Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 484 · 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+A do? (a) select all (b) paste (c) copy (d) save
2. 2.True or false: to create a file means to make a brand-new one. (a) True (b) False
3. 3.✋ Which can we touch: hardware or software? (a) software (b) hardware
4. 4.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
5. 5.What does it mean to copy a file? (a) give it a new name (b) make a brand-new one (c) get rid of it (d) make an exact twin
6. 6.📄 A file name ends in .wav. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
7. 7.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
8. 8.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
9. 9.📄 A file name ends in .jpg. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
10. 10.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
11. 11.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
12. 12.💾 How many bytes are there in 4 KB?
13. 13.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
14. 14.🔍 Which is the odd one out? (a) a word processor (b) a paint program (c) a hard disk (d) a calculator app
15. 15.⌨️ In a word processor, what does Ctrl+C do? (a) undo (b) copy (c) cut (d) paste
16. 16.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
17. 17.🔍 Which is the odd one out? (a) mouse (b) scanner (c) microphone (d) pen drive
18. 18.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Undo (c) Print (d) Cut
19. 19.💾 How many bits are there in 9 bytes?
20. 20.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
21. 21.True or false: Ctrl+C is the shortcut to save. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a printer (b) a monitor (c) a typing tutor (d) a hard disk
23. 23.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+P (c) Ctrl+A (d) Ctrl+C
24. 24.Which file ending is a video? (a) .gif (b) .mp3 (c) .jpg (d) .mp4
25. 25.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) plumbers (d) tailors
26. 26.💾 Which is bigger: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
27. 27.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
28. 28.💾 Which is bigger: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
29. 29.🧰 Is a speaker a storage, input or output device? (a) a storage device (b) an input device (c) an output device
30. 30.🧰 Is a scanner a storage, input or output device? (a) an input device (b) a storage device (c) an output device
31. 31.🧰 Is a microphone a storage, input or output device? (a) a storage device (b) an output device (c) an input device
32. 32.Which shortcut do we press to save? (a) Ctrl+V (b) Ctrl+S (c) Ctrl+X (d) Ctrl+P
33. 33.💾 How many bytes are there in 3 KB?
34. 34.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) printer (d) solid-state drive
35. 35.💾 Which is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
36. 36.What does it mean to create a file? (a) see what is inside (b) change its name (c) make an exact twin (d) make a brand-new one
37. 37.🧰 Is a mouse a storage, input or output device? (a) an output device (b) an input device (c) a storage device
38. 38.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
39. 39.True or false: a webcam is hardware. (a) True (b) False
40. 40.Which file ending is a document? (a) .mp4 (b) .mkv (c) .mp3 (d) .pdf

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