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misy160 ch 2 - Chapter 2 A PERSONAL COMPUTER BASICS...

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Chapter 2 A. PERSONAL COMPUTER BASICS Personal Computer System - a personal computer, software, and peripheral devices that can be connected together for use by a single individual Peripheral device- input, output, and storage equipment that might be added to a computer system to enhance its functionality (ex. Printers, digital cameras, scanners, etc.) System Unit-the case that holds the computer’s main circuit boards, microprocessor, memory, power supply, and storage devices Hard Disk Drive – the main storage device on a personal computer system that’s usually mounted inside the computer’s system unit and can store billions of characters of data Display System- consists of circuitry (Graphic Card) that converts raw digital data into images that can be shown on display devices and display devices such as screens or monitors that present visual output Form factor-the size and dimensions of a component, such as a system Desktop computer-fits on a desk and runs on power from an electoral wall outlet Portable computer-a small, lightweight personal computer with screen, keyboard, storage, and processing components integrated into a single unit that runs on power supplied by an electrical outlet or a battery Notebook computer (laptop)-a small, lightweight portable computer that opens like a clamshell to reveal a screen and keyboard Tablet Computer-a portable computing device featuring a touch-sensitive screen that can be used as a writing or drawing pad Slate Tablet – resembles a high-tech clipboard and lacks a built in keyboard Convertible tablet-constructed like a notebook computer but the screen folds face up over the keyboard to provide a horizontal writing surface
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Ultra-mobile PC (UMPC)-a small form factor tablet computer designed to run most of the software available for larger portable computers Home computer system-offers a hardware platform with adequate, but not super charged support for most computer applications Media Center PC-officially uses windows media center edition operating system-promote music and video applications Compatible-computers that operate in essentially the same way PC Platform-based on the design for one of the first personal computers, IBM PC, uses the Windows operation system Mac Platform-apple computer Inc.-becoming compatible with windows software Linux Platform-a standard PC with the Linux operation system installed Mod-a custom, hand-built medication to a computer system component B. MICROPROCESSORS AND MEMORY Microprocessor clock-a timing device that sets the pace for executing instructions Megahertz(MHz)-a million cycles per second Gigahertz(GHz)-a billion cycles per second Front Side Bus (FSB)-the circuitry that transports data to and from the microprocessor (200MHz to 1250MHz) HyperTransport-technology that increases the speed of data moving to the processor Word Size-the number of bits that a microprocessor can manipulate at one time –based on the size of registers in the ALU and the capacity of circuits the lead to those registers (32-
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