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NCR 53C9x
 
 
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The NCR 53C9x is a chipset
Chipset

A chipset or chip set refers to a group of integrated circuits, or chips, that are designed to work together. They are usually marketed as a single product....
 made by the former NCR Corporation
NCR Corporation

NCR Corporation is a technology company specializing in products for the retail and financial sectors. Its main products are point of sale, automatic teller machines, cheque processing systems, barcode reader, and business consumables....
 for implementing the SCSI
SCSI

Small Computer System Interface, or SCSI , is a set of standards for physically connecting and transferring data between computers and peripheral devices....
 protocol. The 53C9x is a low-cost solution and was therefore widely adopted by OEM
OEM

OEM may stand for:* Original equipment manufacturer, the original manufacturer of a component for a product, which may be resold by another company...
s in various motherboard
Motherboard

A motherboard is the central printed circuit board in some complex electronic systems, such as modern personal computers. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple Inc....
 and peripheral device designs; however, the chipset lacks many features commonly attributed as beneficial aspects of SCSI interfaces—for example, the 53C9x lacks Direct memory access
Direct memory access

Direct memory access is a feature of modern computers and microprocessors that allows certain hardware subsystems within the computer to access system Computer storage for reading and/or writing independently of the central processing unit....
 (DMA) or bus-mastering
Bus mastering

In computing, bus mastering is a feature supported by many computer buss that enables a device connected to the bus to initiate transactions. Also called "First-party DMA", to contrast it with Third-party DMA, the situation where the system DMA controller is actually doing the transfer....
 capability, and therefore drivers for the chipset consume more processor cycles than those for chipsets which implement such features, due to the necessity of programmed IO.

QLogic
QLogic

File:ML-QLOGICNFCCONN.JPGQLogic Corporation is a Aliso Viejo, California-based manufacturer of storage and system networking infrastructure solutions....
 FAS216 and Emulex
Emulex

Emulex is a California based manufacturer of storage networking infrastructure solutions. Products include Fibre Channel host bus adapters , Fibre Channel over Ethernet converged network adapters , embedded storage switches, storage I/O controller and Storage area network Fibre Channel switch products....
 ESP100 chips are a drop-in replacement for the NCR 53C94.

A list of systems which include the 53C9x chipset includes:

53C94



53C96






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Encyclopedia


The NCR 53C9x is a chipset
Chipset

A chipset or chip set refers to a group of integrated circuits, or chips, that are designed to work together. They are usually marketed as a single product....
 made by the former NCR Corporation
NCR Corporation

NCR Corporation is a technology company specializing in products for the retail and financial sectors. Its main products are point of sale, automatic teller machines, cheque processing systems, barcode reader, and business consumables....
 for implementing the SCSI
SCSI

Small Computer System Interface, or SCSI , is a set of standards for physically connecting and transferring data between computers and peripheral devices....
 protocol. The 53C9x is a low-cost solution and was therefore widely adopted by OEM
OEM

OEM may stand for:* Original equipment manufacturer, the original manufacturer of a component for a product, which may be resold by another company...
s in various motherboard
Motherboard

A motherboard is the central printed circuit board in some complex electronic systems, such as modern personal computers. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple Inc....
 and peripheral device designs; however, the chipset lacks many features commonly attributed as beneficial aspects of SCSI interfaces—for example, the 53C9x lacks Direct memory access
Direct memory access

Direct memory access is a feature of modern computers and microprocessors that allows certain hardware subsystems within the computer to access system Computer storage for reading and/or writing independently of the central processing unit....
 (DMA) or bus-mastering
Bus mastering

In computing, bus mastering is a feature supported by many computer buss that enables a device connected to the bus to initiate transactions. Also called "First-party DMA", to contrast it with Third-party DMA, the situation where the system DMA controller is actually doing the transfer....
 capability, and therefore drivers for the chipset consume more processor cycles than those for chipsets which implement such features, due to the necessity of programmed IO.

QLogic
QLogic

File:ML-QLOGICNFCCONN.JPGQLogic Corporation is a Aliso Viejo, California-based manufacturer of storage and system networking infrastructure solutions....
 FAS216 and Emulex
Emulex

Emulex is a California based manufacturer of storage networking infrastructure solutions. Products include Fibre Channel host bus adapters , Fibre Channel over Ethernet converged network adapters , embedded storage switches, storage I/O controller and Storage area network Fibre Channel switch products....
 ESP100 chips are a drop-in replacement for the NCR 53C94.

A list of systems which include the 53C9x chipset includes:

53C94

  • Sun Microsystems
    Sun Microsystems

    Sun Microsystems, Inc. is a multinational corporation vendor of computers, computer components, computer software, and information technology services, founded on February 24, 1982....
     SPARCstation
    SPARCstation

    The SPARCstation, SPARCserver and SPARCcenter product lines were a series of SPARC-based computer workstations and server s in desktop, deskside and rack-based form factor developed and sold by Sun Microsystems...
    s and the SPARCclassic
  • DEC 3000 AXP
    DEC 3000 AXP

    DEC 3000 AXP was the name given to a series of computer workstations and server computers, produced from 1992 to around 1995 by Digital Equipment Corporation....
  • DECstation
    DECstation

    The DECstation was a brand of computers used by Digital Equipment Corporation, and refers to three distinct lines of computer systems—the first released in 1978 as a word processing system, and the latter two both released in 1989....
    s and the PMAZ-A TURBOchannel
    TURBOchannel

    TURBOchannel is an open computer bus developed by Digital Equipment Corporation by during the late 1980s and early 1990s. Although it was open for any vendor to implement in their own systems, it was mostly used in Digital's own systems such as the MIPS architecture-based DECstation and DECsystem systems, in the VAXstation#VAXstation 4000 S...
     card
  • MIPS Magnum
    MIPS Magnum

    The MIPS Magnum was a line of computer workstations designed by MIPS Technologies and based on the MIPS architecture series of RISC microprocessors....
  • Power Macintosh G3
    Power Macintosh G3

    The Power Macintosh G3, commonly called "beige G3s" or "platinum G3s" for the color of their cases, was a series of personal computers designed, manufactured, and sold by Apple Inc....
     (often used as a secondary SCSI controller with MESH (Macintosh Enhanced SCSI Hardware) as the primary)


53C96
  • Macintosh Quadra
    Macintosh Quadra

    The Macintosh Quadra series was Apple Computer's product family of professional high-end Apple Macintosh personal computers built using the Motorola 68040 central processing unit....
     650