Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 860 · 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 shortcut do we press to select all? (a) Ctrl+P (b) Ctrl+V (c) Ctrl+C (d) Ctrl+A
2. 2.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+U (c) Ctrl+B (d) Ctrl+F
3. 3.⌨️ In a word processor, what does Ctrl+Y do? (a) cut (b) redo (c) print (d) select all
4. 4.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
5. 5.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
6. 6.📄 A file name ends in .jpg. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
7. 7.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) byte (d) GB
8. 8.🧰 Is a projector a storage, input or output device? (a) an output device (b) a storage device (c) an input device
9. 9.True or false: to delete a file means to get rid of it. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) scanner (b) keyboard (c) microphone (d) projector
11. 11.⌨️ In a word processor, what does Ctrl+A do? (a) paste (b) save (c) select all (d) cut
12. 12.Which shortcut do we press to cut? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+C (d) Ctrl+S
13. 13.🧩 Is a printer hardware or software? (a) software (b) hardware
14. 14.Which of these is hardware? (a) a calculator app (b) a pen drive (c) a paint program (d) a web browser
15. 15.🧰 Is a hard disk a storage, input or output device? (a) an input device (b) an output device (c) a storage device
16. 16.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) save (c) delete (d) select
17. 17.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a pixel (c) a speaker (d) a folder
18. 18.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) tailors (d) programmers
19. 19.📁 Which word means to “get rid of it” (for a file or folder)? (a) move (b) rename (c) delete (d) create
20. 20.✋ Which can we touch: hardware or software? (a) hardware (b) software
21. 21.Which shortcut do we press to print? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+X (d) Ctrl+P
22. 22.⌨️ In a word processor, what does Ctrl+P do? (a) undo (b) select all (c) paste (d) print
23. 23.Which file ending is a picture? (a) .mp3 (b) .pdf (c) .gif (d) .avi
24. 24.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
25. 25.What does it mean to delete a file? (a) change its name (b) store your work (c) throw it away (d) make a brand-new one
26. 26.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
27. 27.Which file ending is a document? (a) .jpg (b) .wav (c) .gif (d) .txt
28. 28.True or false: a solid-state drive is a storage device. (a) True (b) False
29. 29.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
30. 30.What does it mean to copy a file? (a) store your work (b) make an exact twin (c) see what is inside (d) give it a new name
31. 31.💾 How many bytes are there in 3 KB?
32. 32.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
33. 33.⌨️ In a word processor, what does Ctrl+C do? (a) save (b) select all (c) copy (d) paste
34. 34.True or false: RAM is the working memory. (a) True (b) False
35. 35.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
36. 36.Which of these is software? (a) a mouse (b) a paint program (c) a webcam (d) a pen drive
37. 37.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
38. 38.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
39. 39.⌨️ In a word processor, what does Ctrl+S do? (a) undo (b) redo (c) paste (d) save
40. 40.💾 How many bits are there in 3 bytes?

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