Industry Standard Architecture
(ISA) A {bus} {standard} for {IBM
compatibles} that extends the {XT bus architecture} to 16
bits. It also allows for {bus mastering} although only the
first 16 {MB} of {main memory} is available for direct access.
In reference to the XT bus architecture it is sometimes
referred to as "AT bus architecture".
Compare {EISA}, {MCA}.
(1996-06-25)