📊 Computer
Q. What are the four key functions of a computer system?
  • (A) input, processing, output, and storage
  • (B) keyboard, display, memory, and disk drive
  • (C) word processing, spreadsheets, database, calculations
  • (D) bits, bytes, words, and OSI
✅ Correct Answer: (A) input, processing, output, and storage

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