Industry standard architecture Motherboard Processor & RAM

Industry standard architecture Motherboardit allowes to communicate directly with other
Processor & RAM I would like to know whatdevices without going through the processor. The
is Isa , industry standard architecture , and whatIndustry Standard Architecture, commonly
is the latest Version of Isa , when isa was Usedabbreviated as ISA 'is a standard computer bus
and how does Isa works , please help me thanksused internally for connecting expansion cards to
in advance for your helpThe Industry Standardthe motherboard of a computer. It has been over
Architecture, commonly abbreviated as ISA is aa decade bus standard compatible PC. Since 1998
standard computer bus used internally forit has almost disappeared from the new
connecting expansion cards to the motherboardmotherboards for the benefit of the Peripheral
of a computer. It is a 16 bits width bus with aComponent Interconnect (PCI) The original ISA
clock speed of 8 MHz. It allows bus mastering onbus (Industry Standard Architecture), appeared in
the first 16 megabytes. The ISA bus was1981 with the PC XT, was a bus width of 8 bits
developed by IBM as part of the creation of theclocked at a frequency of 4.77 MHz.
PC in 1981. Originally a width of 8 bits, it goes toIn 1984, with the advent of the PC AT (Intel
16 bits in 1984, first under the name AT bus.286), the bus width is increased to 16 bits and the
The Extended Industry Standard Architecture, orfrequency successively from 6 to 8 MHz, and
EISA bus is a standard for improving ISA busfinally 8.33 MHz , providing a theoretical maximum
offered by Compaq at the head of a consortiumthroughput of 16 Mb/s (in practice only 8 MB / s
of manufacturers, in response to the IBM Isa busin that cycle two was used for addressing).
The ISA bus allow bus mastering , it means that