Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 115 · 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.📄 A file name ends in .mp4. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
2. 2.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) holds apps that are open (c) loses data when off (d) keeps photos for years
3. 3.🏷️ Every file has a ___ so we can find it. (a) weight (b) name (c) smell (d) taste
4. 4.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
5. 5.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Copy (c) Save (d) Undo
6. 6.🧰 Is a memory card a storage, input or output device? (a) an input device (b) an output device (c) a storage device
7. 7.🧩 Is an operating system hardware or software? (a) hardware (b) software
8. 8.Which of these is software? (a) a hard disk (b) a scanner (c) a word processor (d) a keyboard
9. 9.💾 How many MB are there in 3 GB?
10. 10.⌨️ In a word processor, what does Ctrl+Z do? (a) paste (b) undo (c) select all (d) print
11. 11.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
12. 12.Which file ending is a video? (a) .pdf (b) .gif (c) .wav (d) .mp4
13. 13.👩‍💻 What do we call people who write software? (a) plumbers (b) programmers (c) tailors (d) farmers
14. 14.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
15. 15.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+A (c) Ctrl+V (d) Ctrl+C
16. 16.True or false: a solid-state drive is an input device. (a) False (b) True
17. 17.💾 Which is smaller: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
18. 18.Which of these is software? (a) a speaker (b) a monitor (c) a typing tutor (d) a scanner
19. 19.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
20. 20.💾 Which is bigger: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
21. 21.⌨️ In a word processor, what does Ctrl+S do? (a) undo (b) print (c) save (d) copy
22. 22.True or false: to rename a file means to give it a new name. (a) False (b) True
23. 23.Which of these is true of RAM? (a) keeps your saved files (b) keeps data when off (c) loses data when off (d) is permanent storage
24. 24.Which shortcut do we press to copy? (a) Ctrl+X (b) Ctrl+C (c) Ctrl+A (d) Ctrl+S
25. 25.💾 Which is smaller: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
26. 26.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+S (c) Ctrl+Z (d) Ctrl+X
27. 27.💾 Which is smaller: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
28. 28.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
29. 29.💾 Which is smaller: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
30. 30.Which of these is hardware? (a) a computer game (b) an operating system (c) a paint program (d) a hard disk
31. 31.True or false: a projector is a storage device. (a) True (b) False
32. 32.True or false: to copy a file means to make an exact twin. (a) False (b) True
33. 33.What does it mean to open a file? (a) put it in another place (b) see what is inside (c) give it a new name (d) make an exact twin
34. 34.☁️ Saving files on the internet to use from anywhere is called ___. (a) rain storage (b) paper storage (c) box storage (d) cloud storage
35. 35.Which of these is hardware? (a) a computer game (b) a calculator app (c) a web browser (d) a mouse
36. 36.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) copy (c) redo (d) save
37. 37.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
38. 38.💾 How many KB are there in 1 MB?
39. 39.Which file ending is a picture? (a) .txt (b) .avi (c) .png (d) .pdf
40. 40.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Print (c) Undo (d) Cut

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