Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 222 · 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 1 KB?
2. 2.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
3. 3.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
4. 4.📄 What does a word processor help us do? (a) fly a kite (b) type and edit text (c) cook food (d) water plants
5. 5.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
6. 6.Which shortcut do we press to save? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+S (d) Ctrl+A
7. 7.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
8. 8.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
9. 9.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
10. 10.🧩 Is a calculator app hardware or software? (a) hardware (b) software
11. 11.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Print (c) Delete (d) Cut
12. 12.🧾 Software is a set of ___ for the computer. (a) screws (b) buttons (c) instructions (d) wires
13. 13.What does it mean to copy a file? (a) give it a new name (b) make an exact twin (c) get rid of it (d) keep your work for later
14. 14.What does it mean to move a file? (a) keep your work for later (b) put it in another place (c) throw it away (d) get rid of it
15. 15.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
16. 16.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
17. 17.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) a typing tutor (d) a monitor
18. 18.What does it mean to create a file? (a) make an exact twin (b) make a brand-new one (c) give it a new name (d) change its name
19. 19.💾 Which is bigger: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
20. 20.🔍 Which is the odd one out? (a) printer (b) memory card (c) projector (d) monitor
21. 21.Which file ending is a video? (a) .mp3 (b) .mkv (c) .pdf (d) .gif
22. 22.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) GB (d) bit
23. 23.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
24. 24.💾 How many MB are there in 2 GB?
25. 25.💾 How many KB are there in 2 MB?
26. 26.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Undo (c) Save (d) Cut
27. 27.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) print (c) cut (d) redo
28. 28.True or false: a printer is software. (a) False (b) True
29. 29.💾 How many GB are there in 2 TB?
30. 30.Which of these is hardware? (a) a music player app (b) a printer (c) a word processor (d) a typing tutor
31. 31.What does it mean to save a file? (a) keep your work for later (b) get rid of it (c) make a brand-new one (d) see what is inside
32. 32.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) save (c) undo (d) select all
33. 33.True or false: a word processor is hardware. (a) False (b) True
34. 34.Which file ending is a picture? (a) .txt (b) .wav (c) .mkv (d) .gif
35. 35.⌨️ In a word processor, what does Ctrl+S do? (a) paste (b) cut (c) print (d) save
36. 36.🔍 Which is the odd one out? (a) a scanner (b) a paint program (c) a webcam (d) a mouse
37. 37.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) tailors (d) programmers
38. 38.True or false: Ctrl+P is the shortcut to print. (a) True (b) False
39. 39.True or false: to create a file means to make an exact twin. (a) False (b) True
40. 40.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) keeps your saved files (c) is temporary memory (d) loses data when off

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