Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 412 · 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.True or false: to rename a file means to store your work. (a) True (b) False
2. 2.True or false: Ctrl+Y is the shortcut to cut. (a) True (b) False
3. 3.Which shortcut do we press to copy? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+S (d) Ctrl+C
4. 4.Which of these is hardware? (a) a scanner (b) an operating system (c) a calculator app (d) a paint program
5. 5.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
6. 6.Which file ending is a picture? (a) .png (b) .pdf (c) .mkv (d) .txt
7. 7.🧰 Is a scanner a storage, input or output device? (a) an input device (b) an output device (c) a storage device
8. 8.True or false: to delete a file means to throw it away. (a) False (b) True
9. 9.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a speaker (c) a folder (d) a mouse
10. 10.🔍 Which is the odd one out? (a) a typing tutor (b) a paint program (c) a keyboard (d) a calculator app
11. 11.🧩 Is a monitor hardware or software? (a) hardware (b) software
12. 12.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Cut (c) Delete (d) Print
13. 13.🔍 Which is the odd one out? (a) speaker (b) microphone (c) scanner (d) keyboard
14. 14.Which file ending is a video? (a) .png (b) .gif (c) .jpg (d) .avi
15. 15.True or false: a music player app is hardware. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a hard disk (b) a mouse (c) a speaker (d) a calculator app
17. 17.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+B (c) Ctrl+F (d) Ctrl+U
18. 18.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) undo (c) cut (d) paste
19. 19.Which shortcut do we press to cut? (a) Ctrl+S (b) Ctrl+C (c) Ctrl+Y (d) Ctrl+X
20. 20.💾 Which is smaller: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
21. 21.Which of these is an output device? (a) pen drive (b) mouse (c) monitor (d) hard disk
22. 22.True or false: a hard disk is a storage device. (a) True (b) False
23. 23.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
24. 24.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
25. 25.🧩 Is a music player app hardware or software? (a) hardware (b) software
26. 26.🏷️ Every file has a ___ so we can find it. (a) taste (b) name (c) smell (d) weight
27. 27.💾 Which is smaller: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
28. 28.💾 How many bits are there in 4 bytes?
29. 29.What does it mean to delete a file? (a) change its name (b) throw it away (c) store your work (d) make a brand-new one
30. 30.🧩 Is a mouse hardware or software? (a) software (b) hardware
31. 31.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
32. 32.Which of these is an output device? (a) scanner (b) keyboard (c) hard disk (d) speaker
33. 33.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) plumbers (d) tailors
34. 34.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) type and edit text (d) water plants
35. 35.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+V
36. 36.Which of these is true of RAM? (a) keeps data when off (b) keeps your saved files (c) is permanent storage (d) is the working memory
37. 37.📁 Which word means to “put it in another place” (for a file or folder)? (a) save (b) move (c) create (d) copy
38. 38.💾 How many bits are there in 12 bytes?
39. 39.Which file ending is a sound? (a) .png (b) .wav (c) .txt (d) .gif
40. 40.🧰 Is a hard disk a storage, input or output device? (a) an output device (b) an input device (c) a storage device

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