Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 541 · 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.📄 A file name ends in .wav. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
2. 2.💾 How many KB are there in 1 MB?
3. 3.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
4. 4.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
5. 5.True or false: a solid-state drive is a storage device. (a) False (b) True
6. 6.Which of these is a storage device? (a) printer (b) mouse (c) hard disk (d) scanner
7. 7.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
8. 8.Which file ending is a video? (a) .gif (b) .mp4 (c) .jpg (d) .mp3
9. 9.⚡ Which is faster for the computer to work with? (a) a printer (b) a memory card (c) RAM (d) a pen drive
10. 10.🧩 Is a hard disk hardware or software? (a) hardware (b) software
11. 11.True or false: a web browser is software. (a) False (b) True
12. 12.🧰 Is a projector a storage, input or output device? (a) a storage device (b) an output device (c) an input device
13. 13.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
14. 14.🔍 Which is the odd one out? (a) monitor (b) projector (c) mouse (d) speaker
15. 15.True or false: a pen drive is hardware. (a) False (b) True
16. 16.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) paste (c) save (d) cut
17. 17.True or false: a scanner is hardware. (a) False (b) True
18. 18.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+V (d) Ctrl+A
19. 19.📄 A file name ends in .avi. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
20. 20.🏷️ Every file has a ___ so we can find it. (a) taste (b) weight (c) name (d) smell
21. 21.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
22. 22.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) rain storage (c) paper storage (d) cloud storage
23. 23.True or false: storage (like a hard disk) keeps data when off. (a) False (b) True
24. 24.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) cut (c) select all (d) print
25. 25.True or false: a projector is an output device. (a) False (b) True
26. 26.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
27. 27.✋ Which can we touch: hardware or software? (a) software (b) hardware
28. 28.Which of these is hardware? (a) a keyboard (b) a web browser (c) a typing tutor (d) a music player app
29. 29.💾 Which is smaller: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
30. 30.💾 How many bits are there in 12 bytes?
31. 31.▌ What is the blinking line that shows where you will type? (a) the folder (b) the toolbar (c) the icon (d) the cursor
32. 32.📁 Which word means to “get rid of it” (for a file or folder)? (a) move (b) copy (c) rename (d) delete
33. 33.🧩 Is a pen drive hardware or software? (a) software (b) hardware
34. 34.💾 How many MB are there in 2 GB?
35. 35.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
36. 36.📁 What do we call a folder inside another folder? (a) an icon (b) a printer (c) a big file (d) a subfolder
37. 37.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) open (b) copy (c) create (d) save
38. 38.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
39. 39.True or false: a hard disk is a storage device. (a) True (b) False
40. 40.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) holds apps that are open (c) is permanent storage (d) is temporary memory

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