Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 75 · 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.🧾 Software is a set of ___ for the computer. (a) screws (b) instructions (c) wires (d) buttons
2. 2.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
3. 3.True or false: RAM keeps photos for years. (a) True (b) False
4. 4.⌨️ In a word processor, what does Ctrl+Z do? (a) paste (b) redo (c) undo (d) print
5. 5.⚡ Which is faster for the computer to work with? (a) a memory card (b) a printer (c) a pen drive (d) RAM
6. 6.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
7. 7.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) print (c) copy (d) select all
8. 8.Which of these is an output device? (a) printer (b) pen drive (c) microphone (d) memory card
9. 9.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
10. 10.📄 A file name ends in .jpg. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
11. 11.Which of these is a storage device? (a) projector (b) microphone (c) keyboard (d) solid-state drive
12. 12.Which of these is true of RAM? (a) keeps your saved files (b) keeps data when off (c) is the working memory (d) is permanent storage
13. 13.📁 Which word means to “keep your work for later” (for a file or folder)? (a) save (b) rename (c) delete (d) copy
14. 14.💾 Which is bigger: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
15. 15.🔍 Which is the odd one out? (a) a monitor (b) a word processor (c) a calculator app (d) a web browser
16. 16.What does it mean to delete a file? (a) make a brand-new one (b) get rid of it (c) see what is inside (d) change its name
17. 17.True or false: a printer is an output device. (a) False (b) True
18. 18.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) copy (c) cut (d) paste
19. 19.True or false: Ctrl+Y is the shortcut to cut. (a) False (b) True
20. 20.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
21. 21.Which of these is software? (a) a monitor (b) a paint program (c) a keyboard (d) a hard disk
22. 22.True or false: a webcam is hardware. (a) False (b) True
23. 23.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
24. 24.Which file ending is a video? (a) .wav (b) .gif (c) .mp4 (d) .mp3
25. 25.True or false: a mouse is hardware. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) memory card (b) hard disk (c) solid-state drive (d) speaker
27. 27.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
28. 28.⌨️ In a word processor, what does Ctrl+Y do? (a) copy (b) redo (c) paste (d) print
29. 29.Which of these is a storage device? (a) printer (b) pen drive (c) projector (d) mouse
30. 30.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) speaker (d) keyboard
31. 31.💾 How many bytes are there in 2 KB?
32. 32.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) cut (c) paste (d) redo
33. 33.Which of these is true of RAM? (a) keeps data when off (b) keeps photos for years (c) is temporary memory (d) keeps your saved files
34. 34.🧩 Is a paint program hardware or software? (a) hardware (b) software
35. 35.True or false: a calculator app is software. (a) False (b) True
36. 36.💾 How many bits are there in 4 bytes?
37. 37.What does it mean to open a file? (a) see what is inside (b) make a brand-new one (c) throw it away (d) give it a new name
38. 38.💾 How many KB are there in 4 MB?
39. 39.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+U (d) Ctrl+F
40. 40.🔍 Which is the odd one out? (a) a calculator app (b) a scanner (c) a monitor (d) a pen drive

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