Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 748 · 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: a mouse is an output device. (a) False (b) True
2. 2.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) delete (c) select (d) save
3. 3.✋ Which can we touch: hardware or software? (a) hardware (b) software
4. 4.💾 Which is bigger: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
5. 5.True or false: Ctrl+X is the shortcut to cut. (a) False (b) True
6. 6.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) the hard disk (c) RAM (d) the memory card
7. 7.Which of these is software? (a) a monitor (b) a webcam (c) a word processor (d) a hard disk
8. 8.🔍 Which is the odd one out? (a) keyboard (b) mouse (c) microphone (d) speaker
9. 9.🧩 Is a hard disk hardware or software? (a) hardware (b) software
10. 10.💾 How many KB are there in 2 MB?
11. 11.🔍 Which is the odd one out? (a) a music player app (b) a keyboard (c) a word processor (d) a computer game
12. 12.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) save (c) select all (d) redo
13. 13.🔍 Which is the odd one out? (a) a scanner (b) a printer (c) a music player app (d) a monitor
14. 14.🔍 Which is the odd one out? (a) an operating system (b) a mouse (c) a pen drive (d) a printer
15. 15.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
16. 16.True or false: to open a file means to see what is inside. (a) False (b) True
17. 17.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 5 (d) 1
18. 18.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
19. 19.True or false: a calculator app is software. (a) True (b) False
20. 20.⌨️ In a word processor, what does Ctrl+P do? (a) select all (b) save (c) print (d) cut
21. 21.🔍 Which is the odd one out? (a) hard disk (b) solid-state drive (c) memory card (d) microphone
22. 22.Which of these is true of RAM? (a) keeps photos for years (b) keeps your saved files (c) is permanent storage (d) holds apps that are open
23. 23.💾 How many bits are there in 11 bytes?
24. 24.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
25. 25.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
26. 26.True or false: to save a file means to store your work. (a) True (b) False
27. 27.True or false: to copy a file means to make an exact twin. (a) False (b) True
28. 28.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
29. 29.💾 How many KB are there in 3 MB?
30. 30.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
31. 31.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
32. 32.💾 How many KB are there in 4 MB?
33. 33.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
34. 34.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+V
35. 35.What does it mean to move a file? (a) make an exact twin (b) put it in another place (c) change its name (d) store your work
36. 36.True or false: to delete a file means to get rid of it. (a) True (b) False
37. 37.True or false: to open a file means to keep your work for later. (a) True (b) False
38. 38.📁 Which word means to “get rid of it” (for a file or folder)? (a) delete (b) copy (c) rename (d) move
39. 39.🧩 Is a keyboard hardware or software? (a) software (b) hardware
40. 40.💾 How many MB are there in 3 GB?

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