Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 782 · 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 file ending is a document? (a) .txt (b) .mp3 (c) .mp4 (d) .png
2. 2.True or false: to rename a file means to change its name. (a) False (b) True
3. 3.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 5 (d) 1
4. 4.🧩 Is a paint program hardware or software? (a) hardware (b) software
5. 5.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
6. 6.🧩 Is a keyboard hardware or software? (a) hardware (b) software
7. 7.What does it mean to copy a file? (a) see what is inside (b) make an exact twin (c) throw it away (d) get rid of it
8. 8.☁️ Saving files on the internet to use from anywhere is called ___. (a) rain storage (b) paper storage (c) box storage (d) cloud storage
9. 9.💾 How many KB are there in 2 MB?
10. 10.🧩 Is a scanner hardware or software? (a) software (b) hardware
11. 11.🧩 Is a speaker hardware or software? (a) software (b) hardware
12. 12.✋ Which can we touch: hardware or software? (a) hardware (b) software
13. 13.Which shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+S (c) Ctrl+P (d) Ctrl+Y
14. 14.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
15. 15.🧾 Software is a set of ___ for the computer. (a) screws (b) instructions (c) buttons (d) wires
16. 16.🔍 Which is the odd one out? (a) a typing tutor (b) a computer game (c) a word processor (d) a speaker
17. 17.🔍 Which is the odd one out? (a) keyboard (b) mouse (c) scanner (d) hard disk
18. 18.🧩 Is a printer hardware or software? (a) hardware (b) software
19. 19.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False
20. 20.True or false: to create a file means to store your work. (a) False (b) True
21. 21.Which of these is software? (a) a scanner (b) a pen drive (c) a printer (d) a music player app
22. 22.🔍 Which is the odd one out? (a) a typing tutor (b) a web browser (c) a calculator app (d) a printer
23. 23.What does it mean to open a file? (a) see what is inside (b) change its name (c) make an exact twin (d) get rid of it
24. 24.What does it mean to rename a file? (a) store your work (b) give it a new name (c) see what is inside (d) get rid of it
25. 25.True or false: to rename a file means to make an exact twin. (a) False (b) True
26. 26.Which of these is a storage device? (a) microphone (b) printer (c) keyboard (d) pen drive
27. 27.💾 How many bytes are there in 3 KB?
28. 28.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) undo (c) print (d) save
29. 29.Which of these is hardware? (a) a paint program (b) an operating system (c) a music player app (d) a printer
30. 30.💾 Which is smaller: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
31. 31.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an input device (c) an output device
32. 32.💾 How many bytes are there in 1 KB?
33. 33.Which of these is an input device? (a) mouse (b) solid-state drive (c) monitor (d) speaker
34. 34.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) bit (d) GB
35. 35.💾 Which is smaller: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
36. 36.📁 Which word means to “put it in another place” (for a file or folder)? (a) save (b) open (c) move (d) rename
37. 37.True or false: RAM keeps your saved files. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a hard disk (b) a word processor (c) a monitor (d) a webcam
39. 39.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Cut (c) Redo (d) Delete
40. 40.What does it mean to delete a file? (a) make a brand-new one (b) see what is inside (c) make an exact twin (d) get rid of it

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