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Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 499 · 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.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Cut (c) Delete (d) Copy
  2. 2.✋ Which can we touch: hardware or software? (a) hardware (b) software
  3. 3.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) byte (d) KB
  4. 4.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) keeps your saved files (c) holds apps that are open (d) is the working memory
  5. 5.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is temporary memory (c) is permanent storage (d) is the working memory
  6. 6.⌨️ In a word processor, what does Ctrl+C do? (a) paste (b) copy (c) print (d) select all
  7. 7.💾 How many bits are there in 12 bytes?
  8. 8.💾 How many MB are there in 2 GB?
  9. 9.📄 A file name ends in .pdf. What is it most likely? (a) a video (b) a picture (c) a sound (d) a document
  10. 10.📁 What do we call a folder inside another folder? (a) a big file (b) a subfolder (c) a printer (d) an icon
  11. 11.Which file ending is a document? (a) .png (b) .jpg (c) .pdf (d) .mp3
  12. 12.Which file ending is a document? (a) .mp3 (b) .txt (c) .mkv (d) .mp4
  13. 13.Which file ending is a picture? (a) .mp4 (b) .mp3 (c) .png (d) .avi
  14. 14.🔍 Which is the odd one out? (a) memory card (b) solid-state drive (c) hard disk (d) speaker
  15. 15.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) undo (c) cut (d) select all
  16. 16.True or false: a printer is hardware. (a) True (b) False
  17. 17.🧩 Is a pen drive hardware or software? (a) software (b) hardware
  18. 18.💾 How many KB are there in 3 MB?
  19. 19.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
  20. 20.True or false: a printer is software. (a) True (b) False
  21. 21.True or false: to delete a file means to throw it away. (a) False (b) True
  22. 22.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a mouse (c) a pixel (d) a folder
  23. 23.🔍 Which is the odd one out? (a) a scanner (b) a computer game (c) a mouse (d) a hard disk
  24. 24.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) paste (c) cut (d) select all
  25. 25.🔍 Which is the odd one out? (a) a hard disk (b) a keyboard (c) a pen drive (d) a calculator app
  26. 26.Which of these is a storage device? (a) speaker (b) memory card (c) projector (d) scanner
  27. 27.📷 A camera keeps its photos on a small ___. (a) keyboard (b) speaker (c) memory card (d) mouse pad
  28. 28.True or false: a monitor is an input device. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) a mouse (b) a keyboard (c) a scanner (d) a paint program
  30. 30.What does it mean to rename a file? (a) make a brand-new one (b) make an exact twin (c) put it in another place (d) change its name
  31. 31.What does it mean to delete a file? (a) give it a new name (b) make an exact twin (c) throw it away (d) change its name
  32. 32.What does it mean to create a file? (a) throw it away (b) make a brand-new one (c) change its name (d) put it in another place
  33. 33.True or false: a hard disk is hardware. (a) True (b) False
  34. 34.Which file ending is a sound? (a) .jpg (b) .txt (c) .mkv (d) .wav
  35. 35.What does it mean to copy a file? (a) see what is inside (b) make an exact twin (c) change its name (d) throw it away
  36. 36.💾 Which is bigger: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
  37. 37.📄 A file name ends in .gif. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
  38. 38.💾 Which one is temporary memory: RAM or storage? (a) RAM (b) storage
  39. 39.🏷️ Every file has a ___ so we can find it. (a) weight (b) taste (c) smell (d) name
  40. 40.📁 Which word means to “put it in another place” (for a file or folder)? (a) copy (b) move (c) open (d) save

Answer key

  1. Redo
  2. hardware
  3. bit
  4. keeps your saved files
  5. is permanent storage
  6. copy
  7. 96
  8. 2048
  9. a document
  10. a subfolder
  11. .pdf
  12. .txt
  13. .png
  14. speaker
  15. select all
  16. True
  17. hardware
  18. 3072
  19. 1
  20. False
  21. True
  22. a folder
  23. a computer game
  24. undo
  25. a calculator app
  26. memory card
  27. memory card
  28. False
  29. a paint program
  30. change its name
  31. throw it away
  32. make a brand-new one
  33. True
  34. .wav
  35. make an exact twin
  36. 1 TB
  37. a picture
  38. RAM
  39. name
  40. move

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