Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 606 · 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.💾 How many bytes are there in 2 KB?
2. 2.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
3. 3.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) byte (d) KB
4. 4.⌨️ In a word processor, what does Ctrl+C do? (a) select all (b) undo (c) cut (d) copy
5. 5.💾 How many KB are there in 2 MB?
6. 6.💾 Which is bigger: 1 MB or 1 KB? (a) 1 KB (b) 1 MB
7. 7.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 9 (d) 2
8. 8.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Cut (c) Save (d) Undo
9. 9.💾 Which is bigger: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
10. 10.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
11. 11.📁 Which word means to “keep your work for later” (for a file or folder)? (a) open (b) rename (c) create (d) save
12. 12.Which of these is hardware? (a) a calculator app (b) a pen drive (c) a typing tutor (d) an operating system
13. 13.True or false: to create a file means to make a brand-new one. (a) True (b) False
14. 14.⌨️ In a word processor, what does Ctrl+Y do? (a) cut (b) redo (c) select all (d) paste
15. 15.True or false: a scanner is software. (a) False (b) True
16. 16.True or false: a printer is software. (a) False (b) True
17. 17.📄 A file name ends in .jpg. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
18. 18.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
19. 19.💾 Which is smaller: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
20. 20.📁 Which word means to “change its name” (for a file or folder)? (a) move (b) save (c) create (d) rename
21. 21.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
22. 22.💾 How many GB are there in 1 TB?
23. 23.True or false: Ctrl+S is the shortcut to redo. (a) True (b) False
24. 24.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Undo (c) Cut (d) Print
25. 25.🏷️ Every file has a ___ so we can find it. (a) name (b) smell (c) weight (d) taste
26. 26.What does it mean to create a file? (a) keep your work for later (b) see what is inside (c) throw it away (d) make a brand-new one
27. 27.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) the memory card (c) RAM (d) the hard disk
28. 28.True or false: Ctrl+Y is the shortcut to copy. (a) False (b) True
29. 29.Which of these is hardware? (a) a webcam (b) a word processor (c) a web browser (d) a music player app
30. 30.✋ Which can we touch: hardware or software? (a) software (b) hardware
31. 31.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
32. 32.🔍 Which is the odd one out? (a) a webcam (b) a hard disk (c) a scanner (d) a web browser
33. 33.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
34. 34.⌨️ In a word processor, what does Ctrl+S do? (a) redo (b) select all (c) save (d) paste
35. 35.True or false: a hard disk is hardware. (a) False (b) True
36. 36.🧩 Is a computer game hardware or software? (a) hardware (b) software
37. 37.⌨️ In a word processor, what does Ctrl+Z do? (a) print (b) select all (c) redo (d) undo
38. 38.🧰 Is a mouse a storage, input or output device? (a) an output device (b) a storage device (c) an input device
39. 39.💾 How many bytes are there in 3 KB?
40. 40.💾 Which is smaller: 1 bit or 1 GB? (a) 1 bit (b) 1 GB

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