Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 228 · 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 the odd one out? (a) an operating system (b) a typing tutor (c) a music player app (d) a monitor
2. 2.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a pixel (c) a mouse (d) a folder
3. 3.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
4. 4.✋ Which can we touch: hardware or software? (a) software (b) hardware
5. 5.📁 Which word means to “give it a new name” (for a file or folder)? (a) delete (b) rename (c) save (d) move
6. 6.🧩 Is a paint program hardware or software? (a) software (b) hardware
7. 7.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) rename (b) save (c) create (d) copy
8. 8.🧩 Is a keyboard hardware or software? (a) software (b) hardware
9. 9.🧩 Is a hard disk hardware or software? (a) hardware (b) software
10. 10.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
11. 11.💾 How many KB are there in 4 MB?
12. 12.What does it mean to save a file? (a) throw it away (b) give it a new name (c) put it in another place (d) store your work
13. 13.Which of these is a storage device? (a) printer (b) memory card (c) mouse (d) microphone
14. 14.What does it mean to create a file? (a) put it in another place (b) make an exact twin (c) make a brand-new one (d) change its name
15. 15.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) byte (d) bit
16. 16.True or false: RAM holds apps that are open. (a) False (b) True
17. 17.💾 Which is smaller: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
18. 18.Which file ending is a document? (a) .avi (b) .mp3 (c) .mp4 (d) .txt
19. 19.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
20. 20.⌨️ In a word processor, what does Ctrl+C do? (a) undo (b) select all (c) cut (d) copy
21. 21.Which shortcut do we press to redo? (a) Ctrl+S (b) Ctrl+Z (c) Ctrl+Y (d) Ctrl+X
22. 22.🧩 Is a mouse hardware or software? (a) software (b) hardware
23. 23.🧩 Is a computer game hardware or software? (a) software (b) hardware
24. 24.💾 How many KB are there in 2 MB?
25. 25.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
26. 26.Which shortcut do we press to copy? (a) Ctrl+V (b) Ctrl+C (c) Ctrl+X (d) Ctrl+P
27. 27.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
28. 28.True or false: a word processor is hardware. (a) False (b) True
29. 29.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
30. 30.True or false: a scanner is hardware. (a) True (b) False
31. 31.True or false: a pen drive is software. (a) False (b) True
32. 32.💾 Which is smaller: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
33. 33.True or false: to open a file means to change its name. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a word processor (b) an operating system (c) a music player app (d) a keyboard
35. 35.True or false: to move a file means to put it in another place. (a) True (b) False
36. 36.💾 How many KB are there in 1 MB?
37. 37.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) water plants (d) type and edit text
38. 38.🔍 Which is the odd one out? (a) a web browser (b) a mouse (c) a computer game (d) a calculator app
39. 39.True or false: a calculator app is hardware. (a) True (b) False
40. 40.What does it mean to open a file? (a) keep your work for later (b) see what is inside (c) get rid of it (d) put it in another place

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