Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 578 · 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 the odd one out? (a) mouse (b) scanner (c) monitor (d) keyboard
2. 2.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 2 (d) 1
3. 3.🔍 Which is the odd one out? (a) a computer game (b) a webcam (c) a printer (d) a speaker
4. 4.True or false: Ctrl+X is the shortcut to redo. (a) False (b) True
5. 5.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Undo (c) Delete (d) Copy
6. 6.🔍 Which is the odd one out? (a) a word processor (b) a calculator app (c) a web browser (d) a monitor
7. 7.True or false: to rename a file means to make an exact twin. (a) True (b) False
8. 8.Which of these is an output device? (a) hard disk (b) mouse (c) monitor (d) solid-state drive
9. 9.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) save (c) redo (d) undo
10. 10.True or false: Ctrl+A is the shortcut to cut. (a) True (b) False
11. 11.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
12. 12.⌨️ In a word processor, what does Ctrl+C do? (a) save (b) paste (c) print (d) copy
13. 13.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) plumbers (d) tailors
14. 14.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+B (b) Ctrl+U (c) Ctrl+I (d) Ctrl+F
15. 15.Which of these is true of RAM? (a) keeps photos for years (b) keeps your saved files (c) keeps data when off (d) is temporary memory
16. 16.💾 Which is bigger: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
17. 17.True or false: a microphone is an input device. (a) True (b) False
18. 18.True or false: to delete a file means to store your work. (a) False (b) True
19. 19.📁 What do we call a folder inside another folder? (a) an icon (b) a big file (c) a subfolder (d) a printer
20. 20.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
21. 21.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) buttons (d) screws
22. 22.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
23. 23.💾 How many bytes are there in 4 KB?
24. 24.💾 How many bytes are there in 3 KB?
25. 25.🧩 Is a word processor hardware or software? (a) hardware (b) software
26. 26.True or false: storage (like a hard disk) holds apps that are open. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a keyboard (b) a pen drive (c) an operating system (d) a mouse
28. 28.🧩 Is a web browser hardware or software? (a) hardware (b) software
29. 29.What does it mean to copy a file? (a) see what is inside (b) get rid of it (c) make a brand-new one (d) make an exact twin
30. 30.💾 How many GB are there in 1 TB?
31. 31.💾 How many MB are there in 1 GB?
32. 32.💾 Which is smaller: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
33. 33.💾 Which is smaller: 1 GB or 1 KB? (a) 1 GB (b) 1 KB
34. 34.🧩 Is a webcam hardware or software? (a) hardware (b) software
35. 35.True or false: to rename a file means to give it a new name. (a) False (b) True
36. 36.What does it mean to open a file? (a) put it in another place (b) give it a new name (c) see what is inside (d) change its name
37. 37.💾 How many bits are there in 2 bytes?
38. 38.🔍 Which is the odd one out? (a) monitor (b) pen drive (c) projector (d) printer
39. 39.True or false: a webcam is hardware. (a) False (b) True
40. 40.Which of these is hardware? (a) a computer game (b) a word processor (c) a paint program (d) a scanner

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