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Computer Systems

Learn about the main elements of a computer system, input devices, processing activities, storage media, and output types. Discover computer networks, including the Internet and intranet, and their functions. Explore common input devices, memory capacity, and the differences between internal and external memory.

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Computer Systems

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  1. Computer Systems Goal 1 Identify the main elements of a computer system. Goal 2 Describe input devices and processing activities. Goal 3 Explain computer storage media and output types.

  2. KEY TERMS • computer system • hardware • software • computer network • central processing unit (CPU) • program • computer language • operating system software • application software

  3. ELEMENTS OF A COMPUTER SYSTEM • Input • Processing • Memory and storage • Output device

  4. COMPUTER NETWORKS • Global computer network (Internet) • For accessing the World Wide Web • For exchanging e-mail • Local computer network (intranet) • Functions like a typical website • Used to share information within an organization

  5. Checkpoint  • List the four main elements of a computer system. • Input device(s) • Processing unit • Memory and storage • Output device(s)

  6. INPUT AND PROCESSING • Input: getting started • Processing: making things happen • Word processing • Desktop publishing • Database software • Spreadsheet software • Presentation software

  7. Checkpoint  • What are common input devices? • Common input devices include keyboard, mouse, game controller, joystick, touch-sensitive screen, scanner, voice-activated system, microphone, and camera.

  8. MEMORY AND OUTPUT • Memory and storage • Saving for later • Output • Obtaining results

  9. MEMORY CAPACITY

  10. Checkpoint  • How do internal and external memory differ? • Internal memory is inside the computer and holds a fixed amount of data. External memory is not stored within the computer and it is highly portable.

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