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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 45 · 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.💾 How many bits are there in 3 bytes?
  2. 2.True or false: a mouse is hardware. (a) True (b) False
  3. 3.Which shortcut do we press to redo? (a) Ctrl+X (b) Ctrl+P (c) Ctrl+C (d) Ctrl+Y
  4. 4.True or false: RAM is the working memory. (a) True (b) False
  5. 5.📁 Which word means to “store your work” (for a file or folder)? (a) copy (b) open (c) rename (d) save
  6. 6.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a mouse (c) a pixel (d) a folder
  7. 7.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
  8. 8.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) paper storage (c) rain storage (d) cloud storage
  9. 9.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the pen drive (c) the hard disk (d) the memory card
  10. 10.🧩 Is an operating system hardware or software? (a) hardware (b) software
  11. 11.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
  12. 12.📁 Which word means to “give it a new name” (for a file or folder)? (a) save (b) open (c) delete (d) rename
  13. 13.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Delete (c) Copy (d) Cut
  14. 14.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
  15. 15.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
  16. 16.What does it mean to save a file? (a) keep your work for later (b) make an exact twin (c) throw it away (d) see what is inside
  17. 17.True or false: to open a file means to see what is inside. (a) False (b) True
  18. 18.🧰 Is a speaker a storage, input or output device? (a) an output device (b) an input device (c) a storage device
  19. 19.True or false: a computer game is software. (a) True (b) False
  20. 20.👩‍💻 What do we call people who write software? (a) programmers (b) plumbers (c) farmers (d) tailors
  21. 21.True or false: RAM loses data when off. (a) False (b) True
  22. 22.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Undo (c) Save (d) Copy
  23. 23.💾 How many bits are there in 10 bytes?
  24. 24.📄 What does a word processor help us do? (a) fly a kite (b) water plants (c) cook food (d) type and edit text
  25. 25.True or false: RAM keeps data when off. (a) True (b) False
  26. 26.Which of these is true of RAM? (a) keeps photos for years (b) keeps data when off (c) loses data when off (d) keeps your saved files
  27. 27.Which shortcut do we press to undo? (a) Ctrl+P (b) Ctrl+Z (c) Ctrl+A (d) Ctrl+Y
  28. 28.True or false: to open a file means to throw it away. (a) True (b) False
  29. 29.Which shortcut do we press to save? (a) Ctrl+V (b) Ctrl+S (c) Ctrl+P (d) Ctrl+A
  30. 30.▌ What is the blinking line that shows where you will type? (a) the cursor (b) the folder (c) the icon (d) the toolbar
  31. 31.What does it mean to rename a file? (a) get rid of it (b) put it in another place (c) store your work (d) change its name
  32. 32.💾 Which is smaller: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
  33. 33.What does it mean to rename a file? (a) give it a new name (b) throw it away (c) get rid of it (d) make an exact twin
  34. 34.Which of these is hardware? (a) a webcam (b) a word processor (c) a typing tutor (d) a paint program
  35. 35.💾 How many bits are there in 9 bytes?
  36. 36.Which file ending is a picture? (a) .pdf (b) .wav (c) .mp3 (d) .png
  37. 37.🔍 Which is the odd one out? (a) a calculator app (b) a monitor (c) a keyboard (d) a scanner
  38. 38.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) holds apps that are open (c) is permanent storage (d) is temporary memory
  39. 39.🧰 Is a solid-state drive a storage, input or output device? (a) an input device (b) an output device (c) a storage device
  40. 40.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9

Answer key

  1. 24
  2. True
  3. Ctrl+Y
  4. True
  5. save
  6. a folder
  7. 1 KB
  8. cloud storage
  9. RAM
  10. software
  11. False
  12. rename
  13. Redo
  14. instructions
  15. 1 bit
  16. keep your work for later
  17. True
  18. an output device
  19. True
  20. programmers
  21. True
  22. Undo
  23. 80
  24. type and edit text
  25. False
  26. loses data when off
  27. Ctrl+Z
  28. False
  29. Ctrl+S
  30. the cursor
  31. change its name
  32. 1 GB
  33. give it a new name
  34. a webcam
  35. 72
  36. .png
  37. a calculator app
  38. is permanent storage
  39. a storage device
  40. 1

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