Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 903 · 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.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
2. 2.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
3. 3.🔍 Which is the odd one out? (a) a mouse (b) a monitor (c) a computer game (d) a keyboard
4. 4.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) delete (c) select (d) print
5. 5.Which file ending is a video? (a) .mp3 (b) .avi (c) .wav (d) .pdf
6. 6.Which of these is true of storage (like a hard disk)? (a) is permanent storage (b) is temporary memory (c) holds apps that are open (d) loses data when off
7. 7.💾 How many bits are there in 6 bytes?
8. 8.Which of these is true of storage (like a hard disk)? (a) keeps photos for years (b) holds apps that are open (c) is temporary memory (d) loses data when off
9. 9.🔍 Which is the odd one out? (a) an operating system (b) a hard disk (c) a monitor (d) a keyboard
10. 10.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
11. 11.⌨️ In a word processor, what does Ctrl+V do? (a) paste (b) print (c) undo (d) select all
12. 12.⌨️ In a word processor, what does Ctrl+X do? (a) redo (b) paste (c) cut (d) undo
13. 13.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
14. 14.📁 Which word means to “give it a new name” (for a file or folder)? (a) create (b) rename (c) open (d) delete
15. 15.True or false: a memory card is an input device. (a) True (b) False
16. 16.🧩 Is a printer hardware or software? (a) software (b) hardware
17. 17.True or false: Ctrl+S is the shortcut to copy. (a) False (b) True
18. 18.What does it mean to delete a file? (a) make an exact twin (b) make a brand-new one (c) throw it away (d) keep your work for later
19. 19.True or false: a hard disk is hardware. (a) True (b) False
20. 20.True or false: a word processor is hardware. (a) False (b) True
21. 21.Which of these is true of RAM? (a) keeps your saved files (b) is the working memory (c) keeps photos for years (d) keeps data when off
22. 22.Which of these is true of RAM? (a) is temporary memory (b) keeps your saved files (c) is permanent storage (d) keeps photos for years
23. 23.Which file ending is a sound? (a) .wav (b) .mp4 (c) .gif (d) .mkv
24. 24.🏷️ Every file has a ___ so we can find it. (a) taste (b) smell (c) name (d) weight
25. 25.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+V (c) Ctrl+A (d) Ctrl+P
26. 26.💾 How many bytes are there in 3 KB?
27. 27.📄 A file name ends in .png. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
28. 28.💾 How many bits are there in 10 bytes?
29. 29.Which shortcut do we press to redo? (a) Ctrl+S (b) Ctrl+P (c) Ctrl+V (d) Ctrl+Y
30. 30.Which of these is an output device? (a) printer (b) pen drive (c) memory card (d) keyboard
31. 31.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) undo (c) print (d) paste
32. 32.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 9 (d) 5
33. 33.💾 Which is smaller: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
34. 34.Which file ending is a picture? (a) .mkv (b) .mp4 (c) .txt (d) .jpg
35. 35.Which file ending is a picture? (a) .avi (b) .mkv (c) .wav (d) .png
36. 36.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+P (c) Ctrl+A (d) Ctrl+Z
37. 37.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) copy (c) undo (d) redo
38. 38.True or false: an operating system is software. (a) False (b) True
39. 39.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the pen drive (c) the memory card (d) the hard disk
40. 40.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) hard disk (d) printer

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