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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 301 · 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 MB? (a) 1 KB (b) 1 MB
  2. 2.📄 A file name ends in .mkv. What is it most likely? (a) a video (b) a document (c) a picture (d) a sound
  3. 3.What does it mean to save a file? (a) see what is inside (b) store your work (c) make a brand-new one (d) change its name
  4. 4.Which of these is software? (a) a hard disk (b) a web browser (c) a webcam (d) a scanner
  5. 5.💾 How many bytes are there in 4 KB?
  6. 6.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Cut (c) Delete (d) Copy
  7. 7.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) KB (d) bit
  8. 8.🔍 Which is the odd one out? (a) a keyboard (b) a speaker (c) a webcam (d) an operating system
  9. 9.💾 How many GB are there in 1 TB?
  10. 10.🧩 Is a webcam hardware or software? (a) hardware (b) software
  11. 11.✋ Which can we touch: hardware or software? (a) software (b) hardware
  12. 12.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+P (c) Ctrl+Z (d) Ctrl+X
  13. 13.🧰 Is a mouse a storage, input or output device? (a) a storage device (b) an input device (c) an output device
  14. 14.🧩 Is a calculator app hardware or software? (a) hardware (b) software
  15. 15.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
  16. 16.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
  17. 17.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
  18. 18.⌨️ In a word processor, what does Ctrl+P do? (a) paste (b) cut (c) print (d) copy
  19. 19.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
  20. 20.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) programmers (d) tailors
  21. 21.True or false: to move a file means to put it in another place. (a) True (b) False
  22. 22.True or false: Ctrl+Y is the shortcut to cut. (a) True (b) False
  23. 23.📄 A file name ends in .jpg. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
  24. 24.Which file ending is a sound? (a) .gif (b) .mp3 (c) .mp4 (d) .txt
  25. 25.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+B (c) Ctrl+I (d) Ctrl+F
  26. 26.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
  27. 27.What does it mean to copy a file? (a) see what is inside (b) give it a new name (c) make an exact twin (d) get rid of it
  28. 28.📁 Which word means to “throw it away” (for a file or folder)? (a) open (b) save (c) rename (d) delete
  29. 29.🧩 Is a music player app hardware or software? (a) hardware (b) software
  30. 30.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) holds apps that are open (c) keeps your saved files (d) loses data when off
  31. 31.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
  32. 32.🔍 Which is the odd one out? (a) a speaker (b) a pen drive (c) a mouse (d) a calculator app
  33. 33.Which of these is software? (a) a speaker (b) a scanner (c) a paint program (d) a keyboard
  34. 34.True or false: a mouse is hardware. (a) True (b) False
  35. 35.🖍️ Before we cut or copy text, we must first ___ it. (a) select (b) print (c) delete (d) save
  36. 36.Which shortcut do we press to save? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+S (d) Ctrl+V
  37. 37.Which of these is an output device? (a) projector (b) scanner (c) memory card (d) pen drive
  38. 38.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
  39. 39.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
  40. 40.🔍 Which is the odd one out? (a) a word processor (b) a music player app (c) a printer (d) a typing tutor

Answer key

  1. 1 MB
  2. a video
  3. store your work
  4. a web browser
  5. 4096
  6. Redo
  7. bit
  8. an operating system
  9. 1024
  10. hardware
  11. hardware
  12. Ctrl+X
  13. an input device
  14. software
  15. RAM
  16. instructions
  17. True
  18. print
  19. 1 KB
  20. programmers
  21. True
  22. False
  23. a picture
  24. .mp3
  25. Ctrl+F
  26. False
  27. make an exact twin
  28. delete
  29. software
  30. keeps your saved files
  31. a sound
  32. a calculator app
  33. a paint program
  34. True
  35. select
  36. Ctrl+S
  37. projector
  38. 1
  39. 1 KB
  40. a printer

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