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Questions and Answers
What is a computer?
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?
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.
Name one application of computers in daily life.
Business
Who developed the ENIAC computer?
Who developed the ENIAC computer?
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The ENIAC was developed in the early _____ by John Mauchly and Prosper Eckert.
The ENIAC was developed in the early _____ by John Mauchly and Prosper Eckert.
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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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