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                QUADRA 650: Product Description
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Overview
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Based on the fast 33-megahertz Motorola 68040 processor, the Quadra
650 provides affordable high performance. It comes with 8MB RAM and an
integral math coprocessor. For increased performance, you can expand
memory to up to 136MB.
 
For performance and convenience, the Macintosh Quadra 650 works with
all Apple displays. The standard Macintosh Quadra 650 can display 256
crisp colors on the Macintosh 16-inch Color Display. When you want to
work with photographic-quality images, a simple video upgrade lets you
show 32,768 colors.
 
You can use the Quadra 650's expandability to set up a system that
meets your exact needs, as well as to increase your computing power as
your needs grow. Customize your system by adding NuBus expansion cards
in the three expansion slots provided. It even provides high-speed
Ethernet support on-board.
 
The Quadra 650 comes standard with an internal hard drive. Its
high-speed SCSI interface lets you add high-volume storage devices,
such as the AppleCD 300i internal CD-ROM drive, so you can run
hundreds of CD-ROM titles.
 
Features
--------
> 33-MHz 68040 processor with integral math coprocessor
> 8MB RAM, expandable to 136MB
> 512K VRAM, expandable to 1MB
> Works with all Apple and many third-party displays
> With 512K VRAM upgrade, supports 16-bit color, allowing for display
  of thousands of colors
 
Expansion
---------
> Eight built-in ports to support a wide range of peripherals
> Three NuBus slots for expansion cards
> Optional internal CD-ROM drive
> One inline 68040 processor-direct slot
> On-board Ethernet (AAUI)
 
Compatibility & Networking
--------------------------
> Runs thousands of Macintosh applications
> Reads Macintosh, Windows, MS-DOS, OS/2, and ProDOS floppy disk
  formats
> Built-in AppleTalk networking
> File sharing without a dedicated server

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Technical Specifications:
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Microprocessor
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> MC68040, running at 33 MHz
> Integrated 25-MHz math coprocessor (FPU)
> Integral Paged Memory Management Unit (PMMU), and 8K-cache
  architecture
 
Memory
------
> Comes with 8MB of RAM on the logic board
> Expandable to 136MB of RAM by adding SIMMs to four 72-pin slots.
  (Doesn't support 1MB, 2MB, or 64MB 72-pin SIMMs.)
> Includes RAM disk software
> 1MB ROM
> DRAM must be 80 ns or faster.
 
Disk Drives
-----------
> One built-in Apple SuperDrive 1.4MB floppy disk drive
> One internal 230MB or 500MB hard disk drive
> Accommodates  one 5.25-in., half-height device, such as the AppleCD
  300i internal CD-ROM drive
 
Video Display
-------------
> Supports all Apple displays
> Works with a wide range of third-party displays including some
  19-in., VGA, SVGA, NTSC, and PAL monitors
 
Video RAM (VRAM)
----------------
VRAM must be 80 ns or faster.
512K standard supports:
> 32,768 colors on the Macintosh 12-inch RGB Display
> 256 colors on the AppleColor High-Resolution RGB Display (13"),
  Macintosh Color Display (14"), and Macintosh 16-inch Color Display
> 256 shades of gray on the Macintosh 12-inch Monochrome Display
> 16 shades of gray on the Macintosh Portrait Display (15")
> 16 colors on the Macintosh 21-inch Color Display
 
1MB option supports:
> 32,768 colors on the Macintosh 12-inch RGB Display,
  AppleColor High-Resolution RGB Display (13"), Macintosh Color
  Display (14"), and Macintosh 16-inch Color Display
> 256 shades of gray on the Macintosh 12-inch Monochrome Display and
  Macintosh Portrait Display (15")
> 256 colors on the Macintosh 21-inch Color Display
 
System Software
---------------
Macintosh System software 7.1 with System Enabler 040 ver. 1.1
 
Interfaces
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> Three internal NuBus expansion slots
> One 68040 processor-direct slot
> SCSI interface for connecting up to six external devices
> AAUI-15 Ethernet connector (Ethernet itself is built in)
> Two serial (RS-232/RS-422) ports
> One video port for color and monochrome displays of various sizes
  and resolutions
> One sound-output port for stereo playback from CDs and stereo
  playback
  of Macintosh sound
> One monaural sound-input port
> Two Apple Desktop Bus (ADB) ports for a keyboard, mouse, and other
  devices
 
Sound generator
---------------
> Custom integrated circuit that drives a stereo miniature headphone
  jack (22 kHz sample rate)
 
Keyboard and mouse
------------------
> Works with several ADB keyboards
> Apple Desktop Bus Mouse II
 
Clock/Calendar
--------------
> Custom integrated circuit with long-life lithium battery
  
Power Requirements
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> Line voltage: 100 to 240 V AC, RMS, automatically configured
> Frequency: 50 to 60 Hz
> Power: 325 W maximum, not including display power
 
ADB power requirements
----------------------
> Maximum current draw for all ADB devices: 500 mA (three ADB devices
  maximum recommended)
> Mouse draws 10 mA
> Keyboard draws 25 to 80 mA, depending on the model used
 
Size and weight
---------------
Main unit:
> Height: 6.0 in. (15.2 cm)
> Width: 13.0 in. (33.0 cm)
> Depth: 16.5 in. (41.9 cm)
> Weight: 25 lb. (11.3 kg) Varies depending on internal devices 
  installed.
 
Mouse:
> Height: 1.3 in. (3.3 cm)
> Width: 2.4 in. (6.2 cm)
> Depth: 4.2 in. (10.7 cm)
> Weight: 4.0 oz. (0.10 kg)
 
Operating environment
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