Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 12 · 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 file ending is a video? (a) .txt (b) .gif (c) .png (d) .mp4
2. 2.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
3. 3.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
4. 4.🔍 Which is the odd one out? (a) printer (b) mouse (c) keyboard (d) scanner
5. 5.Which shortcut do we press to copy? (a) Ctrl+S (b) Ctrl+P (c) Ctrl+C (d) Ctrl+V
6. 6.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
7. 7.💾 Which is bigger: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
8. 8.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
9. 9.🧰 Is a microphone a storage, input or output device? (a) a storage device (b) an input device (c) an output device
10. 10.Which file ending is a sound? (a) .pdf (b) .wav (c) .txt (d) .png
11. 11.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+I (c) Ctrl+F (d) Ctrl+U
12. 12.💾 Which is smaller: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
13. 13.🧾 Software is a set of ___ for the computer. (a) screws (b) wires (c) instructions (d) buttons
14. 14.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
15. 15.Which of these is software? (a) a printer (b) a mouse (c) a typing tutor (d) a scanner
16. 16.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device
17. 17.True or false: to open a file means to give it a new name. (a) True (b) False
18. 18.Which shortcut do we press to cut? (a) Ctrl+P (b) Ctrl+V (c) Ctrl+S (d) Ctrl+X
19. 19.Which of these is software? (a) a scanner (b) a monitor (c) a web browser (d) a speaker
20. 20.True or false: to open a file means to see what is inside. (a) True (b) False
21. 21.📁 Which word means to “get rid of it” (for a file or folder)? (a) rename (b) save (c) delete (d) create
22. 22.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
23. 23.✋ Which can we touch: hardware or software? (a) hardware (b) software
24. 24.💾 How many GB are there in 1 TB?
25. 25.📁 Which word means to “keep your work for later” (for a file or folder)? (a) save (b) rename (c) create (d) move
26. 26.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
27. 27.Which of these is software? (a) a hard disk (b) a speaker (c) a printer (d) a music player app
28. 28.📷 A camera keeps its photos on a small ___. (a) speaker (b) keyboard (c) memory card (d) mouse pad
29. 29.🔍 Which is the odd one out? (a) speaker (b) monitor (c) hard disk (d) printer
30. 30.What does it mean to open a file? (a) change its name (b) keep your work for later (c) get rid of it (d) see what is inside
31. 31.True or false: Ctrl+A is the shortcut to select all. (a) False (b) True
32. 32.💾 How many MB are there in 1 GB?
33. 33.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) cut (c) select all (d) copy
34. 34.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
35. 35.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
36. 36.💾 Which is smaller: 1 GB or 1 bit? (a) 1 bit (b) 1 GB
37. 37.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) paste (c) print (d) undo
38. 38.🔍 Which is the odd one out? (a) a keyboard (b) a printer (c) a hard disk (d) a calculator app
39. 39.Which file ending is a sound? (a) .gif (b) .mp3 (c) .jpg (d) .txt
40. 40.Which shortcut do we press to undo? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+X (d) Ctrl+V

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