Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 985 · 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.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
2. 2.What does it mean to rename a file? (a) change its name (b) keep your work for later (c) make a brand-new one (d) make an exact twin
3. 3.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
4. 4.📄 What does a word processor help us do? (a) fly a kite (b) type and edit text (c) cook food (d) water plants
5. 5.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the hard disk (c) the memory card (d) the pen drive
6. 6.💾 How many KB are there in 4 MB?
7. 7.True or false: Ctrl+A is the shortcut to cut. (a) True (b) False
8. 8.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) paste (c) print (d) copy
9. 9.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) is permanent storage (c) loses data when off (d) is the working memory
10. 10.Which shortcut do we press to select all? (a) Ctrl+P (b) Ctrl+Y (c) Ctrl+Z (d) Ctrl+A
11. 11.🔍 Which is the odd one out? (a) mouse (b) speaker (c) keyboard (d) microphone
12. 12.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+A (c) Ctrl+S (d) Ctrl+P
13. 13.📁 Which word means to “store your work” (for a file or folder)? (a) save (b) delete (c) open (d) create
14. 14.🧩 Is a mouse hardware or software? (a) software (b) hardware
15. 15.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) keyboard (d) speaker
16. 16.🧩 Is a word processor hardware or software? (a) software (b) hardware
17. 17.True or false: Ctrl+A is the shortcut to select all. (a) False (b) True
18. 18.📁 Which word means to “get rid of it” (for a file or folder)? (a) open (b) rename (c) create (d) delete
19. 19.💾 How many MB are there in 3 GB?
20. 20.True or false: a projector is an output device. (a) True (b) False
21. 21.💾 Which is bigger: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
22. 22.Which of these is hardware? (a) a web browser (b) a typing tutor (c) a computer game (d) a speaker
23. 23.True or false: to open a file means to make an exact twin. (a) True (b) False
24. 24.💾 Which is smaller: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
25. 25.True or false: to rename a file means to change its name. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a scanner (b) a word processor (c) a computer game (d) a music player app
27. 27.True or false: RAM holds apps that are open. (a) True (b) False
28. 28.True or false: a printer is an output device. (a) False (b) True
29. 29.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
30. 30.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 5 (d) 2
31. 31.True or false: a scanner is software. (a) True (b) False
32. 32.💾 Which is smaller: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
33. 33.True or false: a microphone is a storage device. (a) False (b) True
34. 34.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
35. 35.💾 Which is smaller: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
36. 36.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
37. 37.📄 A file name ends in .mp4. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
38. 38.💾 How many MB are there in 2 GB?
39. 39.What does it mean to save a file? (a) keep your work for later (b) give it a new name (c) get rid of it (d) change its name
40. 40.🔍 Which is the odd one out? (a) a scanner (b) a word processor (c) a printer (d) a pen drive

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