Laser Magnetic Storage International


Laser Magnetic Storage International 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
  • CDD 461: 1× speed
  • CDD 462: 1× speed
  • 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
; 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:
CM 153: 8-bit ISA
  • CM 155: 8-bit ISA
  • CM 50 interface: 8-bit ISA
  • CM 250: 8-bit ISA
  • CM 260: 16-bit ISA
; Motherboard-integrated