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18 Cards in this Set

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VDC that a comp needs to operate?
+3.3 VDC (only ATX), +5 VDC, +5 VDC standby (only ATX), +12 VDC, -5 VDC, -12 VDC
Molex connector use
For powering: (generally) different types of internal disk drives
Molex connector appearance
larger than burg with 4 round metal sockets corisponding to 4 wires
Burg connector use
For powering: Floppy/other small from factor devices
Burg connector appearance
Smaller & flatter than other types of power conectors with 4 flat sockets corisponding to 4 wires
DC voltages that a computer needs to opeerate
+3.3 VDC (ATX only), +5 VDC, -5 VDC, +12 VDC, -12 VDC, +5 VDC Standby (ATX only)
Berg connector/Floppy Drive Power Connector use
Used to power floppy drives and other small form factor devices
Berg connector/Floppy Drive Power Connector appearance
Smaller and flatter than other power connectors with flat/rectangle sockets and corresponding wires
Berg connector/Floppy Drive Power Connector wire layout
+5VDC-RED
+12VDC-YELLOW
2*ground-BLACK
AT System Connector installation
connectors side by side black to black
Molex Connector/Standard Peripheral Power Connector use
to power (generally) different types of internal disk drives
Molex Connector/Standard Peripheral Power Connector appearance
larger than floppy/berg with 4 round sockets and corresponding wires
Molex Connector/Standard Peripheral Power Connector wire layout
+5VDC-RED
+12VDC-YELLOW
2*ground-BLACK
(same as berg)
ISA Expansion Slot time line
computers made before 1997 tend to have ISA Slots and compters made after 1997 generally have them too but are phasing them out
ISA Expansion Slot appearance
Black with two parts: One shorter one longer
ISA Specs
Industry Standard Architecture
16-bit
also called the AT bus
?
Interupts (IRQ)
-lines connected derectly to the cpu
-used to get derect atention
-asigned to each bus
-only PCI can share IRQs
ISA Bus IRQ defaults
0-System Timer
1-Keyboard
2-for 8-bit bus compatibility with irqs over 9 it links to 9
3-com 2 and 4
4-com 3 and 1
5-LPT2(usually available)
6-Floppy controler
7-LPT1
8-Real Time Clock(RTC)
9-refer to 2
10-available(some times used for a sound card or NIC)
11-Available
12-PS/2 mouse port(availible if not used)
13-math coprocessor
14-Primary hard disk controller board
15-secondary hard disk controller