Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 921 · 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.☁️ Saving files on the internet to use from anywhere is called ___. (a) paper storage (b) box storage (c) rain storage (d) cloud storage
2. 2.💾 How many MB are there in 2 GB?
3. 3.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Cut (c) Copy (d) Redo
4. 4.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
5. 5.Which file ending is a document? (a) .png (b) .txt (c) .wav (d) .jpg
6. 6.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) select all (c) redo (d) cut
7. 7.🧩 Is a calculator app hardware or software? (a) hardware (b) software
8. 8.📁 Which word means to “throw it away” (for a file or folder)? (a) rename (b) copy (c) save (d) delete
9. 9.💾 How many KB are there in 1 MB?
10. 10.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the pen drive (c) RAM (d) the memory card
11. 11.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) save (c) paste (d) undo
12. 12.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
13. 13.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) bit (d) byte
14. 14.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 5 (d) 1
15. 15.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) instructions (d) wires
16. 16.💾 How many MB are there in 3 GB?
17. 17.💾 Which is smaller: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
18. 18.💾 How many GB are there in 2 TB?
19. 19.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) paste (c) save (d) print
20. 20.⚡ Which is faster for the computer to work with? (a) RAM (b) a pen drive (c) a printer (d) a memory card
21. 21.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
22. 22.🔍 Which is the odd one out? (a) a typing tutor (b) a scanner (c) a calculator app (d) a computer game
23. 23.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
24. 24.Which of these is software? (a) a hard disk (b) a web browser (c) a pen drive (d) a keyboard
25. 25.📁 Which word means to “put it in another place” (for a file or folder)? (a) rename (b) move (c) create (d) copy
26. 26.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+X (d) Ctrl+V
27. 27.True or false: an operating system is hardware. (a) False (b) True
28. 28.⌨️ In a word processor, what does Ctrl+Y do? (a) save (b) print (c) undo (d) redo
29. 29.True or false: a scanner is a storage device. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a calculator app (b) a computer game (c) a speaker (d) a typing tutor
31. 31.💾 How many bits are there in 9 bytes?
32. 32.🧰 Is a microphone a storage, input or output device? (a) a storage device (b) an input device (c) an output device
33. 33.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+I (c) Ctrl+U (d) Ctrl+B
34. 34.🔍 Which is the odd one out? (a) a webcam (b) a music player app (c) a monitor (d) a scanner
35. 35.Which of these is an input device? (a) pen drive (b) printer (c) monitor (d) scanner
36. 36.True or false: Ctrl+Z is the shortcut to cut. (a) True (b) False
37. 37.Which shortcut do we press to select all? (a) Ctrl+X (b) Ctrl+V (c) Ctrl+A (d) Ctrl+C
38. 38.🧩 Is a music player app hardware or software? (a) hardware (b) software
39. 39.True or false: a paint program is hardware. (a) False (b) True
40. 40.📁 Which word means to “give it a new name” (for a file or folder)? (a) copy (b) save (c) rename (d) delete

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