Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 859 · 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.💾 How many bits are there in 12 bytes?
2. 2.What does it mean to create a file? (a) change its name (b) throw it away (c) make a brand-new one (d) see what is inside
3. 3.Which of these is hardware? (a) a mouse (b) a computer game (c) a web browser (d) an operating system
4. 4.What does it mean to rename a file? (a) throw it away (b) give it a new name (c) keep your work for later (d) store your work
5. 5.🧩 Is a paint program hardware or software? (a) software (b) hardware
6. 6.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) speaker (c) memory card (d) keyboard
7. 7.Which of these is hardware? (a) a typing tutor (b) a scanner (c) a calculator app (d) a word processor
8. 8.👩‍💻 What do we call people who write software? (a) tailors (b) plumbers (c) programmers (d) farmers
9. 9.🔍 Which is the odd one out? (a) a webcam (b) a pen drive (c) a word processor (d) a speaker
10. 10.Which shortcut do we press to save? (a) Ctrl+Y (b) Ctrl+P (c) Ctrl+S (d) Ctrl+Z
11. 11.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+A (d) Ctrl+X
12. 12.📄 A file name ends in .wav. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
13. 13.💾 How many MB are there in 3 GB?
14. 14.⌨️ In a word processor, what does Ctrl+Z do? (a) paste (b) save (c) undo (d) print
15. 15.True or false: a microphone is an output device. (a) False (b) True
16. 16.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) select all (c) paste (d) save
17. 17.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
18. 18.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Cut (d) Redo
19. 19.What does it mean to save a file? (a) store your work (b) throw it away (c) give it a new name (d) change its name
20. 20.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) rename (b) create (c) move (d) open
21. 21.🧩 Is a calculator app hardware or software? (a) hardware (b) software
22. 22.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
23. 23.💾 Which is smaller: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
24. 24.What does it mean to open a file? (a) give it a new name (b) change its name (c) see what is inside (d) store your work
25. 25.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an output device (c) an input device
26. 26.What does it mean to rename a file? (a) keep your work for later (b) see what is inside (c) change its name (d) get rid of it
27. 27.Which file ending is a document? (a) .pdf (b) .jpg (c) .gif (d) .mp3
28. 28.Which file ending is a sound? (a) .jpg (b) .avi (c) .mp4 (d) .wav
29. 29.Which of these is a storage device? (a) keyboard (b) projector (c) microphone (d) solid-state drive
30. 30.⌨️ In a word processor, what does Ctrl+C do? (a) print (b) paste (c) undo (d) copy
31. 31.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
32. 32.🔍 Which is the odd one out? (a) memory card (b) pen drive (c) hard disk (d) microphone
33. 33.True or false: to rename a file means to give it a new name. (a) True (b) False
34. 34.Which of these is software? (a) an operating system (b) a keyboard (c) a monitor (d) a hard disk
35. 35.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
36. 36.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) loses data when off (c) is permanent storage (d) holds apps that are open
37. 37.💾 Which is bigger: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
38. 38.True or false: a computer game is hardware. (a) True (b) False
39. 39.🧩 Is a monitor hardware or software? (a) software (b) hardware
40. 40.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the memory card (c) RAM (d) the pen drive

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