Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 576 · 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 is bigger: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
2. 2.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
3. 3.🔍 Which is the odd one out? (a) a paint program (b) an operating system (c) a monitor (d) a word processor
4. 4.🧰 Is a microphone a storage, input or output device? (a) an input device (b) a storage device (c) an output device
5. 5.📁 Which word means to “see what is inside” (for a file or folder)? (a) rename (b) create (c) open (d) delete
6. 6.True or false: storage (like a hard disk) keeps data when off. (a) True (b) False
7. 7.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
8. 8.True or false: a calculator app is hardware. (a) True (b) False
9. 9.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
10. 10.True or false: an operating system is hardware. (a) True (b) False
11. 11.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
12. 12.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Backspace (c) Undo (d) Copy
13. 13.🏷️ Every file has a ___ so we can find it. (a) weight (b) name (c) smell (d) taste
14. 14.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) holds apps that are open (c) loses data when off (d) keeps photos for years
15. 15.⌨️ In a word processor, what does Ctrl+Z do? (a) copy (b) print (c) select all (d) undo
16. 16.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
17. 17.💾 How many GB are there in 2 TB?
18. 18.Which file ending is a sound? (a) .mp4 (b) .gif (c) .jpg (d) .mp3
19. 19.True or false: a mouse is hardware. (a) True (b) False
20. 20.Which shortcut do we press to copy? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+C (d) Ctrl+S
21. 21.💾 How many KB are there in 2 MB?
22. 22.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
23. 23.💾 Which is bigger: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
24. 24.True or false: a hard disk is an output device. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a music player app (b) a webcam (c) a computer game (d) a paint program
26. 26.Which of these is software? (a) a scanner (b) a typing tutor (c) a speaker (d) a hard disk
27. 27.True or false: a hard disk is an input device. (a) True (b) False
28. 28.💾 Which is bigger: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
29. 29.Which of these is a storage device? (a) mouse (b) microphone (c) memory card (d) scanner
30. 30.🧩 Is a keyboard hardware or software? (a) software (b) hardware
31. 31.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False
32. 32.Which shortcut do we press to print? (a) Ctrl+X (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+Y
33. 33.Which shortcut do we press to save? (a) Ctrl+P (b) Ctrl+Z (c) Ctrl+S (d) Ctrl+V
34. 34.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) byte (d) KB
35. 35.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
36. 36.True or false: to rename a file means to keep your work for later. (a) True (b) False
37. 37.📁 Which word means to “store your work” (for a file or folder)? (a) delete (b) rename (c) move (d) save
38. 38.💾 How many bits are there in 1 byte?
39. 39.True or false: to move a file means to put it in another place. (a) False (b) True
40. 40.True or false: a speaker is an input device. (a) True (b) False

Free computer lessons, practice and worksheets at talentjr.in/computer-worksheets