Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 157 · 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 true of storage (like a hard disk)? (a) loses data when off (b) is permanent storage (c) is the working memory (d) is temporary memory
2. 2.💾 How many bits are there in 6 bytes?
3. 3.True or false: Ctrl+S is the shortcut to copy. (a) True (b) False
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.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Redo (c) Delete (d) Cut
6. 6.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
7. 7.🧩 Is a paint program hardware or software? (a) hardware (b) software
8. 8.🔍 Which is the odd one out? (a) a music player app (b) a paint program (c) a webcam (d) a web browser
9. 9.True or false: a typing tutor is hardware. (a) False (b) True
10. 10.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
11. 11.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
12. 12.Which of these is an input device? (a) pen drive (b) speaker (c) mouse (d) hard disk
13. 13.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) copy (c) delete (d) save
14. 14.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
15. 15.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) keeps photos for years (c) holds apps that are open (d) is temporary memory
16. 16.Which of these is hardware? (a) a computer game (b) an operating system (c) a paint program (d) a pen drive
17. 17.🧾 Software is a set of ___ for the computer. (a) instructions (b) wires (c) buttons (d) screws
18. 18.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) select all (c) cut (d) undo
19. 19.True or false: to open a file means to store your work. (a) False (b) True
20. 20.📁 Which word means to “get rid of it” (for a file or folder)? (a) save (b) copy (c) delete (d) rename
21. 21.Which file ending is a sound? (a) .txt (b) .avi (c) .mp3 (d) .gif
22. 22.What does it mean to rename a file? (a) put it in another place (b) keep your work for later (c) see what is inside (d) change its name
23. 23.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the pen drive (c) the memory card (d) the hard disk
24. 24.🔍 Which is the odd one out? (a) a typing tutor (b) a printer (c) a word processor (d) a calculator app
25. 25.🔍 Which is the odd one out? (a) hard disk (b) memory card (c) scanner (d) pen drive
26. 26.👩‍💻 What do we call people who write software? (a) programmers (b) tailors (c) farmers (d) plumbers
27. 27.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
28. 28.🔍 Which is the odd one out? (a) an operating system (b) a monitor (c) a calculator app (d) a music player app
29. 29.📄 A file name ends in .mkv. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
30. 30.🧩 Is a web browser hardware or software? (a) hardware (b) software
31. 31.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a speaker (d) a mouse
32. 32.🧰 Is a pen drive a storage, input or output device? (a) an output device (b) an input device (c) a storage device
33. 33.🧩 Is a computer game hardware or software? (a) hardware (b) software
34. 34.💾 How many KB are there in 3 MB?
35. 35.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+F (c) Ctrl+B (d) Ctrl+I
36. 36.Which of these is hardware? (a) a calculator app (b) a scanner (c) a paint program (d) a music player app
37. 37.💾 Which is bigger: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
38. 38.🧩 Is a webcam hardware or software? (a) software (b) hardware
39. 39.💾 How many MB are there in 1 GB?
40. 40.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device

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