Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 105 · 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 one is temporary memory: RAM or storage? (a) storage (b) RAM
2. 2.⌨️ In a word processor, what does Ctrl+Y do? (a) copy (b) undo (c) redo (d) print
3. 3.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 5 (d) 2
4. 4.▌ What is the blinking line that shows where you will type? (a) the toolbar (b) the icon (c) the cursor (d) the folder
5. 5.🏷️ Every file has a ___ so we can find it. (a) smell (b) taste (c) name (d) weight
6. 6.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) KB (d) bit
7. 7.📄 A file name ends in .wav. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
8. 8.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
9. 9.True or false: to move a file means to put it in another place. (a) True (b) False
10. 10.True or false: Ctrl+C is the shortcut to save. (a) True (b) False
11. 11.💾 Which is smaller: 1 TB or 1 MB? (a) 1 MB (b) 1 TB
12. 12.Which shortcut do we press to undo? (a) Ctrl+S (b) Ctrl+V (c) Ctrl+Z (d) Ctrl+X
13. 13.💾 How many MB are there in 3 GB?
14. 14.🧩 Is a keyboard hardware or software? (a) software (b) hardware
15. 15.True or false: a scanner is hardware. (a) False (b) True
16. 16.Which of these is hardware? (a) a web browser (b) a scanner (c) an operating system (d) a typing tutor
17. 17.True or false: to copy a file means to make an exact twin. (a) True (b) False
18. 18.Which shortcut do we press to copy? (a) Ctrl+V (b) Ctrl+X (c) Ctrl+C (d) Ctrl+P
19. 19.Which of these is a storage device? (a) monitor (b) printer (c) pen drive (d) mouse
20. 20.True or false: a hard disk is software. (a) False (b) True
21. 21.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a mouse (c) a speaker (d) a pixel
22. 22.💾 How many MB are there in 1 GB?
23. 23.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
24. 24.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) keeps photos for years (d) is temporary memory
25. 25.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) undo (c) paste (d) select all
26. 26.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+I (c) Ctrl+F (d) Ctrl+B
27. 27.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) paper storage (c) cloud storage (d) rain storage
28. 28.Which of these is hardware? (a) a typing tutor (b) a word processor (c) a speaker (d) a calculator app
29. 29.💾 How many bytes are there in 2 KB?
30. 30.True or false: a scanner is an input device. (a) True (b) False
31. 31.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
32. 32.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
33. 33.Which of these is an output device? (a) monitor (b) pen drive (c) mouse (d) microphone
34. 34.Which file ending is a sound? (a) .pdf (b) .gif (c) .mp3 (d) .jpg
35. 35.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
36. 36.🔍 Which is the odd one out? (a) a word processor (b) a typing tutor (c) a calculator app (d) a monitor
37. 37.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
38. 38.🔍 Which is the odd one out? (a) a hard disk (b) a webcam (c) a calculator app (d) a speaker
39. 39.🧰 Is a pen drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device
40. 40.What does it mean to copy a file? (a) keep your work for later (b) store your work (c) change its name (d) make an exact twin

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