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DISCUSSION Microprocessor -------------- * Motorola 68040, 32-bit architecture, 25 Mhz clock speed * Integrated floating-point unit (FPU) * Paged Memory Management Unit (PMMU) * 8 KB Cache Digital signal processor (DSP) ------------------------------ * AT&T 3210 running at 55 Mhz * Used for sound, speech recognition, telecommunications, and other real-time processing tasks. Memory ------ * 8 MB of RAM standard: 4 MB of RAM soldered onto the logic board, and one 4 MB SIMM installed in one of memory expansion slots. * Two memory expansion slots for 70ns 72-pin SIMMs. Supported SIMM sizes are 4, 8, 16, and 32 MB. * Expandable to 68 MB of RAM by using 32 MB SIMMs in both SIMM slots. (Note: Dealer Installation Required) * 256 bytes of non-volatile parameter memory (PRAM) * 2 MB ROM (Two 512k by 16 chips) Disk Drives ----------- * One Built-in Apple SuperDrive 1.4 MB floppy disk drive that uses high-density floppy disks and reads, writes, and formats Macintosh, MS-DOS, OS/2, and ProDOS disks. * Support for two internal SCSI devices, one of which may be used for removable media, such as an internal CD-ROM drive. * One internal hard disk (80 MB, 230 MB, 500 MB options available) * Optional internal Apple CD-ROM drive (see above) * Optional external SCSI hard disk drive (many capacities available) Video Display ------------- * Supports all Apple displays up to 21 in. * Supports some other non-Apple monitors, including VGA, SVGA, NTSC, and PAL 19" monitors Video RAM --------- * 1 MB VRAM. (VRAM is non-expandable) * VRAM is shared between graphics window and video window * Maximum video window size at a color depth of 16 bits is 640 X 480 Interfaces ---------- * One internal NuBus expansion slot via NuBus adapter, which includes support for digital-audio video (DAV) connector. (Only 7 inch NuBus cards are supported.) * One Apple Desktop Bus (ADB) port, supporting a keyboard, mouse, and other devices. * AAUI-15 Ethernet connector. * Two serial (RS-232/RS-422) ports. (Printer & Modem/GeoPort) * Two S-Video ports, one each for input and output. * Two composite video ports, one each for input and output. * SCSI interface for connecting up to a total of seven SCSI devices. * Sound-out port for stereo playback from CDs or Macintosh audio applications * Stereo sound-input port (supports 16-bit stereo audio) * One monitor out port. Networking ---------- * Built-in Ethernet * Serial port for AppleTalk * Integrated GeoPort telecommunications architecture for data, fax, and voice connectivity. Sound Generator --------------- * DSP-based 16 bit stereo audio * Sample rates: 8 Khz to 48 Khz Keyboard -------- * Several Apple Desktop Bus keyboards with numeric keypads available. Mouse ----- * Apple Desktop Bus Mouse II; mechanical tracking, optical shaft, or contact encoding. Clock/Calendar -------------- * Custom integrated circuit with long-life lithium battery. Apple PlainTalk Microphone -------------------------- * The microphone is unidirectional and optimized for use with speech recognition. (Microphone bundled with all units sold in the USA, available as a separate item outside the USA.) Disability Access ----------------- * CloseView, Easy Access, and visible beep included with system software. These built-in features and third-party options provide alternative input and output tools for people with disabilities. Electrical Requirements ----------------------- * Line voltage: 100 to 240 VAC, RMS single phase, automatically configured * Frequency: 47 to 63 hertz, single phase * Power: 86 watts maximum. (Does not include monitor power.) ADB Power Requirements ---------------------- * Maximum current draw for all ADB devices: 500 milliamps (a maximum of three Apple Desktop Bus devices is recommended) * Mouse draws 10 milliamps. * Keyboard draws 25 to 80 milliamps, depending on the keyboard model used. Size and Weight --------------- Main unit * Height: 3.4 inches (8.5 cm) * Width: 16.3 inches (41.5 cm) * Depth: 15.6 inches (39.7 cm) * Weight*: 14.0 pounds (6.4 kg) *Weight varies based on internal devices installed Mouse * Height 1.3 inches (33 mm) * Width 2.4 inches (61.7 mm) * Depth 4.2 inches (107.3 mm) * Weight 4 ounces (0.10 kg) Operating Environment --------------------- * Operating temperature: 50 degrees to 104 degrees F (10 degrees to 40 degrees C) * Storage temperature: -40 degrees to 116.6 degrees F (-40 degrees to 47 degrees C) * Relative humidity: 5% to 95% noncondensing * Maximum altitude: 10,000 ft. (3,048m) System Software Requirements ---------------------------- Requires System 7.1 or later and the System Enabler 088. Article Change History: 20 January 1994 - Added Quadra 660AV name. 30 July 1993 - added correct name of System Enabler. |
| Document Information | |
| Product Area: | Computers |
| Category: | Macintosh Quadra & Centris |
| Sub Category: | Quadra 840AV; Quadra/Centris 660AV |
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