Introduction to Computers

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Questions and Answers

What is a computer?

A computer is a programmable machine that manipulates information, or data, and can store, retrieve, and process data.

Which of the following is NOT a principal characteristic of a computer?

  • Can only perform simple calculations (correct)
  • Can execute a pre-recorded list of instructions
  • Can quickly store and retrieve large amounts of data
  • Responds to a specific set of instructions

Name one application of computers in daily life.

Business

Who developed the ENIAC computer?

<p>John Mauchly and Prosper Eckert (C)</p> Signup and view all the answers

The ENIAC was developed in the early _____ by John Mauchly and Prosper Eckert.

<p>1950s</p> Signup and view all the answers

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Study Notes

Computer Definition

  • A programmable machine that manipulates information (data)
  • Can store, retrieve, and process data
  • A machine that follows instructions (programs) to manipulate data
  • Any device used for computations or calculations

Computer Characteristics

  • Responds to a specific set of instructions in a defined way
  • Executes pre-recorded lists of instructions
  • Stores and retrieves large amounts of data quickly

Computer Applications in Daily Life

  • Business: Management, accounting, marketing
  • Publishing: Writing, editing, printing
  • Education: Online learning, research, teaching
  • Healthcare: Diagnosis, treatment, record keeping
  • Arts & Entertainment: Film production, music production, gaming
  • Working from Home: Remote work, online meetings, communication
  • Military: Communication, intelligence, logistics
  • Social & Romance: Online dating, social networking, communication
  • Retail & Trade: Online shopping, inventory management, point-of-sale systems
  • Government: Administrative tasks, law enforcement, communication
  • Banking & Finance: Online banking, transactions, financial analysis
  • Transportation: Navigation, logistics, traffic management
  • Security & Surveillance: Monitoring, access control, investigation
  • Weather Forecasting: Data analysis, prediction
  • Robotics: Automation, manufacturing, exploration
  • Navigation: GPS, mapping, location services
  • Science: Research, data analysis, simulations

Early Computer History

  • Abacus: A manual calculating tool that was used for centuries
  • ENIAC Computer: Developed by John Mauchly and J. Presper Eckert at the Moore School of Engineering, Pennsylvania
  • ENIAC was as large as a house and contained thousands of vacuum tubes
  • Mauchly was the “software” guy and Eckert was the “hardware” guy

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