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33 terms

Westy HS - A+ - Motherboards - 1

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Accelerated Graphics Port (AGP)
32-bit Bus designed exclusively for video cards.
address bus
bus system that connects CPU with main memory module. Identifies memory locations where data is stored and retrieved
backplane
Circuit board with slots along the length of the board. Ensures easy upgrades of any and all components
bus
collection of conductors that connect multiple parts, allowing them to work together for a specific purpose
bus mastering
allows data to be transferred directly between 2 devices without going through the CPU
chipset
handles data manipulation and motherboard traffic that would otherwise have to be done by the CPU
CMOS setup program
program that allows one to identify the hard drive type and other storage systems in the PC, select power/management features, and select boot order of storage devices
control bus
a bus that delivers command signals from the CPU to devices
data bus
a bus used to move information between PC components
direct memory access (DMA)
combination of software and hardware that allows certain devices access to RAM without going through the CPU
Enhanced Parallel Port (EPP)
parallel port standard that allows a throughput as high as 2 Mbps. Also referred to as IEEE-1284 standard
expansion card slots
connectors that allow devices to be quickly and easily plugged in to the bus system
Extended Capabilities Port (ECP)
parallel port standard that provides for bidirectional communication and has enhanced capabilities to support multiple devices
Extended Industry Standard Architecture (EISA)
32-bit expansion bus, designed in response to IBM's MCA bus system. ISA cards can also fit into this slot.
field replaceable unit (FRU)
any major part of a computer system that could be completely replaced on site rather than repaired
Firewire (IEEE1394)
bus system that provides a high rate of data transfer (up to 400Mbps) and can serve up to 63 devices in a daisy-chain fashion
flash BIOS
BIOS that is stored on a reprogrammable chip, allowing for easy upgrades
form factor
the physical shape or outline of a motherboard and the location of the mounting holes
I/O bus
slower bus used to communicate with keyboards, mice, floppy drives, printers, etc
I/O port address
the memory address assigned to a device so that it may be identified by other devices
Industry Standard Architecture (ISA)
an I/O expansion bus system featuring a 16-bit data bus
internal bus
the bus that is found inside of the CPU
IRQ
A signal that interrupts the process taking place inside the CPU and asks that the CPU pay attention to a particular device
local bus
a bus system that connects directly to the CPU and provides communication to high-speed devices mounted closely to the CPU
memory address range
an assigned section of memory used as a temporary storage area for data before it is transferred
memory bus
bus that connects the CPU to RAM
MicroChannel Architecture (MCA)
I/O expansion bus system featuring a 32-bit data bus. Not compatible with ISA bus
north bridge
the portion of the chipset that controls high speed data systems such as graphics and DVD hardware
Peripheral Component Interconnect (PCI)
32-bit data bus system that provides the high-speed bus structure used for faster CPUs
Plug and Play (PnP)
BIOS function that allows the automatic detection and configuration of new hardware components. Automatically assigns system resources such as DMA channels, IRQs, memory, port assignments
power bus
bus system that sends electrical power for small consumption devices such as speakers, lights, and switches
south bridge
the portion of the chipset that controls the slower devices associated with the PCI and ISA buses
Universal Serial Bus (USB)
bus system designed to replace expansion slots, with a data transfer rate of up to 480Mbps. Can support up to 127 devices in a daisy-chain configuration