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Founded in 1982 by William J. Casey, BSEE, Univ. of Notre Dame and a decorated (very lightly) Army veteran, ASC has long been one of the technical leaders in SCSI development. It has played a part in the movement of the PC from a hobby item to the incredibly powerful machine it is today.  It has pioneered in areas such as SCSI ANSI standards development, advanced caching disk controllers, CD-ROM interfaces, SCSI Host Bus Adapters and now SCSI Target-device emulation.

Some key historical highlights:

  •  ASC, represented by Mr. Casey, participated as a founding member of the original SCSI-1 ANSI standards committee.
  •  Built the ASC-525, a SCSI caching disk controller for ST-506 hard drives containing a custom, quasi-real-time OS and very advanced, disk-caching algorithms.
  •  Built the ASC-88 SCSI HBA (host bus adapter), one of the earliest HBAs for the fledgling PC and the first with a generic BIOS chip and API on board.
  •  Designed and manufactured the world's first SCSI interface for a CD-ROM disk player for CD-ROM inventor NV Philips in Eindhoven, Netherlands.
  •  Provided CD-ROM access for the early, computerized, car-diagnostic machines to a majority of GM dealerships.
  •  Throughout the '90s virtually every newspaper picture with AP attribution seen around the world, passed through (in digital form) an ASC-86 (ISA; obsolete) HBA.
  •  Supplied the means for IBM (now Hitachi) to qualify multiple SCSI disk drives simultaneously.
  •  Now providing the VirtualSCSI tool and Target adapters as key components in Alcatel's worldwide, telephone switching systems.
  •  Developed embedded emulation system for Boeing's AWACS (E3) program.

  •  Assisting the Honeywell ground controllers for the International Space Station via our VirtualSCSI tool.
  •  Helping Roland, Korg, etc. audio recording engineers world-wide gain access to PC platform for backup, live recording and CD-R emulation with our VirDIS emulation tool.

In other areas Mr. Casey, who also founded a consulting firm and Logic Sciences, Inc., a seismic electronics provider, co-authored a parallel-instruction processing patent some of whose concepts are only now being utilized in Intel's latest line of 64-bit processors. He also independently developed the Bresenham straight line algorithm for use in digital plotters, the key feature of which was the avoidance of any costly arithmetic operations.


Finally, one of the foremost considerations for a customer is TECH SUPPORT. Most manufacturers today are virtually impossible to reach, which is distressing considering the number of possible problems one can encounter in today's high tech PC environment. ASC prides itself on addressing ALL tech support issues for ALL its customers regardless of size.


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Last modified: 30-Jun-2009