Laser Magnetic Storage International

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Laser Magnetic Storage International
Company typeSubsidiary
IndustryData storage
FoundedApril 1986; 38 years ago (1986-04) in Mississauga, Ontario[1][2]
DefunctJuly 1992 (1992-07)
FateReorganized
SuccessorPhilips LMS
ProductsOptical and magnetic media
Parent

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]

Products[edit]

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
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[edit]

  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. ^ a b c d 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. 5 (4). Online, Inc.: 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) (85). Excelsior Publications. May 1992. Retrieved 2 May 2022 – via 1001mags.
  8. ^ "Magnavox Multi-Disc CD Player". eBay. 2018. Archived from the original on 6 July 2018.[self-published source]
  9. ^ a b c "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.
  10. ^ Lode, Trygve (April 2001). "Weird World of Hardware". The Treehouse.
  11. ^ a b c d 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. 11 (22). Ziff-Davis: 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.[self-published source]
  17. ^ "Philips CDD 2600 SCSI External Drive Enclosure". WorthPoint. Archived from the original on 6 July 2018.[self-published source]
  18. ^ Stravers, Kees (22 March 1999). "Kees's Computer Home: Study room". Archived from the original on October 2, 2000.
  19. ^ a b "Du standard au marché" [From standard to market]. SVM (in French) (39). Excelsior Publications. May 1987.
  20. ^ Staff writer (14 June 1993). "Pipeline: Shipping". InfoWorld. IDG Publications. p. 29.
  21. ^ a b 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. Retrieved 2 May 2022.[self-published source]
  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. ^ a b c d "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]
  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.[self-published source]
  30. ^ Patten, D. "Semi-vintage stuff for sale". Vintage Computer Federation.[self-published source]
  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.[self-published source]
  33. ^ Staff writer (20 May 1991). "Data storage". Computerworld. IDG Publications. p. 45.
  34. ^ a b Staff writer (4 June 1990). "Data storage". Computerworld. IDG Publications. p. 37.
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