No worries, no criticism intended, I only get upset with upstarts who've hijacked a perfectly suited hardware hacking term for sleight of soft hands.
ISA would be the entire (IBM PC AT) architecture: I/O Cards, Box, MoBo, MoBo specific backplane openings (where implemented at all) PSU and those specific Power Connectors pictured that finally settled down into the ATX/PCI form factor after much ado.
Such passed for standardization in that 8/16bit AT day and on thru the VESA Local Bus, pre-PCI era of 32bitdom that developed by the Clonemakers (Gang of Nine) after some upstart in Cupertino went all 24/32bit over the entrenched PC industry. The gang went one way after a lot of false starts, while IBM MicroChannelled itself into . . .
. . . well . . . lets face it . . . Lenovo.
.
ISA would be the entire (IBM PC AT) architecture: I/O Cards, Box, MoBo, MoBo specific backplane openings (where implemented at all) PSU and those specific Power Connectors pictured that finally settled down into the ATX/PCI form factor after much ado.
Such passed for standardization in that 8/16bit AT day and on thru the VESA Local Bus, pre-PCI era of 32bitdom that developed by the Clonemakers (Gang of Nine) after some upstart in Cupertino went all 24/32bit over the entrenched PC industry. The gang went one way after a lot of false starts, while IBM MicroChannelled itself into . . .
. . . well . . . lets face it . . . Lenovo.
.