Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 470 · 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.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Copy (d) Cut
2. 2.💾 How many KB are there in 2 MB?
3. 3.🧩 Is a monitor hardware or software? (a) software (b) hardware
4. 4.Which of these is true of RAM? (a) keeps photos for years (b) keeps your saved files (c) is permanent storage (d) holds apps that are open
5. 5.🔍 Which is the odd one out? (a) a calculator app (b) a webcam (c) a speaker (d) a scanner
6. 6.💾 How many bits are there in 1 byte?
7. 7.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
8. 8.📁 Which word means to “throw it away” (for a file or folder)? (a) rename (b) save (c) delete (d) copy
9. 9.🧩 Is a music player app hardware or software? (a) software (b) hardware
10. 10.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a big file (d) a subfolder
11. 11.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
12. 12.▌ What is the blinking line that shows where you will type? (a) the toolbar (b) the cursor (c) the icon (d) the folder
13. 13.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+B (c) Ctrl+U (d) Ctrl+F
14. 14.💾 How many bytes are there in 2 KB?
15. 15.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
16. 16.📷 A camera keeps its photos on a small ___. (a) keyboard (b) memory card (c) speaker (d) mouse pad
17. 17.True or false: a printer is an output device. (a) True (b) False
18. 18.💾 How many MB are there in 3 GB?
19. 19.Which file ending is a picture? (a) .pdf (b) .jpg (c) .mkv (d) .avi
20. 20.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) KB (d) GB
21. 21.🔍 Which is the odd one out? (a) solid-state drive (b) projector (c) hard disk (d) memory card
22. 22.📁 Which word means to “give it a new name” (for a file or folder)? (a) create (b) delete (c) open (d) rename
23. 23.💾 How many bits are there in 7 bytes?
24. 24.🔍 Which is the odd one out? (a) memory card (b) monitor (c) solid-state drive (d) hard disk
25. 25.🧩 Is a printer hardware or software? (a) software (b) hardware
26. 26.🔍 Which is the odd one out? (a) a paint program (b) a printer (c) a computer game (d) a web browser
27. 27.🧩 Is a typing tutor hardware or software? (a) software (b) hardware
28. 28.What does it mean to copy a file? (a) get rid of it (b) make an exact twin (c) see what is inside (d) change its name
29. 29.⚡ Which is faster for the computer to work with? (a) a pen drive (b) a printer (c) RAM (d) a memory card
30. 30.🖍️ Before we cut or copy text, we must first ___ it. (a) delete (b) select (c) print (d) save
31. 31.Which of these is software? (a) a web browser (b) a scanner (c) a pen drive (d) a mouse
32. 32.🧩 Is a scanner hardware or software? (a) hardware (b) software
33. 33.📁 Which word means to “keep your work for later” (for a file or folder)? (a) save (b) delete (c) rename (d) copy
34. 34.🧰 Is a pen drive a storage, input or output device? (a) an input device (b) an output device (c) a storage device
35. 35.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) keeps data when off (c) holds apps that are open (d) loses data when off
36. 36.💾 How many bits are there in 4 bytes?
37. 37.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
38. 38.Which of these is hardware? (a) a web browser (b) a monitor (c) a typing tutor (d) a computer game
39. 39.True or false: storage (like a hard disk) keeps data when off. (a) True (b) False
40. 40.💾 How many bits are there in 2 bytes?

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