Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 756 · 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) hard disk (b) memory card (c) speaker (d) pen drive
2. 2.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) holds apps that are open (c) keeps photos for years (d) is the working memory
3. 3.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
4. 4.📄 What does a word processor help us do? (a) water plants (b) cook food (c) fly a kite (d) type and edit text
5. 5.📁 Which word means to “give it a new name” (for a file or folder)? (a) delete (b) save (c) move (d) rename
6. 6.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
7. 7.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
8. 8.🔍 Which is the odd one out? (a) a calculator app (b) a word processor (c) a web browser (d) a keyboard
9. 9.🔍 Which is the odd one out? (a) a typing tutor (b) an operating system (c) a paint program (d) a hard disk
10. 10.🧰 Is a scanner a storage, input or output device? (a) an input device (b) an output device (c) a storage device
11. 11.💾 How many MB are there in 3 GB?
12. 12.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the pen drive (c) the memory card (d) RAM
13. 13.📄 A file name ends in .avi. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
14. 14.True or false: a computer game is software. (a) True (b) False
15. 15.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device
16. 16.💾 Which is bigger: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
17. 17.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+A (c) Ctrl+C (d) Ctrl+P
18. 18.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an output device (c) an input device
19. 19.True or false: a calculator app is hardware. (a) True (b) False
20. 20.Which of these is a storage device? (a) speaker (b) solid-state drive (c) keyboard (d) microphone
21. 21.Which of these is hardware? (a) a hard disk (b) a word processor (c) a typing tutor (d) a music player app
22. 22.⌨️ In a word processor, what does Ctrl+X do? (a) undo (b) cut (c) select all (d) redo
23. 23.What does it mean to delete a file? (a) make a brand-new one (b) store your work (c) throw it away (d) put it in another place
24. 24.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
25. 25.Which shortcut do we press to select all? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+P (d) Ctrl+Z
26. 26.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
27. 27.What does it mean to rename a file? (a) change its name (b) throw it away (c) get rid of it (d) make an exact twin
28. 28.📁 Which word means to “keep your work for later” (for a file or folder)? (a) rename (b) save (c) copy (d) delete
29. 29.📄 A file name ends in .mkv. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
30. 30.✋ Which can we touch: hardware or software? (a) software (b) hardware
31. 31.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) KB (d) GB
32. 32.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a mouse (c) a pixel (d) a folder
33. 33.True or false: Ctrl+X is the shortcut to paste. (a) False (b) True
34. 34.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
35. 35.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) speaker (c) memory card (d) keyboard
36. 36.Which file ending is a video? (a) .avi (b) .pdf (c) .png (d) .jpg
37. 37.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Copy (c) Cut (d) Undo
38. 38.🔍 Which is the odd one out? (a) a monitor (b) a typing tutor (c) a calculator app (d) a paint program
39. 39.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Backspace (c) Undo (d) Delete
40. 40.True or false: a scanner is software. (a) True (b) False

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