ISA
E35357
ISA (Industry Standard Architecture) is an early computer bus standard used in IBM PCs and compatible systems to connect expansion cards and peripherals to the motherboard.
Aliases (1)
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
computer bus standard
→
expansion bus → |
| abbreviationOf |
Industry Standard Architecture
→
|
| addressBusWidth |
24-bit
→
|
| architecture |
parallel bus
→
|
| backwardCompatibleWith |
8-bit IBM PC bus
→
|
| busWidth |
16-bit
→
8-bit → |
| category |
legacy expansion bus
→
|
| clockSpeed |
4.77 MHz
→
8 MHz → |
| compatibilityGoal |
industry-wide standard for PC expansion
→
|
| connects |
expansion cards
→
motherboard → peripherals → |
| dataBusWidth |
16-bit
→
8-bit → |
| derivedFrom |
Intel 8088 bus
→
|
| designedFor |
x86 architecture
→
|
| dominantPeriod |
1980s
→
early 1990s → |
| formFactor |
long expansion slot
→
|
| fullName |
Industry Standard Architecture
→
|
| introducedBy |
IBM
→
|
| introducedIn |
1981
→
|
| powerProvidedThrough |
bus connector
→
|
| replacedBy |
EISA
→
PCI → VESA Local Bus → |
| slotType |
edge connector
→
|
| standardizedAs |
de facto PC industry standard
→
|
| supports |
DMA channels
→
add-on cards → interrupt lines → memory-mapped I/O → modems → network interface cards → port-mapped I/O → sound cards → storage controllers → |
| usedFor |
connecting internal peripherals
→
system expansion in early PCs → |
| usedIn |
IBM PC
→
IBM PC AT → IBM PC XT → IBM PC compatible → |
Referenced by (5)
| Subject (surface form when different) | Predicate |
|---|---|
|
IBM PC
→
|
busArchitecture |
|
IBM PC AT
→
|
busType |
|
IBM PC XT
→
|
expansionBus |
|
Commodore Amiga 4000
("ISA (via bridgeboard)")
→
|
expansionSlots |
|
IBM PC compatible
→
|
usesBusArchitecture |