Laser Magnetic Storage International

Laser Magnetic Storage International (LMSI) was a subsidiary of Philips that designed and manufactured optical and magnetic media.[3] It began as a joint venture between Philips and Control Data Corporation.[4] It later became Philips LMS.[5]

Laser Magnetic Storage International
TypeSubsidiary
IndustryData storage
FoundedApril 1986 (1986-04) in Mississauga, Ontario[1][2]
DefunctJuly 1992 (1992-07)
FateReorganized
SuccessorPhilips LMS
ProductsOptical and magnetic media
Parent

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)[6][7]
  • CDD 461: 1× speed[8]
  • CDD 462: 1× speed (same as CDD 461 but with multi-session support)[9]
  • CM 50: 1× speed
  • CM 100: 1× speed[10][11]
  • CM 121: 1× speed
  • CM 221: 1× speed
  • CM 225: ?× speed[12]
External CD-ROMs, SCSI interface
  • CDD 521: 2× speed[13]
  • CDD 522: 2× speed[14]
  • CDD 552: ?× speed[15]
  • CDD 2000: 4× speed[16]
  • CDD 2600: 6× read, 2x write[17]
  • CM 110: ?× speed[18]
  • CM 231: 1× speed[3]
  • CM 234: ?× speed[9]
Internal CD-ROMs, LMSI interface
Internal CD-ROMs, SCSI interface
  • CM 121: 1× speed[21]
  • CM 201: 1× speed[22][21]
  • CM 204: ?× speed[3]
  • CM 212: ?× speed
  • CM 214: ?× speed[3][9]
  • PCA80SC: 8× speed
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[23][24]
  • CM 207: ?× speed[25]
  • CM 208: ?× speed
  • CM 218: ?× speed
ISA LMSI controller cards
  • CM153 3D Rendering
    3D rendering of the LMSI CM153 ISA CDROM interface board
    CM 153: 8-bit ISA (coupled with the CM 100 and the CM 201)[26][27]
  • CM 155: 8-bit ISA (coupled with the CM 100, the CM 201 and the CM 210)[28][11]
  • CM 50 interface: 8-bit ISA (coupled with the CM 50)[29]
  • CM 250: 8-bit ISA (coupled with the CM 205)[30][26]
  • CM 260: 16-bit ISA (coupled with the CM 206)[31][26]
Motherboard-integrated
  • Certain Tandy Sensation models featured a LMSI controller PCB connected to the motherboard.[32]
  • 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):
  • Magnetic products were geared towards corporate mini computer environments (like the IBM AS/400):[33]
    • LD 510: internal SCSI MO drive
    • LD 520: external MO drive
    • LD 1200: external WORM drive[26]
    • LD 4100: cartridge optical storage[34]
    • LD 6100: external WORM drive
    • LF 4500: cartridge optical storage[34]

References
  1. Staff writer (6 August 1986). "Company News". Minneapolis Star and Tribune. Star Tribune Newspaper of the Twin Cities: 2M – via ProQuest.
  2. Chevreau, Jonathan (17 November 1986). "Optical discs next to join paper war". The Globe and Mail: C6 – via ProQuest.
  3. Pastrick, Greg (29 October 1991). "LMSI CM 231". PC Magazine. Ziff-Davis: 336–337. ISSN 0888-8507.
  4. Sehr, Barbara (24 August 1987). "WORM standard debate breeds world of confusion". Computerworld. IDG Enterprise: 64–65. ISSN 0010-4841.
  5. Staff writer (July 1992). "Laser Magnetic Storage International Becomes Part of Philips". CD-ROM Professional. Online, Inc. 5 (4): 115 – via ProQuest.
  6. "Index of /parts/philips/CDD401". Retrocomputing.net. Archived from the original on 6 July 2018. Retrieved 6 July 2018.
  7. "2-evoleur vers le multimedia" [2 moves toward multimedia]. Soft & Micro (in French). Excelsior Publications (85). May 1992. Retrieved 2 May 2022 – via 1001mags.
  8. "Magnavox Multi-Disc CD Player". eBay. 2018. Archived from the original on 6 July 2018.
  9. "Produits en connexion directe sur port parallele" [Products in direct connection with parallel port]. SVM. Excelsior Publications (110): 276–277. November 1993. Retrieved 2 May 2022.
  10. Lode, Trygve (April 2001). "Weird World of Hardware". The Treehouse.
  11. Rosen, Linda; Stephen E. Arnold (1990). Managing the New Electronic Information Products (PDF). Riverside Data. pp. 71–91. ISBN 9780962557705 – via Stephen E. Arnold.
  12. Quain, John R. (22 December 1992). "LMS CM225". PC Magazine. Ziff-Davis. 11 (22): 316–317.
  13. "Philips CDD 521 – Compact Disc Recorder". Centre for Computing History. February 2018.
  14. "Philips CDD 522 2× SCSI CD recorder". Dutch Audio Classics. 2011. Archived from the original on 5 February 2011.
  15. "Philips CDD 522". Vintage Audio Laser. 12 April 2013. Archived from the original on 12 April 2013.
  16. "Philips CDD 2000 SCSI External CD-R Drive". Recycled Goods. Archived from the original on 6 July 2018. Retrieved 2 May 2022.
  17. "Philips CDD 2600 SCSI External Drive Enclosure". WorthPoint. Archived from the original on 6 July 2018.
  18. Stravers, Kees (22 March 1999). "Kees's Computer Home: Study room". Archived from the original on October 2, 2000.
  19. "Du standard au marché" [From standard to market]. SVM (in French). Excelsior Publications (39). May 1987.
  20. Staff writer (14 June 1993). "Pipeline: Shipping". InfoWorld. IDG Publications. p. 29.
  21. Michel, Christian (14 April 1990). "CeBit '90: »Meet the Experts«". JurPC: 557–562. doi:10.7328/jurpc/19905439.
  22. Mace, Scott (23 October 1989). "LMS Introduces SCSI Half-Height CD-ROM Drive with 64K Buffer". InfoWorld. IDG Publications.
  23. Steve (20 January 1998). "Philips CM 202". Very Computer. Archived from the original on 15 August 2022. Retrieved 2 May 2022.
  24. "Les accessories du son et de l'image" [Sound and image accessories]. SVM (in French). Excelsior Publications. March 1992. Retrieved 2 May 2022.
  25. "Philips CM 207 CD-ROM Drive". Centre for Computing History. Archived from the original on 5 September 2009.
  26. "Philips/Magnavox CD-ROM Drives". IBM ValuePoint Collection. July 2018. Archived from the original on 6 July 2018. Retrieved 6 July 2018.
  27. Jueden, Shelby (20 August 2022), Philips CM-153 LMSI Reproduction Card, retrieved 28 August 2022
  28. Yau, Joseph K. K. (21 August 1992). "Help: Philips' CM 155 interface + CM 100 CD drive". Archived from the original on 5 September 2022.
  29. "Philips CM 50 (externes CD-ROM Laufwerk)". Planet 3DNow! Forum. 15 March 2008. Retrieved 2 May 2022.
  30. Patten, D. "Semi-vintage stuff for sale". Vintage Computer Federation.
  31. "/parts/philips/CM260/P0023867.JPG". Archived from the original on 25 December 2014. Retrieved 19 December 2014.
  32. "Onboard SCSI 486sx?". Vintage Computer Federation. Archived from the original on 26 November 2018. Retrieved 25 November 2018.
  33. Staff writer (20 May 1991). "Data storage". Computerworld. IDG Publications. p. 45.
  34. Staff writer (4 June 1990). "Data storage". Computerworld. IDG Publications. p. 37.
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