What is Industry Standard Architecture (ISA)?

What does ISA stand for?

Industry Standard Architecture (ISA) is a Laptop Bus specification used for 8-Bit IBM-like minded sySTEMs. An ISA bus presents a fundamental direction for Peripheral gadgets which might be connected to a Motherboard to communicate with special Circuits or different gadgets which are also attached to the equal motherboard.

Peripheral Component Interface (PCI) commenced cHanging the ISA bus within the mid-’90s. New motherboards have been synthetic with fewer ISA slots, and desire become given to PCI Slots.

What Does Industry Standard Architecture Mean?

INitially, an ISA bus was the first-rate option for Intel machines. However, Finally a faster and wider bus become required, and an trouble of incompatibility arose. The manufacturers relied on the equal ISA bus but delivered 16-Bit traits.

The new ISA bus became bendy in that it is able to connect a couple of gadgets. It supported 16-bit Peripheral Devices. Therefore, five Devices with sixteen-bit Interrupt Request (IRQ) could be connected at the same time. Also, three additional gadgets might be connected parallel to 5 gadgets with sixteen-bit IRQ and a sixteen-bit direct reminiscence get admission to (DMA) channel. The CPU Clock Speed various from 16 to 20 MHz.