Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 788 · 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.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
2. 2.🖍️ Before we cut or copy text, we must first ___ it. (a) print (b) select (c) delete (d) save
3. 3.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
4. 4.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) print (c) paste (d) copy
5. 5.👩‍💻 What do we call people who write software? (a) farmers (b) tailors (c) programmers (d) plumbers
6. 6.💾 How many GB are there in 1 TB?
7. 7.True or false: Ctrl+A is the shortcut to select all. (a) True (b) False
8. 8.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) open (b) rename (c) save (d) create
9. 9.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Copy (c) Undo (d) Save
10. 10.🧩 Is a hard disk hardware or software? (a) software (b) hardware
11. 11.💾 How many bytes are there in 1 KB?
12. 12.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
13. 13.📁 Which word means to “throw it away” (for a file or folder)? (a) delete (b) rename (c) create (d) copy
14. 14.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) bit (d) byte
15. 15.True or false: a scanner is hardware. (a) True (b) False
16. 16.What does it mean to delete a file? (a) get rid of it (b) change its name (c) make a brand-new one (d) store your work
17. 17.True or false: to open a file means to see what is inside. (a) True (b) False
18. 18.Which shortcut do we press to redo? (a) Ctrl+Z (b) Ctrl+C (c) Ctrl+A (d) Ctrl+Y
19. 19.🧩 Is a webcam hardware or software? (a) software (b) hardware
20. 20.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an input device (c) an output device
21. 21.True or false: to save a file means to keep your work for later. (a) False (b) True
22. 22.Which file ending is a document? (a) .jpg (b) .png (c) .wav (d) .pdf
23. 23.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
24. 24.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
25. 25.💾 How many KB are there in 1 MB?
26. 26.🔍 Which is the odd one out? (a) printer (b) speaker (c) projector (d) scanner
27. 27.Which file ending is a sound? (a) .wav (b) .pdf (c) .png (d) .avi
28. 28.True or false: Ctrl+V is the shortcut to save. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a printer (b) a keyboard (c) a calculator app (d) a mouse
30. 30.Which of these is hardware? (a) a word processor (b) a computer game (c) a mouse (d) a web browser
31. 31.Which of these is hardware? (a) a word processor (b) a hard disk (c) a web browser (d) a music player app
32. 32.💾 How many MB are there in 1 GB?
33. 33.💾 Which is bigger: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
34. 34.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
35. 35.True or false: Ctrl+P is the shortcut to copy. (a) True (b) False
36. 36.✋ Which can we touch: hardware or software? (a) software (b) hardware
37. 37.🔍 Which is the odd one out? (a) solid-state drive (b) pen drive (c) speaker (d) memory card
38. 38.🧰 Is a pen drive a storage, input or output device? (a) an input device (b) an output device (c) a storage device
39. 39.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+Y (c) Ctrl+A (d) Ctrl+P
40. 40.🧰 Is a mouse a storage, input or output device? (a) an output device (b) an input device (c) a storage device

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