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IBM MicroChannel Bus

 

 

The IBM MicroChannel Bus was designed as a replacement for the ISA bus in 1987. It is much faster, and is capable of Plug & Play (adding a card to a MicroChannel computer does not change the interrupt and DMA settings on the card). These functions are done via software. IBM Microchannel slots are available almost exclusively in IBM's PS/2® line. Viewed as proprietary technology, the IBM MicroChannel Bus did not have much success outside of IBM products. Most of the major players in the industry instead banded together to create Extended ISA or EISA to replace ISA.


Products & Services
Analog-to-digital converters (ADC) sample an analog signal and convert it to a series of digital values to represent the signal to a computer processor. Search by Specification | Learn more about Analog-to-Digital Converters
Data acquisition I/O modules or cards have both input and output functionality. Digital or discrete I/O modules include on-off signals used in communication, user interface, or control. Search by Specification | Learn more about Data Acquisition I/O Modules
Carrier cards and carrier boards are slotted so that other modules can be plugged into them. Carrier boards may be "slaves" (non-intelligent) or "intelligent." Search by Specification | Learn more about Carrier Cards and Carrier Boards
Digital signal processor (DSP) computer boards are central to the implementation of high-performance industrial systems. They collect and process digital data from many sources, and distribute the results to other elements of the system. Search by Specification | Learn more about DSP Boards
Bus extenders are used to increase cable lengths for distance-limited bus protocols. Search by Specification | Learn more about Bus Extenders

Product Announcements
Validyne Engineering - UPC Sensor Interface Cards
Sensor interface cards provide real world data acquisition and control for personal computers. These ISA/EISA cards accept up to 16 analog sensor inputs directly; no external signal conditioning is... (read more)
Northrop Grumman - Cutting Edge Optronics - Microchannel Cooled Laser Diodes
CEO's new, patented, IC3 cooler eliminates all the of the drawbacks of its copper based predecessors. The use of proprietary ceramic materials instead of copper eliminates the requirement for... (read more)

Topics of Interest
The MCA bus, which was designed to replace the ISA bus, uses IBM's microchannel architecture (MCA). MCA busses are capable of plug-and-play because adding a card to a microchannel computer does not... (Read More)
A key feature of PCI that distinguishes it from earlier busses such as ISA is the ability to dynamically configure a system to avoid resource conflicts. This is known as Plug-and-Play configurability... (Read More)
Serial ATA (Serial Advanced Technology Attachment, or SATA) is a serial interface standard that extends the ISA bus of the IBM PC-AT to attach peripherals. The original ATA is better known as IDE. (Read More)
The ThinkStation S10, the first new workstation from the successor to IBM, proves itself as a great midrange CAD system. The Lenovo ThinkStation S10 looks modest, but packs a lot of performance in an... (Read More)
ATA (Advanced Technology Attachment) is a disk drive implementation that integrates the controller on the disk drive itself. It is an interface standard that extends the ISA bus of the IBM PC-AT to... (Read More)