computer

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School

Queens University *

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Course

370

Subject

Information Systems

Date

Oct 30, 2023

Type

docx

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Uploaded by SargentScience1670

Computers are ubiquitous in today's world, playing a central role in various aspects of our lives. They are complex machines that have evolved significantly since their inception. Here is an overview of computers: 1. Definition: A computer is an electronic device capable of processing and storing data. It can perform various tasks through programmed instructions, making it a versatile tool for a wide range of applications. 2. History: The history of computers dates back to the early 20th century when mechanical and analog devices were used for calculations. The development of electronic computers, starting with the ENIAC in the 1940s, marked a turning point. Since then, computers have become progressively smaller, faster, and more powerful. 3. Types of Computers:  Personal Computers (PCs): These are the most common computers used for personal tasks, work, and entertainment. PCs come in various forms, including desktops and laptops.  Servers: These computers are designed for managing and storing data, providing services over networks, and hosting websites and applications.  Supercomputers: These are extremely powerful machines designed for complex scientific and engineering calculations, weather forecasting, and simulations.  Embedded Systems: Computers are integrated into various devices and systems, such as smartphones, cars, and household appliances.  Mainframes: These are large, powerful computers used by organizations for critical business operations, such as banking and airline reservations. 4. Components:  Central Processing Unit (CPU): The "brain" of the computer, responsible for executing instructions and performing calculations.  Memory (RAM): Provides temporary storage for data and programs currently in use.  Storage Devices: These include hard drives and solid-state drives for long-term data storage.  Input and Output Devices: Keyboards, mice, monitors, and printers enable interaction with the computer.  Motherboard: The main circuit board that connects all components.

5. Operating Systems: Computers run on operating systems like Windows, macOS, and Linux, which manage hardware resources and enable users to run applications. 6. Software: Computers rely on software, which includes applications for various tasks, such as word processing, web browsing, and graphic design. Operating systems, device drivers, and utilities are also part of the software ecosystem. 7. Internet and Connectivity: Computers are essential for accessing and navigating the internet, enabling communication, online collaboration, and information retrieval. 8. Impact on Society: Computers have transformed almost every aspect of modern life. They have revolutionized communication, research, healthcare, entertainment, and business operations. They have also raised important ethical and privacy considerations. 9. Future Trends: Computers are expected to continue advancing, with trends like artificial intelligence, quantum computing, and edge computing shaping the future of technology. In summary, computers are remarkable devices that have revolutionized the way we live and work. Their constant evolution ensures they will remain at the forefront of technological progress for years to come.

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