Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 345 · 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) an operating system (b) a computer game (c) a calculator app (d) a scanner
2. 2.Which file ending is a video? (a) .mp4 (b) .mp3 (c) .wav (d) .txt
3. 3.Which file ending is a video? (a) .jpg (b) .pdf (c) .wav (d) .avi
4. 4.💾 How many MB are there in 2 GB?
5. 5.📁 What do we call a folder inside another folder? (a) an icon (b) a big file (c) a subfolder (d) a printer
6. 6.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) undo (c) select all (d) paste
7. 7.Which file ending is a document? (a) .wav (b) .png (c) .mp3 (d) .pdf
8. 8.True or false: to save a file means to get rid of it. (a) False (b) True
9. 9.🧩 Is a computer game hardware or software? (a) hardware (b) software
10. 10.📁 Which word means to “change its name” (for a file or folder)? (a) open (b) rename (c) create (d) move
11. 11.💾 How many GB are there in 1 TB?
12. 12.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
13. 13.Which of these is hardware? (a) a word processor (b) a printer (c) a web browser (d) an operating system
14. 14.True or false: to delete a file means to throw it away. (a) False (b) True
15. 15.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
16. 16.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
17. 17.Which of these is software? (a) a keyboard (b) a web browser (c) a webcam (d) a pen drive
18. 18.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
19. 19.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) keeps photos for years (c) is the working memory (d) is temporary memory
20. 20.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
21. 21.💾 Which is bigger: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
22. 22.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
23. 23.Which file ending is a picture? (a) .mp4 (b) .avi (c) .mkv (d) .png
24. 24.📁 Which word means to “keep your work for later” (for a file or folder)? (a) move (b) save (c) copy (d) delete
25. 25.🏷️ Every file has a ___ so we can find it. (a) name (b) smell (c) taste (d) weight
26. 26.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
27. 27.✋ Which can we touch: hardware or software? (a) software (b) hardware
28. 28.Which of these is hardware? (a) a calculator app (b) a hard disk (c) a music player app (d) a word processor
29. 29.📄 What does a word processor help us do? (a) type and edit text (b) fly a kite (c) cook food (d) water plants
30. 30.⌨️ In a word processor, what does Ctrl+V do? (a) select all (b) save (c) paste (d) cut
31. 31.True or false: Ctrl+A is the shortcut to cut. (a) True (b) False
32. 32.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+B (c) Ctrl+I (d) Ctrl+F
33. 33.💾 How many bytes are there in 3 KB?
34. 34.Which shortcut do we press to copy? (a) Ctrl+X (b) Ctrl+V (c) Ctrl+P (d) Ctrl+C
35. 35.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) rename (c) delete (d) save
36. 36.True or false: Ctrl+A is the shortcut to select all. (a) False (b) True
37. 37.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
38. 38.True or false: a pen drive is software. (a) True (b) False
39. 39.💾 How many bits are there in 2 bytes?
40. 40.Which of these is software? (a) a word processor (b) a keyboard (c) a mouse (d) a hard disk

Free computer lessons, practice and worksheets at talentjr.in/computer-worksheets