Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 177 · 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 shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+A (d) Ctrl+S
2. 2.Which of these is hardware? (a) a calculator app (b) an operating system (c) a computer game (d) a mouse
3. 3.👩‍💻 What do we call people who write software? (a) farmers (b) tailors (c) programmers (d) plumbers
4. 4.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
5. 5.💾 How many bytes are there in 2 KB?
6. 6.True or false: a solid-state drive is a storage device. (a) False (b) True
7. 7.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
8. 8.True or false: Ctrl+S is the shortcut to undo. (a) False (b) True
9. 9.Which file ending is a document? (a) .mp3 (b) .png (c) .pdf (d) .mp4
10. 10.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Copy (d) Cut
11. 11.What does it mean to copy a file? (a) get rid of it (b) give it a new name (c) make an exact twin (d) make a brand-new one
12. 12.🧰 Is a keyboard a storage, input or output device? (a) an output device (b) an input device (c) a storage device
13. 13.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
14. 14.📁 Which word means to “keep your work for later” (for a file or folder)? (a) delete (b) create (c) save (d) open
15. 15.📁 Which word means to “give it a new name” (for a file or folder)? (a) rename (b) save (c) create (d) delete
16. 16.🧩 Is an operating system hardware or software? (a) hardware (b) software
17. 17.📁 Which word means to “change its name” (for a file or folder)? (a) create (b) delete (c) copy (d) rename
18. 18.📁 Which word means to “store your work” (for a file or folder)? (a) save (b) open (c) copy (d) move
19. 19.Which of these is software? (a) a keyboard (b) a typing tutor (c) a monitor (d) a speaker
20. 20.💾 Which is smaller: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
21. 21.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
22. 22.✋ Which can we touch: hardware or software? (a) software (b) hardware
23. 23.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
24. 24.What does it mean to move a file? (a) get rid of it (b) throw it away (c) see what is inside (d) put it in another place
25. 25.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 9 (d) 5
26. 26.True or false: RAM keeps photos for years. (a) False (b) True
27. 27.⌨️ In a word processor, what does Ctrl+Y do? (a) cut (b) undo (c) redo (d) paste
28. 28.💾 How many GB are there in 1 TB?
29. 29.Which file ending is a sound? (a) .jpg (b) .mkv (c) .mp4 (d) .wav
30. 30.💾 Which is bigger: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
31. 31.💾 Which is smaller: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
32. 32.Which of these is true of RAM? (a) keeps your saved files (b) keeps data when off (c) is temporary memory (d) keeps photos for years
33. 33.💾 How many bytes are there in 1 KB?
34. 34.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+C (d) Ctrl+V
35. 35.Which of these is an input device? (a) scanner (b) hard disk (c) speaker (d) pen drive
36. 36.📄 A file name ends in .gif. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
37. 37.Which shortcut do we press to select all? (a) Ctrl+Y (b) Ctrl+A (c) Ctrl+X (d) Ctrl+P
38. 38.⌨️ In a word processor, what does Ctrl+V do? (a) save (b) select all (c) paste (d) redo
39. 39.🔍 Which is the odd one out? (a) a computer game (b) a printer (c) a mouse (d) a keyboard
40. 40.💾 Which is bigger: 1 GB or 1 KB? (a) 1 GB (b) 1 KB

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