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Mwave

{{For|the sporting arena|M-Wave}}

{{Refimprove|date=March 2016}}

{{Infobox CPU architecture

| name = Mwave

| image = Mwave logo.svg

| designer = International Business Machines Corporation (IBM)

| bits = 16-bit

| introduced = {{ubl|{{start date|1992|11}} (formal){{cite journal | last=Corcoran | first=Cate | date=November 2, 1992 | url=https://books.google.com/books?id=hVEEAAAAMBAJ&pg=PA32 | title=Multimedia on a chip debuts | journal=InfoWorld | publisher=IDG Publications | volume=14 | issue=44 | page=32 | via=Google Books}}|1981 (prototype)}}

}}

Mwave was a technology developed by IBM allowing for the combination of telephony and sound card features on a single adapter card. The technology centers around the Mwave digital signal processor (DSP). The technology was used for a time to provide a combination modem and sound card for IBM's Aptiva line and some ThinkPad laptops, in addition to uses on specialized Mwave cards that handled voice recognition or ISDN networking connectivity. Similar adapter cards by third-party vendors using Mwave technology were also sold. However, plagued by consumer complaints about buggy Mwave software and hardware, IBM eventually turned to other audio and telephony solutions for its consumer products.

History

Malcolm Ware, a former developer on Mwave, dates the technology back to its development in an IBM research lab in Zurich, Switzerland in 1979. The first prototype was tested in an IBM PC in 1981. After being utilized in some other adapter cards, Mwave was given its official name and used in IBM's WindSurfer ISA/MCA card. IBM manufactured Mwave hardware for both Microsoft Windows and its own OS/2. Another revision of the technology was used in IBM's newly renamed Aptiva line. Gary Harper developed some automated test software, loosely based on the movie WarGames, to test how well the Mwave modem could connect to modems used by various bulletin board systems.

Image:Mwave.jpg

One of the revisions of the Mwave card was the Mwave Dolphin. The card was an ISA legacy card that did not support plug and play and natively supported Windows through its software. It featured a 28.8k/second fax/modem and a Sound Blaster-compatible audio solution. One of the card's most publicized features was its software upgradeability: a version of the Mwave software upgraded the modem function to 33.6k. In addition, the card was key in the support of some of the Aptiva's Rapid Resume features, including Wake-up On Ring. There were various consumer complaints with users reporting problems involving either the sound or modem features separately, or using both at the same time.{{cite web|last=Schneider|first=Don|url=http://members.aol.com/mbs1058/mwave/issues.html |title=MWave Issues |url-status=dead |archiveurl=https://web.archive.org/web/20000612174105/http://members.aol.com/mbs1058/mwave/issues.html |archivedate=June 12, 2000 }} Some consumers were offered a check for the purchase of hardware to replace the Mwave card,{{cite web|last=Schneider|first=Don|url=http://members.aol.com/mbs1058/mwave/check.html |title=MWave Check |url-status=dead |archiveurl=https://web.archive.org/web/20000612174105/http://members.aol.com/mbs1058/mwave/check.html |archivedate=June 12, 2000 }} while others were offered a replacement modem, sound card or both.{{cite web|last=Schneider|first=Don|url=http://members.aol.com/mbs1058/mwave/deal.html |title=MWave Deal |url-status=dead |archiveurl=https://web.archive.org/web/20000612174105/http://members.aol.com/mbs1058/mwave/deal.html |archivedate=June 12, 2000 }} At one point, a class action lawsuit was filed;{{cite web|last=Schneider|first=Don|url=http://members.aol.com/mbs1058/mwave/classact.html |title=Class Action Suit Against IBM |url-status=dead |archiveurl=https://web.archive.org/web/20000611213036/http://members.aol.com/mbs1058/mwave/classact.html |archivedate=June 11, 2000 }} it was finally settled in 2001.

Mwave Dolphin drivers version 20D and the Stingray version of the Mwave adapter addressed some shortcomings of the Dolphin (Stingray added plug and play support), but IBM eventually stopped using the Mwave adapter card in its Aptiva computers and resorted to conventional sound card and modem options.

Mwave in some form or another has been produced for the MCA, ISA and PCMCIA busses. Select ThinkPad 600 and 770 models had a PCI version integrated (the Mwave chip integrated in select ThinkPad 755, 760 and 765 models was ISA-based). Certain Sun SPARCstation workstations incorporated the Mwave DSP chip for sound card functionality.

Although Mwave adapter cards were discontinued, a Linux driver for the PCI-based Mwave in the ThinkPad 600 and 770 models was developed and released by IBM.{{Cite web |title=Linux Technology Center: ACP Modem Driver for Linux |url=http://www-124.ibm.com:80/acpmodem/ |url-status=dead |archive-url=https://web.archive.org/web/20050223085359/http://www-124.ibm.com:80/acpmodem/ |archive-date=2005-02-23 |website=IBM developerWorks}}

See also

References

{{Reflist}}

;Notes

  • {{cite web|last=Schneider|first=Don|url=http://members.aol.com/mbs1058/mwave/mwave_dump.html |title=IBM Financed MWAVE Dumping |accessdate=May 20, 2006 |url-status=dead |archiveurl=https://web.archive.org/web/20000612174105/http://members.aol.com/mbs1058/mwave/mwave_dump.html |archivedate=June 12, 2000 }}
  • {{cite web|last=Bryer|first=Jeff|url=http://watson.mbb.sfu.ca/hardware/dsp1000.telsndhw.html |title=Mwave Based Telephony/Sound Combo Cards, MDSP1000|accessdate=May 20, 2006 |archiveurl = https://web.archive.org/web/19980115055832/http://watson.mbb.sfu.ca/hardware/dsp1000.telsndhw.html |archivedate = January 15, 1998}}

External links

  • {{cite web|archive-url=https://web.archive.org/web/19970504235004/http://www.can.ibm.com/helpware/thinkhw.html|url=http://www.can.ibm.com/helpware/thinkhw.html|url-status=dead|title=IBM ThinkPad general hardware questions and answers § Mwave Audio|archive-date=4 May 1997|website=IBM.com}}
  • [http://tedfelix.com/Mwave/ Ted Felix's Mwave page]
  • [https://web.archive.org/web/19980710220417/http://watson.mbb.sfu.ca/mwave.html Jeff Bryer's unofficial Mwave home page]
  • [http://www.thinkwiki.org/wiki/MWave_MDSP2780 Mwave MDSP2780], as used in select ThinkPad 755, 760 and 765 models, at ThinkWiki.org
  • [http://www.thinkwiki.org/wiki/MWave_MDSP3780 Mwave MDSP3780], as used in select ThinkPad 600 and 770 models, at ThinkWiki.org

{{IBM personal computers}}

Mwave

Mwave

Category:Digital signal processors

Category:Computer-related introductions in 1992