Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 25 · 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 of these is hardware? (a) a hard disk (b) an operating system (c) a word processor (d) a paint program
2. 2.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a speaker (c) a pixel (d) a mouse
3. 3.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
4. 4.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) redo (c) paste (d) copy
5. 5.True or false: to save a file means to make an exact twin. (a) True (b) False
6. 6.📁 Which word means to “throw it away” (for a file or folder)? (a) copy (b) create (c) rename (d) delete
7. 7.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
8. 8.🧩 Is a monitor hardware or software? (a) hardware (b) software
9. 9.Which of these is true of RAM? (a) is temporary memory (b) keeps data when off (c) is permanent storage (d) keeps your saved files
10. 10.🧩 Is a hard disk hardware or software? (a) hardware (b) software
11. 11.True or false: Ctrl+V is the shortcut to redo. (a) True (b) False
12. 12.📄 A file name ends in .mp4. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
13. 13.True or false: to move a file means to store your work. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) mouse (b) keyboard (c) memory card (d) scanner
15. 15.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
16. 16.Which file ending is a video? (a) .txt (b) .mp4 (c) .jpg (d) .wav
17. 17.💾 How many KB are there in 4 MB?
18. 18.💾 How many bytes are there in 3 KB?
19. 19.Which shortcut do we press to print? (a) Ctrl+A (b) Ctrl+C (c) Ctrl+P (d) Ctrl+Y
20. 20.💾 How many KB are there in 3 MB?
21. 21.📁 Which word means to “get rid of it” (for a file or folder)? (a) save (b) move (c) delete (d) open
22. 22.🔍 Which is the odd one out? (a) a calculator app (b) an operating system (c) a scanner (d) a paint program
23. 23.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) delete (c) save (d) move
24. 24.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) select all (c) paste (d) print
25. 25.🧾 Software is a set of ___ for the computer. (a) buttons (b) instructions (c) wires (d) screws
26. 26.💾 How many bytes are there in 1 KB?
27. 27.What does it mean to rename a file? (a) make an exact twin (b) make a brand-new one (c) change its name (d) throw it away
28. 28.💾 How many bits are there in 8 bytes?
29. 29.True or false: RAM keeps photos for years. (a) False (b) True
30. 30.💾 How many GB are there in 2 TB?
31. 31.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
32. 32.Which file ending is a picture? (a) .avi (b) .wav (c) .mp3 (d) .gif
33. 33.💾 Which is smaller: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
34. 34.💾 How many bytes are there in 4 KB?
35. 35.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 5 (d) 1
36. 36.🔍 Which is the odd one out? (a) a computer game (b) a calculator app (c) an operating system (d) a monitor
37. 37.Which file ending is a document? (a) .gif (b) .txt (c) .mp3 (d) .png
38. 38.Which of these is an output device? (a) scanner (b) speaker (c) keyboard (d) mouse
39. 39.True or false: a mouse is a storage device. (a) False (b) True
40. 40.Which of these is hardware? (a) a calculator app (b) an operating system (c) a scanner (d) a music player app

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