Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 597 · 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 file ending is a picture? (a) .pdf (b) .avi (c) .txt (d) .png
2. 2.💾 How many MB are there in 1 GB?
3. 3.⌨️ In a word processor, what does Ctrl+A do? (a) print (b) select all (c) redo (d) save
4. 4.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
5. 5.🔍 Which is the odd one out? (a) a mouse (b) a scanner (c) a word processor (d) a monitor
6. 6.Which of these is software? (a) a scanner (b) a hard disk (c) a mouse (d) a calculator app
7. 7.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 1 (d) 2
8. 8.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) select all (c) save (d) undo
9. 9.💾 Which is bigger: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
10. 10.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) undo (c) copy (d) print
11. 11.▌ What is the blinking line that shows where you will type? (a) the icon (b) the toolbar (c) the cursor (d) the folder
12. 12.Which of these is hardware? (a) a music player app (b) a paint program (c) a word processor (d) a hard disk
13. 13.True or false: to save a file means to keep your work for later. (a) False (b) True
14. 14.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+I (c) Ctrl+B (d) Ctrl+U
15. 15.True or false: to open a file means to store your work. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a hard disk (b) a typing tutor (c) a printer (d) a webcam
17. 17.⌨️ In a word processor, what does Ctrl+Y do? (a) paste (b) copy (c) save (d) redo
18. 18.🧩 Is a word processor hardware or software? (a) software (b) hardware
19. 19.📄 A file name ends in .wav. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
20. 20.💾 How many bits are there in 6 bytes?
21. 21.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
22. 22.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) byte (d) GB
23. 23.True or false: RAM keeps photos for years. (a) True (b) False
24. 24.True or false: a speaker is hardware. (a) False (b) True
25. 25.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) create (b) move (c) open (d) save
26. 26.💾 How many bytes are there in 3 KB?
27. 27.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
28. 28.True or false: a paint program is software. (a) True (b) False
29. 29.💾 How many GB are there in 1 TB?
30. 30.Which of these is software? (a) a hard disk (b) a mouse (c) a music player app (d) a scanner
31. 31.Which file ending is a document? (a) .wav (b) .mp3 (c) .mkv (d) .pdf
32. 32.Which file ending is a picture? (a) .pdf (b) .avi (c) .gif (d) .mkv
33. 33.📁 What do we call a folder inside another folder? (a) a subfolder (b) a big file (c) a printer (d) an icon
34. 34.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
35. 35.True or false: a web browser is hardware. (a) False (b) True
36. 36.True or false: a mouse is hardware. (a) True (b) False
37. 37.Which of these is true of RAM? (a) is permanent storage (b) keeps your saved files (c) keeps data when off (d) loses data when off
38. 38.What does it mean to copy a file? (a) throw it away (b) make a brand-new one (c) make an exact twin (d) see what is inside
39. 39.What does it mean to create a file? (a) make a brand-new one (b) throw it away (c) get rid of it (d) give it a new name
40. 40.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False

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