Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 665 · 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.🧾 Software is a set of ___ for the computer. (a) screws (b) wires (c) instructions (d) buttons
2. 2.Which of these is software? (a) a mouse (b) a monitor (c) a printer (d) an operating system
3. 3.💾 Which is smaller: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
4. 4.⚡ Which is faster for the computer to work with? (a) a memory card (b) a pen drive (c) RAM (d) a printer
5. 5.💾 Which is bigger: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
6. 6.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) the hard disk (d) RAM
7. 7.Which file ending is a video? (a) .wav (b) .mkv (c) .txt (d) .gif
8. 8.⌨️ In a word processor, what does Ctrl+A do? (a) print (b) paste (c) select all (d) save
9. 9.True or false: a speaker is software. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a hard disk (b) an operating system (c) a mouse (d) a monitor
11. 11.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
12. 12.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) programmers (d) tailors
13. 13.Which of these is an input device? (a) speaker (b) solid-state drive (c) microphone (d) projector
14. 14.True or false: a webcam is software. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) memory card (b) keyboard (c) scanner (d) mouse
16. 16.🧩 Is a speaker hardware or software? (a) software (b) hardware
17. 17.🔍 Which is the odd one out? (a) a speaker (b) a typing tutor (c) a music player app (d) a paint program
18. 18.💾 How many bits are there in 11 bytes?
19. 19.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Copy (c) Redo (d) Delete
20. 20.What does it mean to create a file? (a) throw it away (b) store your work (c) make a brand-new one (d) give it a new name
21. 21.💾 How many MB are there in 2 GB?
22. 22.Which shortcut do we press to cut? (a) Ctrl+X (b) Ctrl+Y (c) Ctrl+S (d) Ctrl+V
23. 23.Which file ending is a picture? (a) .mp3 (b) .pdf (c) .mkv (d) .gif
24. 24.📁 Which word means to “make an exact twin” (for a file or folder)? (a) move (b) create (c) save (d) copy
25. 25.🔍 Which is the odd one out? (a) a word processor (b) a keyboard (c) a paint program (d) a calculator app
26. 26.True or false: a pen drive is software. (a) True (b) False
27. 27.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
28. 28.💾 Which is smaller: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
29. 29.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a speaker (d) a folder
30. 30.📁 What do we call a folder inside another folder? (a) a big file (b) a printer (c) a subfolder (d) an icon
31. 31.True or false: a pen drive is a storage device. (a) True (b) False
32. 32.Which of these is an output device? (a) mouse (b) projector (c) pen drive (d) hard disk
33. 33.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
34. 34.⌨️ In a word processor, what does Ctrl+P do? (a) cut (b) print (c) paste (d) copy
35. 35.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
36. 36.🧩 Is a mouse hardware or software? (a) hardware (b) software
37. 37.⌨️ In a word processor, what does Ctrl+X do? (a) save (b) print (c) cut (d) paste
38. 38.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
39. 39.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) copy (b) move (c) create (d) delete
40. 40.True or false: a microphone is a storage device. (a) False (b) True

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