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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 812 · 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 bigger: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
  2. 2.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) the memory card (c) the hard disk (d) RAM
  3. 3.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
  4. 4.⌨️ In a word processor, what does Ctrl+V do? (a) redo (b) cut (c) undo (d) paste
  5. 5.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+I (c) Ctrl+U (d) Ctrl+B
  6. 6.True or false: storage (like a hard disk) keeps data when off. (a) False (b) True
  7. 7.True or false: Ctrl+X is the shortcut to undo. (a) True (b) False
  8. 8.What does it mean to delete a file? (a) store your work (b) get rid of it (c) make a brand-new one (d) give it a new name
  9. 9.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+A (d) Ctrl+V
  10. 10.⚡ Which is faster for the computer to work with? (a) a pen drive (b) a printer (c) a memory card (d) RAM
  11. 11.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is temporary memory (c) is the working memory (d) is permanent storage
  12. 12.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) loses data when off (c) keeps your saved files (d) is temporary memory
  13. 13.💾 Which is bigger: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
  14. 14.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 9 (d) 1
  15. 15.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) select all (c) print (d) save
  16. 16.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
  17. 17.💾 Which is smaller: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
  18. 18.📄 A file name ends in .mp4. What is it most likely? (a) a video (b) a picture (c) a document (d) a sound
  19. 19.Which file ending is a video? (a) .png (b) .txt (c) .mp4 (d) .mp3
  20. 20.Which of these is a storage device? (a) projector (b) microphone (c) hard disk (d) keyboard
  21. 21.💾 How many MB are there in 1 GB?
  22. 22.What does it mean to create a file? (a) change its name (b) keep your work for later (c) make an exact twin (d) make a brand-new one
  23. 23.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
  24. 24.True or false: a paint program is hardware. (a) True (b) False
  25. 25.📄 What does a word processor help us do? (a) water plants (b) fly a kite (c) cook food (d) type and edit text
  26. 26.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) GB (d) bit
  27. 27.📄 A file name ends in .wav. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
  28. 28.True or false: a monitor is a storage device. (a) False (b) True
  29. 29.Which of these is software? (a) a mouse (b) a monitor (c) a computer game (d) a hard disk
  30. 30.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
  31. 31.🧩 Is a keyboard hardware or software? (a) software (b) hardware
  32. 32.Which of these is software? (a) a scanner (b) a pen drive (c) a keyboard (d) an operating system
  33. 33.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) print (c) save (d) undo
  34. 34.🧩 Is a scanner hardware or software? (a) software (b) hardware
  35. 35.📄 A file name ends in .txt. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
  36. 36.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Delete (c) Copy (d) Cut
  37. 37.What does it mean to delete a file? (a) store your work (b) throw it away (c) make an exact twin (d) make a brand-new one
  38. 38.True or false: to rename a file means to change its name. (a) True (b) False
  39. 39.💾 Which is smaller: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
  40. 40.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM

Answer key

  1. 1 KB
  2. RAM
  3. RAM
  4. paste
  5. Ctrl+F
  6. True
  7. False
  8. get rid of it
  9. Ctrl+V
  10. RAM
  11. is permanent storage
  12. keeps your saved files
  13. 1 MB
  14. 1
  15. save
  16. RAM
  17. 1 byte
  18. a video
  19. .mp4
  20. hard disk
  21. 1024
  22. make a brand-new one
  23. a picture
  24. False
  25. type and edit text
  26. bit
  27. a sound
  28. False
  29. a computer game
  30. 1 KB
  31. hardware
  32. an operating system
  33. cut
  34. hardware
  35. a document
  36. Redo
  37. throw it away
  38. True
  39. 1 bit
  40. storage

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