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Material Type: Notes; Professor: Tollison; Class: Systems Oper Mgmt CANCELLED; Subject: Business; University: Mississippi University for Women; Term: Fall 2007;
Typology: Study notes
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The Motherboard September 18 (Day); September 12 (Night)
o A motherboard’s primary purpose is to house the processor and allow all devices to communicate with it and with one another.
o CPU Socket / Slot (discussed in a previous lecture) (p. 86) o CPU Fan Power Connector (p. 86)
2-4 slots very near the motherboard for installing RAM o Power Connector (p. 87): Used to power objects on the motherboard such as the processor and the memory. o Chip Set (the Northbridge and Southbridge discussed in an earlier lecture) (p. 88) o EIDE and FDD Ports (p. 88): Used to allow floppy drives, hard drives, CD-ROM drives, and DVD drives a connection to the motherboard.
Expansion slots allow you to customize your computer by plugging components into the expansion slots. Expansion slots allow the user to increase the capabilities of a computer without having to buy an entirely new system every time an innovation appears.
Flash ROM is the read only memory that stores the motherboard BIOS (a.k.a. system BIOS).
o Front Panel Connectors (p. 90): Every motherboard has several connectors for various items on the front of the motherboard, such as the power and reset buttons, lights, speaker, etc. o Jumpers (p. 91): A jumper are pairs of wires that you enable (turn on) or disable (turn off) by placing a small plastic and metal cover both wires. If the cover is present, the setting is ON. If the cover is absent, the setting is OFF. Jumper Switch
A DIP switch is a small plastic box with tiny switches. The switches may either be flipped ON or OFF. DIP Switch
ATX motherboards have a series of external port connections attached to one edge that poke through the back of the PC.
A Baby-AT motherboard sitting atop an AT motherboard. o ATX (p. 95): The Industry standard Designed by Intel for use in their Pentium systems in 1996. Have substantially more external connectors for peripheral devices, including PS/ The RAM is closer to the Northbridge and the Southbridge CPU on top of board near power supply Measure 12 in. X 9 in. ATX motherboard (left); AT motherboard (right)