Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 53 · 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 do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
2. 2.True or false: a typing tutor is hardware. (a) True (b) False
3. 3.Which of these is hardware? (a) a mouse (b) a calculator app (c) a typing tutor (d) a paint program
4. 4.True or false: RAM is temporary memory. (a) True (b) False
5. 5.💾 Which is smaller: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
6. 6.Which of these is hardware? (a) a web browser (b) a paint program (c) a word processor (d) a pen drive
7. 7.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
8. 8.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
9. 9.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
10. 10.Which of these is true of RAM? (a) holds apps that are open (b) keeps your saved files (c) keeps data when off (d) is permanent storage
11. 11.📁 Which word means to “throw it away” (for a file or folder)? (a) create (b) rename (c) delete (d) save
12. 12.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
13. 13.What does it mean to rename a file? (a) see what is inside (b) make an exact twin (c) change its name (d) make a brand-new one
14. 14.Which of these is an input device? (a) solid-state drive (b) hard disk (c) mouse (d) speaker
15. 15.True or false: a printer is hardware. (a) True (b) False
16. 16.📄 A file name ends in .png. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
17. 17.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
18. 18.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Delete (c) Copy (d) Redo
19. 19.Which of these is a storage device? (a) microphone (b) printer (c) scanner (d) solid-state drive
20. 20.Which shortcut do we press to undo? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+C
21. 21.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
22. 22.💾 How many bits are there in 8 bytes?
23. 23.💾 How many KB are there in 1 MB?
24. 24.💾 Which is smaller: 1 GB or 1 bit? (a) 1 bit (b) 1 GB
25. 25.🔍 Which is the odd one out? (a) a speaker (b) a computer game (c) a pen drive (d) a monitor
26. 26.True or false: a music player app is software. (a) True (b) False
27. 27.🧰 Is a scanner a storage, input or output device? (a) an input device (b) a storage device (c) an output device
28. 28.💾 How many GB are there in 2 TB?
29. 29.⌨️ In a word processor, what does Ctrl+V do? (a) cut (b) copy (c) select all (d) paste
30. 30.🔍 Which is the odd one out? (a) an operating system (b) a paint program (c) a calculator app (d) a hard disk
31. 31.🔍 Which is the odd one out? (a) a web browser (b) a mouse (c) a scanner (d) a hard disk
32. 32.📄 A file name ends in .pdf. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
33. 33.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) open (b) rename (c) copy (d) create
34. 34.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
35. 35.⌨️ In a word processor, what does Ctrl+P do? (a) undo (b) copy (c) redo (d) print
36. 36.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
37. 37.💾 Which is bigger: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
38. 38.Which file ending is a picture? (a) .pdf (b) .mp3 (c) .txt (d) .jpg
39. 39.Which file ending is a picture? (a) .mp3 (b) .pdf (c) .png (d) .txt
40. 40.True or false: a word processor is software. (a) True (b) False

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