Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 561 · 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.🔍 Which is the odd one out? (a) a calculator app (b) a typing tutor (c) an operating system (d) a hard disk
2. 2.✋ Which can we touch: hardware or software? (a) hardware (b) software
3. 3.What does it mean to move a file? (a) see what is inside (b) put it in another place (c) change its name (d) give it a new name
4. 4.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
5. 5.📁 Which word means to “keep your work for later” (for a file or folder)? (a) rename (b) move (c) save (d) open
6. 6.🧩 Is a web browser hardware or software? (a) hardware (b) software
7. 7.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
8. 8.True or false: a speaker is hardware. (a) False (b) True
9. 9.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
10. 10.True or false: a scanner is an input device. (a) True (b) False
11. 11.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) bit (d) KB
12. 12.📄 What does a word processor help us do? (a) cook food (b) water plants (c) type and edit text (d) fly a kite
13. 13.📄 A file name ends in .jpg. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
14. 14.💾 How many bits are there in 2 bytes?
15. 15.💾 How many bytes are there in 2 KB?
16. 16.🔍 Which is the odd one out? (a) projector (b) monitor (c) printer (d) mouse
17. 17.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
18. 18.Which of these is an input device? (a) printer (b) scanner (c) speaker (d) hard disk
19. 19.💾 How many MB are there in 3 GB?
20. 20.💾 Which is smaller: 1 MB or 1 TB? (a) 1 MB (b) 1 TB
21. 21.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Cut (c) Redo (d) Copy
22. 22.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
23. 23.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
24. 24.💾 How many bytes are there in 3 KB?
25. 25.Which file ending is a video? (a) .gif (b) .txt (c) .wav (d) .mkv
26. 26.🧰 Is a speaker a storage, input or output device? (a) a storage device (b) an input device (c) an output device
27. 27.📄 A file name ends in .mp4. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
28. 28.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) paper storage (d) box storage
29. 29.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) select all (c) cut (d) redo
30. 30.True or false: Ctrl+X is the shortcut to copy. (a) True (b) False
31. 31.True or false: to create a file means to throw it away. (a) False (b) True
32. 32.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Copy (c) Undo (d) Save
33. 33.💾 Which is smaller: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
34. 34.💾 Which is bigger: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
35. 35.Which of these is software? (a) a printer (b) a keyboard (c) a webcam (d) a computer game
36. 36.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Backspace (c) Copy (d) Delete
37. 37.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) save (c) select (d) delete
38. 38.Which shortcut do we press to save? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+V (d) Ctrl+S
39. 39.💾 Which is smaller: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
40. 40.💾 Which is bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit

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