Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 100 · 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 .mp3. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
2. 2.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
3. 3.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) select all (c) redo (d) save
4. 4.🧰 Is a mouse a storage, input or output device? (a) an output device (b) a storage device (c) an input device
5. 5.⚡ Which is faster for the computer to work with? (a) a pen drive (b) RAM (c) a printer (d) a memory card
6. 6.True or false: a projector is an output device. (a) False (b) True
7. 7.📁 Which word means to “keep your work for later” (for a file or folder)? (a) open (b) rename (c) copy (d) save
8. 8.True or false: Ctrl+V is the shortcut to cut. (a) True (b) False
9. 9.What does it mean to create a file? (a) give it a new name (b) store your work (c) throw it away (d) make a brand-new one
10. 10.True or false: a keyboard is an input device. (a) True (b) False
11. 11.💾 Which is bigger: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
12. 12.🧩 Is a paint program hardware or software? (a) hardware (b) software
13. 13.💾 How many GB are there in 2 TB?
14. 14.📄 A file name ends in .gif. What is it most likely? (a) a picture (b) a document (c) a sound (d) a video
15. 15.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Cut (c) Delete (d) Print
16. 16.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
17. 17.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) paper storage (c) box storage (d) rain storage
18. 18.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
19. 19.🔍 Which is the odd one out? (a) a pen drive (b) a hard disk (c) a monitor (d) a word processor
20. 20.Which file ending is a video? (a) .wav (b) .mp4 (c) .gif (d) .txt
21. 21.📁 Which word means to “give it a new name” (for a file or folder)? (a) copy (b) open (c) rename (d) save
22. 22.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
23. 23.Which of these is hardware? (a) a typing tutor (b) a music player app (c) a mouse (d) a paint program
24. 24.True or false: a music player app is software. (a) False (b) True
25. 25.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+X (c) Ctrl+V (d) Ctrl+P
26. 26.🖍️ Before we cut or copy text, we must first ___ it. (a) select (b) delete (c) save (d) print
27. 27.Which of these is hardware? (a) a web browser (b) a calculator app (c) a printer (d) an operating system
28. 28.True or false: to move a file means to make an exact twin. (a) False (b) True
29. 29.True or false: a speaker is hardware. (a) True (b) False
30. 30.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
31. 31.💾 How many bytes are there in 1 KB?
32. 32.📄 A file name ends in .pdf. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
33. 33.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) copy (c) undo (d) print
34. 34.🧩 Is a printer hardware or software? (a) software (b) hardware
35. 35.💾 Which is bigger: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
36. 36.⌨️ In a word processor, what does Ctrl+V do? (a) cut (b) paste (c) redo (d) copy
37. 37.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
38. 38.Which of these is hardware? (a) a web browser (b) a scanner (c) a word processor (d) a computer game
39. 39.True or false: a microphone is an input device. (a) False (b) True
40. 40.🧩 Is a pen drive hardware or software? (a) software (b) hardware

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