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|Central processing unit (CPU)
|The chip located inside the system unit of a computer that performs the processing for a computer
|GHz – (gigahertz)
|speed of a processor counted by billions of ticks per second
|MHz – (megahertz)
|speed of a processor counted by millions of ticks per second
|The container that holds the motherboard and keeps components safe.
|The main circuit board of a computer to which all computer system components connect.
|BIOS: Basic Input/Output System
|Lowest level software in the computer that acts as an interface between the hardware of the operating system.
|ROM: Read Only Memory
|Contain permanently written data called firmware that loads the operating system when first powered on
|small, high speed memory between the processor and system memory. Faster than RAM
|Hard disk drive
|A storage system consisting of one or more metal magnetic disks permanently sealed with an access mechanism inside its drive
|Storage measurement in millions of bytes
|Storage measurement in billions of bytes
|Storage measurement in trillions of bytes
|Random access memory (RAM)
|provides a high speed, temporary location for the computer to hold data and program instructions
|The smallest unit of computing, consists of either a 0 or 1 (on or off)
|8 bits makes 1 byte
|Video Graphic Adapter
|Enables the connection of a monitor and may provide additional graphics capabilities
|Network Interface Card
|Enables a PC to connect to a network
|Adds read and write capabilities to your computer for portability
|A display device that projects images onto a display screen
|Stands for "Advanced Technology Attachment." It is a type of disk drive that integrates the drive controller directly on the drive itself. Computers can use ATA hard drives without a specific controller to support the drive.
|A bare bones PC is a computer that has minimal components.
|Coaxial (or “coax”) cable is a common type of cable used for transmitting data over long distances.
|The southbridge is a chip that connects the northbridge to other components inside the computer, including hard drives, network connections, USB and Firewire devices, the system clock, and standard PCI cards.