Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 614 · 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 GB? (a) 1 byte (b) 1 GB
2. 2.Which file ending is a picture? (a) .jpg (b) .mkv (c) .txt (d) .mp4
3. 3.💾 How many bits are there in 4 bytes?
4. 4.Which of these is true of storage (like a hard disk)? (a) keeps photos for years (b) is temporary memory (c) is the working memory (d) loses data when off
5. 5.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) instructions (d) wires
6. 6.📄 A file name ends in .mkv. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
7. 7.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) print (c) redo (d) undo
8. 8.True or false: to rename a file means to make an exact twin. (a) False (b) True
9. 9.Which shortcut do we press to cut? (a) Ctrl+V (b) Ctrl+C (c) Ctrl+X (d) Ctrl+Z
10. 10.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a subfolder (d) a big file
11. 11.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) delete (c) select (d) save
12. 12.Which of these is software? (a) a computer game (b) a mouse (c) a printer (d) a speaker
13. 13.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
14. 14.True or false: Ctrl+Z is the shortcut to cut. (a) False (b) True
15. 15.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
16. 16.Which of these is hardware? (a) an operating system (b) a computer game (c) a typing tutor (d) a keyboard
17. 17.Which of these is true of storage (like a hard disk)? (a) keeps your saved files (b) loses data when off (c) is the working memory (d) is temporary memory
18. 18.True or false: to move a file means to put it in another place. (a) False (b) True
19. 19.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
20. 20.Which of these is software? (a) a scanner (b) a speaker (c) a music player app (d) a pen drive
21. 21.💾 How many MB are there in 1 GB?
22. 22.True or false: a microphone is an output device. (a) False (b) True
23. 23.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) bit (d) KB
24. 24.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) paper storage (d) box storage
25. 25.📁 Which word means to “put it in another place” (for a file or folder)? (a) move (b) delete (c) copy (d) open
26. 26.True or false: RAM is permanent storage. (a) False (b) True
27. 27.Which file ending is a document? (a) .avi (b) .wav (c) .txt (d) .mp3
28. 28.🧩 Is a calculator app hardware or software? (a) software (b) hardware
29. 29.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Redo (c) Delete (d) Copy
30. 30.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) programmers (d) tailors
31. 31.🔍 Which is the odd one out? (a) memory card (b) solid-state drive (c) microphone (d) pen drive
32. 32.Which of these is an output device? (a) scanner (b) microphone (c) mouse (d) monitor
33. 33.Which shortcut do we press to redo? (a) Ctrl+Z (b) Ctrl+Y (c) Ctrl+S (d) Ctrl+V
34. 34.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an input device (c) an output device
35. 35.Which of these is an output device? (a) scanner (b) printer (c) keyboard (d) memory card
36. 36.📄 A file name ends in .gif. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
37. 37.🔍 Which is the odd one out? (a) a computer game (b) an operating system (c) a mouse (d) a calculator app
38. 38.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) copy (c) cut (d) save
39. 39.💾 How many GB are there in 2 TB?
40. 40.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+Z (c) Ctrl+S (d) Ctrl+X

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