Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 854 · 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.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) undo (c) copy (d) paste
2. 2.💾 How many KB are there in 4 MB?
3. 3.🧩 Is an operating system hardware or software? (a) hardware (b) software
4. 4.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM
5. 5.✋ Which can we touch: hardware or software? (a) hardware (b) software
6. 6.True or false: Ctrl+C is the shortcut to cut. (a) False (b) True
7. 7.💾 How many bytes are there in 2 KB?
8. 8.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) buttons (d) screws
9. 9.Which of these is a storage device? (a) pen drive (b) keyboard (c) mouse (d) printer
10. 10.📁 Which word means to “keep your work for later” (for a file or folder)? (a) create (b) rename (c) save (d) open
11. 11.💾 How many MB are there in 3 GB?
12. 12.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) copy (b) move (c) delete (d) create
13. 13.🧰 Is a speaker a storage, input or output device? (a) an output device (b) a storage device (c) an input device
14. 14.🧩 Is a computer game hardware or software? (a) software (b) hardware
15. 15.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
16. 16.True or false: to copy a file means to make an exact twin. (a) True (b) False
17. 17.💾 How many GB are there in 1 TB?
18. 18.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
19. 19.True or false: RAM is the working memory. (a) False (b) True
20. 20.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
21. 21.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 2 (d) 1
22. 22.🔍 Which is the odd one out? (a) a music player app (b) a webcam (c) a mouse (d) a scanner
23. 23.📄 A file name ends in .jpg. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
24. 24.💾 How many KB are there in 1 MB?
25. 25.🧩 Is a monitor hardware or software? (a) software (b) hardware
26. 26.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
27. 27.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) RAM (c) the memory card (d) the hard disk
28. 28.Which of these is software? (a) a webcam (b) a web browser (c) a scanner (d) a keyboard
29. 29.Which shortcut do we press to cut? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+S (d) Ctrl+A
30. 30.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
31. 31.True or false: a printer is software. (a) False (b) True
32. 32.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
33. 33.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
34. 34.Which of these is software? (a) a keyboard (b) a pen drive (c) a scanner (d) a paint program
35. 35.💾 Which is bigger: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
36. 36.🏷️ Every file has a ___ so we can find it. (a) smell (b) taste (c) weight (d) name
37. 37.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
38. 38.Which of these is true of RAM? (a) is permanent storage (b) keeps photos for years (c) holds apps that are open (d) keeps data when off
39. 39.🧩 Is a keyboard hardware or software? (a) hardware (b) software
40. 40.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+S (d) Ctrl+Z

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