TITLE
    Macintosh Quadra 950: Specifications
Article ID:
Created:
Modified: 		10216
5/15/92
5/15/92
TOPIC



    This article gives the technical specifications for the Macintosh Quadra
    950 computer.

DISCUSSION


    Microprocessor
    --------------
    - Motorola 68040, 32-bit architecture, 33 MHz clock speed

    - Integral Paged Memory Management Unit (PMMU), Floating Point Unit (FPU),
    and 8-kilobyte cache architecture

    I/O Speed
    ---------
    - 25 MHz

    Memory
    ------
    - Comes with 8MB of RAM standard and eight memory expansion slots for 80ns
    SIMMs (Single In-line Memory Modules).

    - Expandable to 64MB of RAM by installing 4MB SIMMs in all 16 slots.

    Disk Drives
    -----------
    - Built-in Apple SuperDrive 1.4MB floppy disk drive

    - 230MB or 400MB internal Apple SCSI hard disk drive (optional)

    - Support for four internal SCSI devices, such as a CD-ROM or DAT drive,
    or SCSI hard disk drive (several capacities available)

    Video Display
    -------------
    - Up to 16 bpp video support for most Apple monitors standard (15-inch
    portrait and 21-inch landscape require 2MB VRAM)

    - Supports all Apple monochrome and color monitors, including:
    - Macintosh 12-inch RGB Display
    - Macintosh 12-inch Monochrome Display
    - AppleColor High-Resolution RGB Monitor
    - Macintosh Portrait Display
    - Macintosh Two-Page Monochrome Monitor
    - Macintosh 21-inch Color Display

    - Supports some other non-Apple monitors, including VGA, NTSC, and PAL.

    - 24 bpp video support on 12-inch (1MB VRAM), 13-inch, NTSC, PAL, 16-inch
    with 2MB VRAM.

    Video RAM
    ---------
    - 1MB, upgradable to 2MB for display of more colors or shades of gray

    Interfaces
    ----------
    - One Apple Desktop Bus (ADB) port, supporting a keyboard, mouse, and other
    devices daisy-chained through a synchronous serial bus

    - Two serial (RS-232/RS-422) ports, 230.4 kilobits per second maximum (up
    to 0.920 megabits per second if clocked externally)

    - SCSI bus interface

    - Video port to support RGB and monochrome monitors of various sizes and
    resolutions

    - Five internal NuBus expansion slots

    - One 68040 PDS (processor-direct slot) provides access to the CPU for
    highest possible performance.

    - Stereo sound output port capable of delivering sound to both channels of
    a stereo device

    - Sound input port for monaural sound input

    - Two audio line input ports (stereo input is mixed to a monophonic
    signal)

    - AUI-15 Ethernet connector

    Keyboard
    --------
    - Supports all ADB (Apple Desktop Bus) keyboards.

    Mouse
    -----
    - Apple Desktop Bus Mouse; mechanical tracking, optical shaft, or contact
    encoding

    Sound Generator
    ---------------
    - Custom sound chip drives stereo miniature phone jack headphones or stereo
    equipment.

    Clock/Calendar
    --------------
    - Custom chip with long-life lithium battery

    Microphone
    ----------
    - Electret, omnidirectional; output voltage is 4 millivolts, peak-to-peak,
    at normal volume.

    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 volts AC, RMS automatically configured

    - Frequency: 59 to 60 Hz, single phase

    - Power: 303 watts maximum, not including monitor power

    ADB Power Requirements
    ----------------------
    - Maximum current draw for all ADB devices: 500 milliamps (a maximum of
    three ADB devices is recommended)

    - Mouse draws 80 milliamps.

    - Keyboard draws 25 to 80 milliamps, depending on the keyboard model used.

    Operating Environment
    ---------------------
    - Operating temperature: 50 F to 104 F (10 C to 40 C)

    - Storage temperature: -40 F to 116.6 F (-40 C to 47 C)

    - Relative humidity: 20% to 80% noncondensing

    - Maximum altitude: 10,000 ft. (3,048m)

    Size and Weight
    ---------------
    - Main unit
    - Height 18.6 inches (47.3 cm)
    - Width 8.9 inches (22.4 cm)
    - Depth 20.6 inches (52.3 cm)
    - Weight 36 lb. 12 oz. (16.7 kg)*

    - Mouse
    - Height 1.1 inches (2.8 cm)
    - Width 2.1 inches (5.3 cm)
    - Depth 3.8 inches (9.7 cm)
    - Weight 6 oz. (.17 kg)

    * Weight is greater with an internal hard disk.

    Noise Level
    -----------
    < 40 db (floor standing position) measured from the seated operator
    position.



Document Information
Product Area: Computers
Category: Macintosh Quadra & Centris
Sub Category: Quadra 950

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