Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 399 · 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.What does it mean to open a file? (a) make an exact twin (b) put it in another place (c) give it a new name (d) see what is inside
2. 2.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 5 (d) 2
3. 3.💾 Which is smaller: 1 KB or 1 MB? (a) 1 MB (b) 1 KB
4. 4.True or false: a projector is an output device. (a) False (b) True
5. 5.True or false: a pen drive is an input device. (a) False (b) True
6. 6.True or false: Ctrl+X is the shortcut to copy. (a) True (b) False
7. 7.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) copy (c) redo (d) cut
8. 8.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+P (d) Ctrl+S
9. 9.Which shortcut do we press to save? (a) Ctrl+V (b) Ctrl+P (c) Ctrl+S (d) Ctrl+Z
10. 10.Which of these is an output device? (a) keyboard (b) solid-state drive (c) monitor (d) hard disk
11. 11.Which of these is true of storage (like a hard disk)? (a) keeps your saved files (b) is the working memory (c) loses data when off (d) is temporary memory
12. 12.True or false: to delete a file means to throw it away. (a) False (b) True
13. 13.👩‍💻 What do we call people who write software? (a) tailors (b) plumbers (c) programmers (d) farmers
14. 14.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
15. 15.🔍 Which is the odd one out? (a) a paint program (b) a web browser (c) a typing tutor (d) a mouse
16. 16.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) instructions (d) buttons
17. 17.🧩 Is a keyboard hardware or software? (a) hardware (b) software
18. 18.Which file ending is a video? (a) .pdf (b) .png (c) .mkv (d) .jpg
19. 19.Which of these is true of RAM? (a) keeps data when off (b) keeps your saved files (c) is the working memory (d) is permanent storage
20. 20.🏷️ Every file has a ___ so we can find it. (a) smell (b) name (c) weight (d) taste
21. 21.🧩 Is a music player app hardware or software? (a) software (b) hardware
22. 22.📄 A file name ends in .png. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
23. 23.Which shortcut do we press to paste? (a) Ctrl+Y (b) Ctrl+V (c) Ctrl+A (d) Ctrl+P
24. 24.💾 How many bits are there in 10 bytes?
25. 25.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
26. 26.🧩 Is a web browser hardware or software? (a) hardware (b) software
27. 27.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
28. 28.True or false: a typing tutor is software. (a) False (b) True
29. 29.✋ Which can we touch: hardware or software? (a) hardware (b) software
30. 30.🔍 Which is the odd one out? (a) a keyboard (b) a computer game (c) a printer (d) a pen drive
31. 31.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Undo (c) Delete (d) Cut
32. 32.⌨️ In a word processor, what does Ctrl+V do? (a) undo (b) redo (c) paste (d) print
33. 33.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+F (c) Ctrl+B (d) Ctrl+I
34. 34.🔍 Which is the odd one out? (a) a paint program (b) a webcam (c) a word processor (d) an operating system
35. 35.💾 How many bits are there in 3 bytes?
36. 36.What does it mean to copy a file? (a) put it in another place (b) see what is inside (c) throw it away (d) make an exact twin
37. 37.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) print (c) save (d) undo
38. 38.💾 Which is bigger: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
39. 39.True or false: a hard disk is a storage device. (a) True (b) False
40. 40.🧩 Is a paint program hardware or software? (a) software (b) hardware

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