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18 Cards in this Set
- Front
- Back
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VDC that a comp needs to operate?
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+3.3 VDC (only ATX), +5 VDC, +5 VDC standby (only ATX), +12 VDC, -5 VDC, -12 VDC
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Molex connector use
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For powering: (generally) different types of internal disk drives
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Molex connector appearance
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larger than burg with 4 round metal sockets corisponding to 4 wires
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Burg connector use
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For powering: Floppy/other small from factor devices
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Burg connector appearance
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Smaller & flatter than other types of power conectors with 4 flat sockets corisponding to 4 wires
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DC voltages that a computer needs to opeerate
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+3.3 VDC (ATX only), +5 VDC, -5 VDC, +12 VDC, -12 VDC, +5 VDC Standby (ATX only)
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Berg connector/Floppy Drive Power Connector use
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Used to power floppy drives and other small form factor devices
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Berg connector/Floppy Drive Power Connector appearance
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Smaller and flatter than other power connectors with flat/rectangle sockets and corresponding wires
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Berg connector/Floppy Drive Power Connector wire layout
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+5VDC-RED
+12VDC-YELLOW 2*ground-BLACK |
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AT System Connector installation
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connectors side by side black to black
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Molex Connector/Standard Peripheral Power Connector use
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to power (generally) different types of internal disk drives
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Molex Connector/Standard Peripheral Power Connector appearance
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larger than floppy/berg with 4 round sockets and corresponding wires
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Molex Connector/Standard Peripheral Power Connector wire layout
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+5VDC-RED
+12VDC-YELLOW 2*ground-BLACK (same as berg) |
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ISA Expansion Slot time line
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computers made before 1997 tend to have ISA Slots and compters made after 1997 generally have them too but are phasing them out
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ISA Expansion Slot appearance
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Black with two parts: One shorter one longer
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ISA Specs
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Industry Standard Architecture
16-bit also called the AT bus ? |
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Interupts (IRQ)
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-lines connected derectly to the cpu
-used to get derect atention -asigned to each bus -only PCI can share IRQs |
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ISA Bus IRQ defaults
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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 |
