Laser Magnetic Storage International

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Laser Magnetic Storage International

Type	Subsidiary
Industry	Data storage
Founded	April 1986; 40 years ago (1986-04) in Mississauga, Ontario
Defunct	July 1992 (1992-07)
Fate	Reorganized
Successor	Philips LMS
Products	Optical and magnetic media
Parent	Philips Control Data (1986–1992)

Laser Magnetic Storage International (LMSI) was a subsidiary of Philips that designed and manufactured optical and magnetic media. It began as a joint venture between Philips and Control Data Corporation. It later became Philips LMS.

Products

LMSI developed a proprietary CD-ROM interface. Early iterations relied on many 7400-series chips – on the CM 153 card for example. Later on, this bus was based on the highly integrated NCR chip – NCR © DIGBIE LMS 97644845-00 0390471 on the CM 260 for example.

External CD-ROMs, LMSI interface

CDD 401: 1× speed (rebranded CM 221)
CDD 461: 1× speed
CDD 462: 1× speed (same as CDD 461 but with multi-session support)
CM 50: 1× speed
CM 100: 1× speed – the world's first CD-ROM drive
CM 121: 1× speed
CM 221: 1× speed
CM 225: ?× speed

External CD-ROMs, SCSI interface

CDD 521: 2× speed
CDD 522: 2× speed
CDD 552: ?× speed
CDD 2000: 4× speed
CDD 2600: 6× read, 2x write
CM 110: ?× speed
CM 231: 1× speed
CM 234: ?× speed

Internal CD-ROMs, LMSI interface

CM 201: 1× speed
CM 205: 1× speed
CM 206: 2× speed
CM 210: ?× speed

Internal CD-ROMs, SCSI interface

CM 121: 1× speed
CM 201: 1× speed
CM 204: ?× speed
CM 212: ?× speed
CM 214: ?× speed
PCA80SC: 8× speed^{[citation needed]}

Internal CD-ROMs, IDE interface

CDD 3610: 6× speed
CDD 3801: 32× speed
CDD 4201: ?× speed
CDD 4401: ?× speed
CDD 4801: ?× speed
CM 202: 2× speed
CM 207: ?× speed
CM 208: ?× speed
CM 218: ?× speed

ISA LMSI controller cards

LMSI CM 153, ISA CD-ROM interface board
CM 153: 8-bit ISA (coupled with the CM 100 and the CM 201)
CM 155: 8-bit ISA (coupled with the CM 100, the CM 201 and the CM 210)
CM 50 interface: 8-bit ISA (coupled with the CM 50)
CM 250: 8-bit ISA (coupled with the CM 205)
CM 260: 16-bit ISA (coupled with the CM 206)

Motherboard-integrated

Certain Tandy Sensation models featured a LMSI controller PCB connected to the motherboard.
The proprietary 16-pin LMSI CD-ROM interface was relatively short lived and existed on LMSI interface cards and a few ISA sound cards. These sound cards only have internal LMSI connectors, not the external DB-15 connector for external LMSI devices (the DB-15 on sound cards is the game port/UART MPU-401):
- Sound Blaster Pro 2 CT1620
- Sound Blaster 16 ASP CSP CT1780
- Media Vision Jazz 16 LMSI
- Pro Audio Spectrum LMSI
- Pro Audio 16 LMSI
- Generic 16-bit ISA cards with the Aztech AZTPR16 DSP (FCC ID 138-MMSN808)
Magnetic products were geared towards corporate mini computer environments (like the IBM AS/400):
- LD 510: internal SCSI MO drive
- LD 520: external MO drive
- LD 1200: external WORM drive
- LD 4100: cartridge optical storage
- LD 6100: external WORM drive
- LF 4500: cartridge optical storage

References

↑ Staff writer (6 August 1986). "Company News". Minneapolis Star and Tribune. Star Tribune Newspaper of the Twin Cities: 2M. ProQuest 417686403.
↑ Chevreau, Jonathan (17 November 1986). "Optical discs next to join paper war". The Globe and Mail: C6. ProQuest 386015283.
1 2 3 4 Pastrick, Greg (29 October 1991). "LMSI CM 231". PC Magazine. Ziff-Davis: 336–337. ISSN 0888-8507.
↑ Sehr, Barbara (24 August 1987). "WORM standard debate breeds world of confusion". Computerworld. IDG Enterprise: 64–65. ISSN 0010-4841.
↑ Staff writer (July 1992). "Laser Magnetic Storage International Becomes Part of Philips". CD-ROM Professional. 5 (4). Online, Inc.: 115. ProQuest 224087632.
↑ "Index of /parts/philips/CDD401". Retrocomputing.net. Archived from the original on 6 July 2018. Retrieved 6 July 2018.
↑ "2-evoleur vers le multimedia" [2 moves toward multimedia]. Soft & Micro (in French) (85). Excelsior Publications. May 1992. Retrieved 2 May 2022 – via 1001mags.
↑ "Magnavox Multi-Disc CD Player". eBay. 2018. Archived from the original on 6 July 2018.^{[self-published source]}
1 2 3 "Produits en connexion directe sur port parallele" [Products in direct connection with parallel port]. SVM (110). Excelsior Publications: 276–277. November 1993. Retrieved 2 May 2022.
↑ Lode, Trygve (April 2001). "Weird World of Hardware". The Treehouse.
1 2 3 4 Rosen, Linda; Stephen E. Arnold (1990). Managing the New Electronic Information Products (PDF). Riverside Data. pp. 71–91. ISBN 9780962557705 – via Stephen E. Arnold.
↑ Wherry, Frederick F.; Juliet B. Schor (2015). Sage Publications. p. 316. ISBN 9781506346175 https://books.google.com/books?id=ByWDCwAAQBAJ – via Google Books. {{cite book}}: Missing or empty |title= (help)
↑ Quain, John R. (22 December 1992). "LMS CM225". PC Magazine. 11 (22). Ziff-Davis: 316–317.
↑ "Philips CDD 521 – Compact Disc Recorder". Centre for Computing History. February 2018.
↑ "Philips CDD 522 2× SCSI CD recorder". Dutch Audio Classics. 2011. Archived from the original on 5 February 2011.
↑ "Philips CDD 522". Vintage Audio Laser. 12 April 2013. Archived from the original on 12 April 2013.
↑ "Philips CDD 2000 SCSI External CD-R Drive". Recycled Goods. Archived from the original on 6 July 2018. Retrieved 2 May 2022.^{[self-published source]}
↑ "Philips CDD 2600 SCSI External Drive Enclosure". WorthPoint. Archived from the original on 6 July 2018.^{[self-published source]}
↑ Stravers, Kees (22 March 1999). "Kees's Computer Home: Study room". Archived from the original on October 2, 2000.
1 2 "Du standard au marché" [From standard to market]. SVM (in French) (39). Excelsior Publications. May 1987.
↑ Staff writer (14 June 1993). "Pipeline: Shipping". InfoWorld. IDG Publications. p. 29.
1 2 Michel, Christian (14 April 1990). "CeBit '90: »Meet the Experts«". JurPC: 557–562. doi:10.7328/jurpc/19905439.
↑ Mace, Scott (23 October 1989). "LMS Introduces SCSI Half-Height CD-ROM Drive with 64K Buffer". InfoWorld. IDG Publications.
↑ Steve (20 January 1998). "Philips CM 202". Very Computer. Retrieved 2 May 2022.^{[self-published source]}
↑ "Les accessories du son et de l'image" [Sound and image accessories]. SVM (in French). Excelsior Publications. March 1992. Retrieved 2 May 2022.
↑ "Philips CM 207 CD-ROM Drive". Centre for Computing History. Archived from the original on 5 September 2009.
1 2 3 4 "Philips/Magnavox CD-ROM Drives". IBM ValuePoint Collection. July 2018. Archived from the original on 6 July 2018. Retrieved 6 July 2018.^{[self-published source]}
↑ Jueden, Shelby (20 August 2022), Philips CM-153 LMSI Reproduction Card, retrieved 28 August 2022
↑ Yau, Joseph K. K. (21 August 1992). "Help: Philips' CM 155 interface + CM 100 CD drive". Archived from the original on 5 September 2022.
↑ "Philips CM 50 (externes CD-ROM Laufwerk)". Planet 3DNow! Forum. 15 March 2008. Retrieved 2 May 2022.^{[self-published source]}
↑ Patten, D. (11 January 2009). "Semi-vintage stuff for sale". Vintage Computer Federation.^{[self-published source]}
↑ "/parts/philips/CM260/P0023867.JPG". Archived from the original on 25 December 2014. Retrieved 19 December 2014.
↑ "Onboard SCSI 486sx?". Vintage Computer Federation. Archived from the original on 26 November 2018. Retrieved 25 November 2018.^{[self-published source]}
↑ Staff writer (20 May 1991). "Data storage". Computerworld. IDG Publications. p. 45.
1 2 Staff writer (4 June 1990). "Data storage". Computerworld. IDG Publications. p. 37.