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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 942 · 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.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
  2. 2.🧾 Software is a set of ___ for the computer. (a) instructions (b) screws (c) wires (d) buttons
  3. 3.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) copy (c) redo (d) paste
  4. 4.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
  5. 5.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) keyboard (c) speaker (d) memory card
  6. 6.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
  7. 7.Which shortcut do we press to paste? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+V
  8. 8.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
  9. 9.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
  10. 10.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) tailors (d) programmers
  11. 11.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+P (d) Ctrl+S
  12. 12.True or false: a scanner is hardware. (a) False (b) True
  13. 13.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) undo (c) select all (d) cut
  14. 14.📁 Which word means to “store your work” (for a file or folder)? (a) delete (b) move (c) save (d) create
  15. 15.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+X (d) Ctrl+P
  16. 16.True or false: a typing tutor is software. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) a hard disk (b) a paint program (c) a music player app (d) a word processor
  18. 18.🔍 Which is the odd one out? (a) a computer game (b) a pen drive (c) a webcam (d) a hard disk
  19. 19.🔍 Which is the odd one out? (a) a printer (b) a pen drive (c) a web browser (d) a scanner
  20. 20.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) rename (c) create (d) open
  21. 21.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) byte (d) GB
  22. 22.Which file ending is a document? (a) .wav (b) .jpg (c) .avi (d) .pdf
  23. 23.What does it mean to copy a file? (a) put it in another place (b) make an exact twin (c) give it a new name (d) change its name
  24. 24.True or false: to delete a file means to keep your work for later. (a) True (b) False
  25. 25.💾 How many bytes are there in 1 KB?
  26. 26.💾 How many bytes are there in 4 KB?
  27. 27.📄 A file name ends in .txt. What is it most likely? (a) a video (b) a picture (c) a document (d) a sound
  28. 28.💾 How many KB are there in 3 MB?
  29. 29.💾 How many bytes are there in 2 KB?
  30. 30.💾 Which is bigger: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
  31. 31.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
  32. 32.Which of these is hardware? (a) a computer game (b) a calculator app (c) a pen drive (d) a music player app
  33. 33.Which of these is hardware? (a) a hard disk (b) a web browser (c) a paint program (d) a music player app
  34. 34.📄 A file name ends in .mp4. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
  35. 35.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is the working memory (c) holds apps that are open (d) keeps photos for years
  36. 36.⌨️ In a word processor, what does Ctrl+Y do? (a) print (b) undo (c) paste (d) redo
  37. 37.Which of these is true of RAM? (a) keeps data when off (b) keeps photos for years (c) is the working memory (d) keeps your saved files
  38. 38.🔍 Which is the odd one out? (a) a mouse (b) a printer (c) a word processor (d) a pen drive
  39. 39.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) undo (c) redo (d) paste
  40. 40.🔍 Which is the odd one out? (a) a paint program (b) a pen drive (c) a web browser (d) a computer game

Answer key

  1. True
  2. instructions
  3. select all
  4. Copy
  5. memory card
  6. True
  7. Ctrl+V
  8. False
  9. 1
  10. programmers
  11. Ctrl+Y
  12. True
  13. cut
  14. save
  15. Ctrl+C
  16. True
  17. a hard disk
  18. a computer game
  19. a web browser
  20. rename
  21. bit
  22. .pdf
  23. make an exact twin
  24. False
  25. 1024
  26. 4096
  27. a document
  28. 3072
  29. 2048
  30. 1 TB
  31. RAM
  32. a pen drive
  33. a hard disk
  34. a video
  35. keeps photos for years
  36. redo
  37. is the working memory
  38. a word processor
  39. undo
  40. a pen drive

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