Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 714 · 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.True or false: to save a file means to make an exact twin. (a) False (b) True
2. 2.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
3. 3.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Cut (d) Copy
4. 4.💾 How many KB are there in 1 MB?
5. 5.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
6. 6.📄 A file name ends in .pdf. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
7. 7.True or false: a printer is software. (a) True (b) False
8. 8.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) programmers (d) tailors
9. 9.Which of these is hardware? (a) a word processor (b) a web browser (c) a scanner (d) a typing tutor
10. 10.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
11. 11.True or false: Ctrl+C is the shortcut to undo. (a) False (b) True
12. 12.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
13. 13.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Copy (c) Delete (d) Backspace
14. 14.Which of these is hardware? (a) a computer game (b) a music player app (c) a calculator app (d) a mouse
15. 15.🔍 Which is the odd one out? (a) a music player app (b) a webcam (c) a speaker (d) a monitor
16. 16.🧩 Is a speaker hardware or software? (a) hardware (b) software
17. 17.True or false: a speaker is an output device. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) mouse (b) keyboard (c) pen drive (d) microphone
19. 19.Which of these is an input device? (a) memory card (b) hard disk (c) printer (d) scanner
20. 20.⌨️ In a word processor, what does Ctrl+V do? (a) print (b) select all (c) undo (d) paste
21. 21.💾 How many bits are there in 12 bytes?
22. 22.Which of these is hardware? (a) a calculator app (b) a monitor (c) a web browser (d) a paint program
23. 23.Which of these is true of RAM? (a) keeps your saved files (b) is permanent storage (c) is the working memory (d) keeps photos for years
24. 24.True or false: Ctrl+Z is the shortcut to print. (a) True (b) False
25. 25.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
26. 26.💾 How many MB are there in 2 GB?
27. 27.🔍 Which is the odd one out? (a) a mouse (b) a keyboard (c) a monitor (d) a computer game
28. 28.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
29. 29.True or false: a web browser is hardware. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a keyboard (b) a word processor (c) a typing tutor (d) an operating system
31. 31.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
32. 32.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
33. 33.True or false: a microphone is an input device. (a) False (b) True
34. 34.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) select (c) delete (d) save
35. 35.⌨️ In a word processor, what does Ctrl+C do? (a) paste (b) select all (c) copy (d) redo
36. 36.💾 How many bytes are there in 3 KB?
37. 37.🔍 Which is the odd one out? (a) a paint program (b) a printer (c) a mouse (d) a keyboard
38. 38.Which of these is true of RAM? (a) keeps your saved files (b) keeps photos for years (c) keeps data when off (d) holds apps that are open
39. 39.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
40. 40.💾 How many GB are there in 2 TB?

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