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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 424 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.⚡ Which is faster for the computer to work with? (a) a memory card (b) RAM (c) a printer (d) a pen drive
  2. 2.Which file ending is a document? (a) .txt (b) .png (c) .wav (d) .jpg
  3. 3.🧾 Software is a set of ___ for the computer. (a) screws (b) buttons (c) wires (d) instructions
  4. 4.💾 Which is bigger: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
  5. 5.Which of these is a storage device? (a) speaker (b) scanner (c) mouse (d) pen drive
  6. 6.💾 How many bytes are there in 1 KB?
  7. 7.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 5 (d) 2
  8. 8.True or false: to open a file means to see what is inside. (a) True (b) False
  9. 9.📄 A file name ends in .wav. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
  10. 10.Which of these is software? (a) a paint program (b) a hard disk (c) a webcam (d) a speaker
  11. 11.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) rename (c) create (d) move
  12. 12.🧩 Is a paint program hardware or software? (a) hardware (b) software
  13. 13.True or false: a memory card is an input device. (a) False (b) True
  14. 14.True or false: Ctrl+Y is the shortcut to copy. (a) False (b) True
  15. 15.True or false: a projector is an input device. (a) True (b) False
  16. 16.🧩 Is a calculator app hardware or software? (a) hardware (b) software
  17. 17.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
  18. 18.📁 What do we call a folder inside another folder? (a) a big file (b) a subfolder (c) a printer (d) an icon
  19. 19.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) loses data when off (d) keeps your saved files
  20. 20.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) paste (c) print (d) save
  21. 21.💾 How many KB are there in 2 MB?
  22. 22.True or false: Ctrl+S is the shortcut to undo. (a) True (b) False
  23. 23.Which of these is an output device? (a) keyboard (b) printer (c) microphone (d) scanner
  24. 24.✋ Which can we touch: hardware or software? (a) software (b) hardware
  25. 25.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) is the working memory (c) loses data when off (d) is permanent storage
  26. 26.True or false: Ctrl+X is the shortcut to redo. (a) True (b) False
  27. 27.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
  28. 28.What does it mean to rename a file? (a) change its name (b) throw it away (c) store your work (d) keep your work for later
  29. 29.⌨️ In a word processor, what does Ctrl+Y do? (a) paste (b) copy (c) save (d) redo
  30. 30.True or false: RAM is the working memory. (a) False (b) True
  31. 31.💾 How many bits are there in 9 bytes?
  32. 32.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Redo (d) Cut
  33. 33.💡 What is the smallest unit of computer memory? (a) GB (b) bit (c) KB (d) byte
  34. 34.Which of these is software? (a) a speaker (b) a hard disk (c) a keyboard (d) an operating system
  35. 35.True or false: a memory card is a storage device. (a) False (b) True
  36. 36.What does it mean to rename a file? (a) give it a new name (b) store your work (c) put it in another place (d) keep your work for later
  37. 37.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
  38. 38.🧰 Is a projector a storage, input or output device? (a) a storage device (b) an output device (c) an input device
  39. 39.True or false: to open a file means to make a brand-new one. (a) False (b) True
  40. 40.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device

Answer key

  1. RAM
  2. .txt
  3. instructions
  4. 1 TB
  5. pen drive
  6. 1024
  7. 1
  8. True
  9. a sound
  10. a paint program
  11. rename
  12. software
  13. False
  14. False
  15. False
  16. software
  17. 1 byte
  18. a subfolder
  19. loses data when off
  20. undo
  21. 2048
  22. False
  23. printer
  24. hardware
  25. is permanent storage
  26. False
  27. a document
  28. change its name
  29. redo
  30. True
  31. 72
  32. Redo
  33. bit
  34. an operating system
  35. True
  36. give it a new name
  37. 1 KB
  38. an output device
  39. False
  40. an output device

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