IBM Mwave
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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. The technology was utilized for a time to provide a combination modem/sound card for IBM's Aptiva line as well as being used in some ThinkPad laptops. 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.
[edit] 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.
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 exclusively, or using both at the same time. [1] Certain consumers were offered a check for the purchase of hardware to replace the Mwave card [2], while others were offered a replacement modem, sound card or both. [3] At one point, a class action lawsuit was filed. [4] The lawsuit 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 more conventional sound card and modem options.
Mwave in some form or another has been produced in MCA, ISA and PCMCIA form-factors. In addition 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).
Though Mwave adapter cards came into disuse, a Linux driver for the PCI based Mwave in ThinkPad 600 and 770 models was developed and released by IBM.
[edit] References
- "IBM Financed MWAVE Dumping". Retrieved on May 20, 2006.
- "Mwave at Watson". Retrieved on May 20, 2006.
- Mwave MDSP2780 as used in select ThinkPad 755, 760 and 765 models
- Mwave MDSP3780 as used in select ThinkPad 600 and 770 models
