Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 340 · 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.💾 How many GB are there in 2 TB?
2. 2.💾 How many KB are there in 4 MB?
3. 3.📁 Which word means to “change its name” (for a file or folder)? (a) rename (b) copy (c) save (d) delete
4. 4.Which file ending is a sound? (a) .png (b) .mp3 (c) .gif (d) .jpg
5. 5.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
6. 6.Which file ending is a sound? (a) .wav (b) .avi (c) .gif (d) .mp4
7. 7.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) delete (c) select (d) print
8. 8.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) byte (d) GB
9. 9.True or false: a microphone is an input device. (a) True (b) False
10. 10.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
11. 11.💾 Which is smaller: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
12. 12.📄 A file name ends in .mp4. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
13. 13.🧰 Is a keyboard a storage, input or output device? (a) an output device (b) an input device (c) a storage device
14. 14.💾 Which is smaller: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
15. 15.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
16. 16.⌨️ In a word processor, what does Ctrl+V do? (a) select all (b) undo (c) cut (d) paste
17. 17.True or false: a projector is a storage device. (a) True (b) False
18. 18.🧩 Is a scanner hardware or software? (a) software (b) hardware
19. 19.💾 How many MB are there in 1 GB?
20. 20.📄 A file name ends in .avi. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
21. 21.🔍 Which is the odd one out? (a) pen drive (b) solid-state drive (c) memory card (d) microphone
22. 22.💾 Which is smaller: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
23. 23.📷 A camera keeps its photos on a small ___. (a) keyboard (b) speaker (c) memory card (d) mouse pad
24. 24.🧰 Is a memory card a storage, input or output device? (a) an input device (b) a storage device (c) an output device
25. 25.True or false: to copy a file means to see what is inside. (a) False (b) True
26. 26.👩‍💻 What do we call people who write software? (a) tailors (b) plumbers (c) farmers (d) programmers
27. 27.💾 How many bytes are there in 2 KB?
28. 28.💾 Which is smaller: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
29. 29.📄 A file name ends in .wav. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
30. 30.💾 Which is smaller: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
31. 31.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+V (d) Ctrl+C
32. 32.True or false: RAM holds apps that are open. (a) False (b) True
33. 33.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
34. 34.💾 How many bits are there in 10 bytes?
35. 35.💾 Which is bigger: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
36. 36.Which of these is software? (a) a webcam (b) a speaker (c) a printer (d) a word processor
37. 37.What does it mean to delete a file? (a) throw it away (b) keep your work for later (c) see what is inside (d) give it a new name
38. 38.True or false: a pen drive is a storage device. (a) True (b) False
39. 39.Which shortcut do we press to redo? (a) Ctrl+V (b) Ctrl+P (c) Ctrl+Y (d) Ctrl+C
40. 40.Which of these is hardware? (a) a webcam (b) a paint program (c) a typing tutor (d) a word processor

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