Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 11 · 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.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
2. 2.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
3. 3.What does it mean to open a file? (a) give it a new name (b) see what is inside (c) store your work (d) change its name
4. 4.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) save (c) redo (d) paste
5. 5.True or false: Ctrl+S is the shortcut to select all. (a) True (b) False
6. 6.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a subfolder (d) a big file
7. 7.True or false: to save a file means to put it in another place. (a) False (b) True
8. 8.True or false: a music player app is software. (a) False (b) True
9. 9.True or false: Ctrl+S is the shortcut to print. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) an operating system (d) a monitor
11. 11.Which file ending is a sound? (a) .gif (b) .png (c) .jpg (d) .mp3
12. 12.💾 Which is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
13. 13.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+F (d) Ctrl+U
14. 14.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) undo (c) copy (d) cut
15. 15.💾 How many bytes are there in 1 KB?
16. 16.Which file ending is a document? (a) .avi (b) .gif (c) .png (d) .pdf
17. 17.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
18. 18.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
19. 19.🧩 Is a mouse hardware or software? (a) hardware (b) software
20. 20.👩‍💻 What do we call people who write software? (a) tailors (b) programmers (c) plumbers (d) farmers
21. 21.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) loses data when off (c) is temporary memory (d) keeps your saved files
22. 22.True or false: a pen drive is hardware. (a) True (b) False
23. 23.What does it mean to create a file? (a) make an exact twin (b) make a brand-new one (c) keep your work for later (d) give it a new name
24. 24.💾 Which is bigger: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
25. 25.🧰 Is a keyboard a storage, input or output device? (a) an output device (b) a storage device (c) an input device
26. 26.True or false: a monitor is a storage device. (a) True (b) False
27. 27.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
28. 28.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) cut (c) redo (d) copy
29. 29.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
30. 30.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
31. 31.True or false: a pen drive is software. (a) True (b) False
32. 32.🧾 Software is a set of ___ for the computer. (a) instructions (b) screws (c) buttons (d) wires
33. 33.Which of these is an input device? (a) monitor (b) hard disk (c) mouse (d) memory card
34. 34.What does it mean to delete a file? (a) give it a new name (b) make an exact twin (c) store your work (d) throw it away
35. 35.💾 How many bits are there in 3 bytes?
36. 36.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 9 (d) 2
37. 37.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
38. 38.💾 How many MB are there in 1 GB?
39. 39.Which of these is true of RAM? (a) keeps your saved files (b) keeps data when off (c) holds apps that are open (d) keeps photos for years
40. 40.💾 How many bits are there in 10 bytes?

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