Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 758 · 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 of these is a storage device? (a) microphone (b) projector (c) hard disk (d) speaker
2. 2.💾 Which is smaller: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
3. 3.🧩 Is a calculator app hardware or software? (a) software (b) hardware
4. 4.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
5. 5.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+F (c) Ctrl+I (d) Ctrl+U
6. 6.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
7. 7.True or false: Ctrl+P is the shortcut to select all. (a) True (b) False
8. 8.💾 Which is smaller: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
9. 9.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) RAM (c) the pen drive (d) the memory card
10. 10.True or false: Ctrl+Z is the shortcut to cut. (a) False (b) True
11. 11.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) copy (c) select all (d) paste
12. 12.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an output device (c) an input device
13. 13.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
14. 14.🔍 Which is the odd one out? (a) a monitor (b) a word processor (c) a calculator app (d) a computer game
15. 15.Which shortcut do we press to undo? (a) Ctrl+X (b) Ctrl+Y (c) Ctrl+V (d) Ctrl+Z
16. 16.🏷️ Every file has a ___ so we can find it. (a) smell (b) name (c) taste (d) weight
17. 17.💾 How many bytes are there in 4 KB?
18. 18.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+X (d) Ctrl+P
19. 19.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) a mouse (d) an operating system
20. 20.True or false: a speaker is an output device. (a) False (b) True
21. 21.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+X (c) Ctrl+V (d) Ctrl+Z
22. 22.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Undo (c) Print (d) Cut
23. 23.Which of these is hardware? (a) a typing tutor (b) a printer (c) a calculator app (d) a music player app
24. 24.🧩 Is a computer game hardware or software? (a) software (b) hardware
25. 25.⌨️ In a word processor, what does Ctrl+V do? (a) save (b) cut (c) select all (d) paste
26. 26.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
27. 27.True or false: a paint program is software. (a) False (b) True
28. 28.True or false: Ctrl+C is the shortcut to cut. (a) True (b) False
29. 29.Which of these is an input device? (a) keyboard (b) monitor (c) projector (d) speaker
30. 30.What does it mean to open a file? (a) see what is inside (b) store your work (c) give it a new name (d) change its name
31. 31.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
32. 32.Which file ending is a video? (a) .avi (b) .png (c) .mp3 (d) .gif
33. 33.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
34. 34.Which file ending is a picture? (a) .txt (b) .mp4 (c) .jpg (d) .mkv
35. 35.Which of these is software? (a) a keyboard (b) a mouse (c) an operating system (d) a printer
36. 36.🧰 Is a hard disk a storage, input or output device? (a) a storage device (b) an output device (c) an input device
37. 37.👩‍💻 What do we call people who write software? (a) farmers (b) programmers (c) plumbers (d) tailors
38. 38.True or false: to save a file means to store your work. (a) True (b) False
39. 39.True or false: Ctrl+Y is the shortcut to cut. (a) False (b) True
40. 40.💾 Which is bigger: 1 bit or 1 MB? (a) 1 MB (b) 1 bit

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