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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 95 · 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.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
  2. 2.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
  3. 3.Which shortcut do we press to cut? (a) Ctrl+X (b) Ctrl+C (c) Ctrl+Y (d) Ctrl+S
  4. 4.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Cut (c) Print (d) Undo
  5. 5.🧩 Is a mouse hardware or software? (a) software (b) hardware
  6. 6.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
  7. 7.True or false: Ctrl+Z is the shortcut to paste. (a) False (b) True
  8. 8.⌨️ In a word processor, what does Ctrl+C do? (a) save (b) copy (c) print (d) cut
  9. 9.Which of these is hardware? (a) a typing tutor (b) a music player app (c) an operating system (d) a keyboard
  10. 10.Which of these is true of storage (like a hard disk)? (a) keeps photos for years (b) is temporary memory (c) is the working memory (d) holds apps that are open
  11. 11.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Delete (c) Undo (d) Copy
  12. 12.💾 Which is bigger: 1 MB or 1 TB? (a) 1 TB (b) 1 MB
  13. 13.🔍 Which is the odd one out? (a) solid-state drive (b) projector (c) memory card (d) hard disk
  14. 14.🔍 Which is the odd one out? (a) a keyboard (b) a speaker (c) a computer game (d) a scanner
  15. 15.Which of these is hardware? (a) a typing tutor (b) a calculator app (c) a printer (d) a paint program
  16. 16.Which file ending is a video? (a) .png (b) .wav (c) .txt (d) .mp4
  17. 17.⌨️ In a word processor, what does Ctrl+P do? (a) cut (b) print (c) paste (d) redo
  18. 18.Which shortcut do we press to redo? (a) Ctrl+Z (b) Ctrl+Y (c) Ctrl+V (d) Ctrl+P
  19. 19.True or false: a microphone is an input device. (a) False (b) True
  20. 20.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
  21. 21.🔍 Which is the odd one out? (a) a music player app (b) a word processor (c) a hard disk (d) an operating system
  22. 22.⌨️ In a word processor, what does Ctrl+A do? (a) paste (b) copy (c) undo (d) select all
  23. 23.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
  24. 24.📄 A file name ends in .mkv. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
  25. 25.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Copy (c) Delete (d) Cut
  26. 26.🏷️ Every file has a ___ so we can find it. (a) weight (b) name (c) taste (d) smell
  27. 27.📄 A file name ends in .png. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
  28. 28.📁 Which word means to “keep your work for later” (for a file or folder)? (a) create (b) copy (c) save (d) delete
  29. 29.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a speaker (d) a mouse
  30. 30.💾 How many GB are there in 2 TB?
  31. 31.True or false: to create a file means to see what is inside. (a) True (b) False
  32. 32.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
  33. 33.🔍 Which is the odd one out? (a) a scanner (b) a hard disk (c) a web browser (d) a keyboard
  34. 34.💾 How many MB are there in 1 GB?
  35. 35.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the hard disk (c) the memory card (d) the pen drive
  36. 36.Which shortcut do we press to select all? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+S (d) Ctrl+V
  37. 37.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) programmers (d) tailors
  38. 38.Which file ending is a picture? (a) .mp3 (b) .wav (c) .mkv (d) .jpg
  39. 39.🔍 Which is the odd one out? (a) a computer game (b) a paint program (c) a monitor (d) an operating system
  40. 40.💾 How many bytes are there in 1 KB?

Answer key

  1. 1
  2. RAM
  3. Ctrl+X
  4. Cut
  5. hardware
  6. a sound
  7. False
  8. copy
  9. a keyboard
  10. keeps photos for years
  11. Copy
  12. 1 TB
  13. projector
  14. a computer game
  15. a printer
  16. .mp4
  17. print
  18. Ctrl+Y
  19. True
  20. 1 byte
  21. a hard disk
  22. select all
  23. True
  24. a video
  25. Redo
  26. name
  27. a picture
  28. save
  29. a folder
  30. 2048
  31. False
  32. 1 bit
  33. a web browser
  34. 1024
  35. RAM
  36. Ctrl+A
  37. programmers
  38. .jpg
  39. a monitor
  40. 1024

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