make an exact twin
39. 39.🔍 Which is the odd one out? (a) a speaker (b) a word processor (c) a scanner (d) a keyboard
40. 40.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) copy (c) select all (d) undo

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