Powered by a 16MHz Motorola 68030 processor.
Same form factor as the Macintosh IIci though there are some differences between these systems:
- Does not have the cache card option as found in the IIci
- Does not have onboard video and requires a NuBus video card
Codenames: Aurora, Cobra, Atlantic. Introduced in March 1989 and discontinued in March 1991. Originally shipped with system software 6.0.3.
- Separate instruction and data caches provide significantly faster processing.
- Built-in PMMU supports virtual, shared, and protected memory in operating systems that have been designed for it.
The 68882 performs complex mathematical calculations, such as logarithmic and trigonometric functions.
The IIcx offers three NuBus expansion slots, though one slot will need to be used for a video graphics card as the IIcx does not feature an on-board video port.
NuBus provides a multiplexed 32-bit address bus and data bus on a single 96-pin connector. NuBus is self-configuring: Cards can be plugged into any slot and the system will automatically identify and configure each card, without any DIP switches or jumper wires. The NuBus architecture supports data transfer rates of up to 37.5 megabytes per second.
Apple's custom digital sound chip provides 8-bit stereo sampling at 44.1 kilohertz, and includes four-voice wave-table synthesis. Capable of driving stereo headphones or other stereo equipment through the sound jack.
The Macintosh IIcx personal computer is designed for people who want the performance, functionality, and flexibility of the modular Macintosh product line in a system with a small footprint. Its versatile design allows it to be used in either a vertical or horizontal orientation - which means the Macintosh IIcx can be placed upright next to a monitor, underneath it, or on a shelf or other support nearby.
In terms of performance, the advanced 68030 microprocessor used in the Macintosh IIcx offers high-speed program execution. And to accelerate the processing of complex math functions, the Macintosh IIcx comes standard with a 68882 coprocessor. To meet the growing demands of the advanced Macintosh applications available today, the memory of the Macintosh IIcx can be expanded incrementally to 8 megabytes of RAM. And virtually any type of Macintosh IIcx configuration can be created, because the system includes three internal NuBus expansion slots to add cards (such as additional network interfaces), as well as seven external ports to accommodate peripherals (such as hard disks and printers) and LocalTalk network connections.
The Macintosh IIcx also offers advanced color and gray-scale graphics capabilities, and can be used with a range of monitors. For floppy disk storage, the Macintosh Ilcx uses the unique 1.4-megabyte Apple FDHD SuperDrive, which allows it to read from and write to not only 3.5-inch Macintosh floppy disks, but also the 3.5-inch disks used in many other types of personal computers. An internal hard disk can also be installed, and a second floppy disk drive can be connected externally. The Macintosh IIcx is compatible with virtually all Macintosh applications, and comes standard with Apple's MultiFinder operating system and HyperCard, a tool for custom software solutions.
- https://cdn.preterhuman.net/texts/computing/Apple_Service_PDF/68k_Macintosh/quadra_700.mac_iicx.iici.pdf - Apple Service PDF
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