
	Where results make sense

Topic: Micro Channel architecture MCA

	Micro Channel architecture - Wikipedia, the free encyclopedia
		Micro Channel architecture (in practice almost always shortened to MCA) was a proprietary 16 or 32-bit parallel computer bus created by IBM in the 1980s for use on their new PS/2 computers.
		Micro Channel was an attempt to address, once and for all, the problems that had come to plague the PC bus (later known as ISA).
		MCA disappeared within a few years after the introduction of the PCI bus, which was both technically superior and had much wider industry support.
	en.wikipedia.org /wiki/Micro_Channel_architecture (1240 words)

	Industry Standard Architecture - Wikipedia, the free encyclopedia
		In 1987, IBM moved to replace the ISA bus with their proprietary Micro Channel Architecture (MCA) in an effort to regain control of the PC architecture, and the PC market.
		MCA had done away with this complication, and PCI actually incorporated many of the ideas first explored with MCA (though it was more directly descended from EISA).
		The XT bus architecture is an eight-bit ISA bus used by Intel 8086 and Intel 8088 systems in the IBM PC and IBM PC XT in the 1980s.
	en.wikipedia.org /wiki/Industry_Standard_Architecture (784 words)

	Please title this page. (Page 1)
		After the channel is granted to the highest-priority requester, that requester continues to drive its arbitration level on the bus.
		Channel Ready: This signal is normally active (ready) and is driven inactive (not ready) by a slave to allow additional time to complete a channel cycle.
		Channel Reset - signal is generated by the system logic to reset or initialize all adapters at power-on or when a low voltage condition is detected.
	www.ece.unh.edu /courses/ece707_4/mca.html (4892 words)

	Micro Channel Architecture - MCA
		Short for Micro Channel Architecture, MCA was introduced by IBM in 1987.
		MCA, or the Micro Channel bus, was a competition for ISA bus.
		The MCA bus offered several additional features over the ISA such as a 32-bit bus (although there was also a 16-bit bus), automatically configure cards (similar to what Plug and Play is today), and bus mastering for greater efficiency.
	www.computerhope.com /jargon/m/mca.htm (93 words)

	Micro Channel Linux Home Page (Site not responding. Last check: 2007-10-31)
		Micro Channel is a workstation bus developed by IBM to deal with all the headaches of ISA.
		The main reason for this is the use of level triggered interrupts under the MCA architecture.
		In general, if a MCA device is just a clone of a ISA device, it may be that an existing Linux driver for the ISA device will be able to use it out of the box.
	www.dgmicro.com /mca (5126 words)

	MCA Pinout, Micro Channel Architecture, IBM PC Bus pinout
		The MCA bus is Obsolete; running at a 10MHz bus speed using either a 16 or 32 bit wide data bus, uP independent, asynchronous.
		The pinout for the MCA bus is shown in the table below; with the 'A' and 'C' connectors located on the component side of the board and the 'B' and 'D' connectors located on the circuit side of the board [back-side].
		The MCA bus uses the J1 A/B rows, and J2 [C/D rows] connectors.
	www.interfacebus.com /IBM_MCA_PinOut.html (377 words)

	MCA - Merchant Certification Authority erchant Certification Authority, Micro Channel Architecture
		(Micro Channel Architecture) This is a proprietary bus used in early IBM machines as a replacement for ISA.
		An MCA (Micro Channel Architecture) bus slot is a 32-bit expansion slot which was developed by IBM, totally incompatible with the PC bus.
		Funding for the MCA is central and thus Departments could take advantage of the agreement where Y2k compliance problems occur in older systems and where migration to newer software is possible.
	www.auditmypc.com /acronym/MCA.asp (514 words)

	I/O buses: ISA,MCA,EISA,VESA Local bus, PCI Local bus
		MCA (Micro Channel Architecture) was developed by IBM for its line of PS/2 desktop computers, Micro Channel Architecture is an interface between a computer (or multiple computers) and its expansion cards and their associated devices.
		MCA was a distinct break from previous bus architectures such as ISA.
		Special channels were created, along with circuitry to control them, that allowed the transfer of information without the processor controlling every aspect of the transfer.
	europa.nvc.cs.vt.edu /~cegyhazy/cs4014/Chapt4.htm (10561 words)

	Network Architecture - Building Servers
		MCA was remarkably visionary in its design, capabilities, and expandability, but IBM proceeded to let the euphoria over this accomplishment go to their heads, and made two drastic mistakes that forever prevented the MCA bus from becoming an industry standard.
		The Adaptec AHA-1640 Micro Channel SCSI host adapter, for example, is a 16-bit MCA card that suffers from the same 16M memory limitation as an ISA adapter using DMA does.
		MCA multiplexes the data transfer, using the 32 idle lines to double the throughput again to a 64-bit transfer, running at 80M/sec.
	library.mobrien.com:2031 /Manuals/network-architecture-Designing-Servers.htm (15697 words)

	Dual personal computer architecture peripheral adapter board and circuit - Patent 5162675
		To install the removable connector board for operation with an MCA architecture, the tracks 70 and 71 are aligned with the top and bottom edges of the cutout 105, with the component side 36 of the removable board 35 facing the same direction as the component side 11 of the main board 10.
		An MCA backplate 110 is secured to the board by aligning the holes in the backplate with the openings 97 and 98 in the grounding clips 95 and 96.
		The MCA system uses this bit to control whether 16 bits of data are to be transferred in a single bus cycle or 8 bits of data are to be transferred.
	www.freepatentsonline.com /5162675.html (14075 words)

	MCA (Site not responding. Last check: 2007-10-31)
		MCA Micro Computer Architecture, an alternate slot design used in early computers to provide 32 bit access, also the bus associated with such slots.
		MCA (Micro Channel Architecture) - A 32-bit standard developed by IBM for expansion cards.
		MCA operates at 16 or 32Mbps and uses software to configure resource settings.
	gisfigyelo.geocentrum.hu /lexikon/mca_en.html (392 words)

	Analog preamplifier measurement for a microphone array patent invention (Site not responding. Last check: 2007-10-31)
		Further, each of the input channels (i.e., each microphone/preamplifier combination) of such microphone arrays are typically matched so that that the sensitivity and frequency responses of those input channels are as close as possible to one another for any particular audio input.
		The maximum number of digital audio channels that can then be transmitted via the computer interface is then only limited by the maximum bandwidth of that computer interface in combination with the digital sampling rate of each channel of the microphone array.
		Each input channel is nominally the same, however, as non-matched electrical components may be used in the construction of the microphone array, it is to be expected that each channel of the microphone array will have different operational characteristics.
	www.freshpatents.com /Analog-preamplifier-measurement-for-a-microphone-array-dt20050804ptan20050169483.php?type=description (10214 words)

	Lloyd Borrett - Computing - Articles - IBM's Micro Channel Architecture
		The PS/2 model 30 used the familiar AT style bus and the models 50, 60 and 80 used the new Micro Channel Architecture (MCA).
		The problem that has dogged IBM ever since is that but a few existing and intending PC users are able to understand the concepts of MCA, and that almost no hardware add‑ons and software applications have been created to exploit the performance benefits of MCA.
		A system architecture designed to meet the need for improved reliability, data integrity, higher performance, and error recovery in a multi‑environment.
	www.borrett.id.au /computing/art-1989-03-01.htm (930 words)

	EISA - Extended Industry Standard Architecture
		Unlike the Micro Channel, an EISA bus is backward-compatible with 8- and 16-bit expansion cards designed for the ISA bus.
		Extended ISA was developed in response to IBM's proprietary Micro Channel Architecture bus (MCA).
		Unlike MCA, it was backwards compatible with the older 16 bit ISA bus.
	www.auditmypc.com /acronym/EISA.asp (796 words)

	Micro Channel Architecture (MCA) Bus
		The MCA bus (also called the Micro Channel bus; MCA stands for "Micro Channel Architecture") was IBM's attempt to replace the ISA bus with something "bigger and better".
		The MCA bus has some pretty impressive features considering that it was introduced in 1987, a full seven years before the PCI bus made similar features common on the PC.
		First, they made MCA incompatible with ISA; this means ISA cards will not work at all in an MCA system, one of the few categories of PCs for which this is true.
	www.pcguide.com /ref/mbsys/buses/types/olderMCA-c.html (518 words)

	Glossary Search Results
		The master/slave configuration is used not only to allow communications to work properly for two devices on one channel, but also so that there is a specific boot order when two or more IDE hard drives are encountered on a system.
		It is the most complex type of architecture, splitting the application and database management tasks into many discrete components.
		For example, take the three-tier architecture and change it so that the application logic is separate from the database management system--this gets you to four-tier architecture.
	www.geek.com /glossary/glossary_search.cgi?m (6633 words)

	What is MCA? IBM Micro Channel Architecture Proprietary Bus (Site not responding. Last check: 2007-10-31)
		MCA was a distinct break from previous bus architectures such as Industry Standard Architecture.
		The pin connections in MCA are smaller than other bus interfaces.
		Although MCA offers a number of improvements over other bus architectures, its proprietary, nonstandard aspects did not encourage other manufacturers to adopt it.
	bugclub.org /beginners/hardware/mca.html (109 words)

	LinuxGuruz Main Page (Site not responding. Last check: 2007-10-31)
		MCA is not compatible with either EISA or XT bus architecture so older cards cannot be used with it.
		As with the ROM BIOS in the first IBM PCs, figuring out the Micro Channel's secrets has been an arduous task of reverse engineering ever since the PS/2 line was announced.
		Consequently, the MCA has never become as wide spread as the competing EISA standard.
	foldoc.linuxguruz.org /foldoc.php?query=mca (121 words)

	MCA (Micro Channel Architecture) Definition
		Stands for "Micro Channel Architecture." It is an expansion bus created by IBM that was used in the company's PS/2 desktop computers.
		While the MCA bus architecture was an improvement in both size and speed over AT and ISA, it was kept as a proprietary standard by IBM.
		This discouraged other manufacturers from adopting the standard, since the MCA architecture was not compatible with other standards.
	www.techterms.org /definition/mca (169 words)

	EBN - PCI and Future Bus Architectures (Site not responding. Last check: 2007-10-31)
		Before the PCI bus architecture became the I/O system of choice, the EISA and ISA bus types were the most common.
		NGIO's channel architecture includes a Host Channel Adapter (HCA), which is an interface to and from the memory controller of a host.
		Currently, all three post-PCI architectures have support from big names in the hardware world, which is important since it is these vendors that will eventually develop servers, chipsets, boards, and other components that support one or more of the technologies currently on the table.
	www.itarchitect.com /shared/printableArticle.jhtml?articleID=8702415 (1750 words)

	Computer Knowledge - MCA
		MCA uses 90-pin, 22-pin, and 84-pin connectors (0.05-inch spacing).
		MCA also supported a 16-bit I/O; increasing the nunber of devices that could be addressed.
		There were other benefits to MCA but market factors made it only a limited success.
	www.cknow.com /ckinfo/m/MCA-MicroChannelArchitect.html (301 words)

	Glossary of Network Terms - PCNS
		In a Systems Network Architecture (SNA) environment, it is the software that controls the flow of information in a network.
		In disk duplexing, all data on one hard disk is duplicated on a second hard disk on a separate channel.
		In disk mirroring, all data on one hard disk is duplicated on a second hard disk on the same channel.
	www.pcns.net /netterms.html (7921 words)

	Motherboard Bus Slots
		The ISA bus (Industry Standard Architecture) was introduced in 1981 as an 8-bit architecture.
		Thus, the MCA (Micro Channel Architecture) bus was born.
		The EISA (Extended Industry Standard Architecture) was announced in September 1988 as a response to IBM's MCA bus.
	home.fuse.net /Walts_Place/motherboardslots.htm (1234 words)

	kbAlertz: (103915) - Micro Channel Architecture (MCA) computers are not compatible with the Microsoft bus mouse. The ... (Site not responding. Last check: 2007-10-31)
		The Microsoft bus mouse is not designed to be installed in a MCA machine.
		Micro Channel Architecture (MCA) computers are not compatible with the Microsoft bus mouse.
		All IBM PS/2 Model 50s and higher are MCA machines.
	www.kbalertz.com /kb_103915.aspx (388 words)

	AT bus - Ecommerce Guide - Terms You Need to Know to Do Business on the Internet
		In response, IBM introduced the Micro Channel Architecture (MCA) in 1987.
		However, MCA was not accepted by the computer industry because it was not backward compatible with the AT-bus, so IBM has been forced to drop it.
		Unlike MCA, EISA is backward compatible with the AT bus, so a computer equipped with an EISA bus can accept AT or EISA expansion boards.
	e-comm.webopedia.com /TERM/A/AT_bus.html (377 words)

	DaveNet : The Micro Channel Architecture
		In 1987 IBM made their move, releasing a three-way noose for the nascent independent computer industry lead by Compaq.
		The three components were the PS/2, OS/2 and the secret sauce -- the Micro Channel Architecture.
		Probably one person in a million understood what it was, and no one had a clue why it was so killer (it wasn't) and that's why it was so effective at clouding the judgment of so many.
	davenet.scripting.com /2001/07/06/theMicroChannelArchitecture (803 words)

	What is EISA? - A Word Definition From the Webopedia Computer Dictionary
		The principal difference between EISA and MCA is that EISA is backward compatible with the ISA bus (also called the AT bus), while MCA is not.
		EISA and MCA are not compatible with each other.
		Instead, a new technology called local bus (PCI) is being used in combination with the old ISA bus.
	www.webopedia.com /TERM/E/EISA.html (211 words)

	buses
		The Micro Channel Architecture (MCA) was IBM's attempt to improve the PC/XT bus and the AT
		It was developed in response to the IBM efforts with the Michrochannel Architecture (MCA).
		MCA at this time responded with a bus clock rate of 20Mhz and a
	wwwcsif.cs.ucdavis.edu /~cs150b/buses.html (2534 words)

	AMIDiag - Industry Standard PC Diagnostics
		Refers to a feature supported by some bus architectures that enables a controller connected to the bus to communicate directly with other devices on the bus without going through the CPU.
		Hub architecture components are linked using a high-speed âhub linkâ bus, rather than the Northbridgeâs PCI bus.
		A standard bus (computer interconnection) architecture that is associated with the IBM AT motherboard.
	www.amidiag.com /support/glossary.cfm (11666 words)

Try your search on: Qwika (all wikis)