Upgradable Microprocessor
-------------------------
* PowerPC 604 microprocessor running at 120 MHz, upgradable to 250 MHz
processor when available
* Integrated floating-point unit, 32K cache, and three integer units
* High-speed system bus (up to 50 MHz)
Memory
------
* RAM: 16 MB of RAM, expandable to 512 MB via 8 DIMM sockets
(Note: There is no RAM soldered to the logic board. The DIMM sizes installed
at the factory will vary according to availability; there will be either two
8 MB DIMMs or one 16 MB DIMM. If you are installing more RAM, the DIMMs
should be 64-bit-wide, 168-pin fast-paged mode, with 70-ns RAM access times
or faster.)
* Standard Level 2 (L2) Cache: 256K L2 cache on a 160-pin DIMM
(Theoretical support for up to 4 MB of L2 cache.)
* VRAM: DIMMs must be 32-bit-wide, 112-pin fast-paged mode with 70ns RAM access
time or faster. Do not use the 256 K or 512 K VRAM SIMMs used in older
Macintosh computers
* 4 MB of ROM
Disk Drives
-----------
* Internal 1 GB or 2 GB Fast SCSI hard disk
* Internal Apple SuperDrive floppy disk drive
- Accepts high-density 1.4 MB disks and 800K disks
- Reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2,
and ProDOS disks
* Internal AppleCD 600i quadruple-speed CD-ROM drive
* Expansion bay for additional 3.5-inch hard disk
Interfaces
----------
* Three PCI expansion slots compatible with PCI 2.0-compliant cards
(Note: These slots are not NuBus-compatible)
* Two high-speed DMA serial (RS-232/RS-422) ports compatible with LocalTalk
and GeoPort cables
* 10Base-T and AAUI-15 Ethernet connectors
* Internal Fast SCSI bus (up to 10 MB/s)
* External SCSI bus (up to 5 MB/s)
* Apple Desktop Bus (ADB) expansion port
* RCA phono jacks for line-level stereo audio input and output
* Mini jacks for stereo audio input and output
* All sound ports support 16-bit audio and up to 44.1-kHz sampling rate
* DB-15 connector for monitor
* Composite connectors (RCA phono jacks) for composite video input and output
* S-video input and output connectors
* Internal digital audio/video (DAV) connector for video
compression/decompression cards
Audio System
------------
* Custom sound circuitry, including stereo generator (digital-to-analog
converter, or DAC)-capable of driving stereo miniplug headphones or audio
equipment-and stereo sampling hardware (analog-to-digital converter, or
ADC) for recording stereo sound
* 16-bit stereo input and output
* Sample rates of 44.1 and 22.05 kilohertz (kHz)
* Sound input connector line level: 2.8 volts peak-to-peak (Vpp) nominal,
into 3.0-kilohm (k¢) impedance (minimum)
* RCA-type input connector line level: 2.4 Vpp nominal, into 13.5-k¢
impedance (minimum)
* Sound output connector line level: 2.7 Vpp nominal, into 32-k¢ impedance
* RCA-type output connector level: 2.9 Vpp nominal into 2-k¢ impedance
(minimum)
* Sound input signal-to-noise ratio (SNR): >83 decibels (dB) A-weighted
with no audible discrete tones
* RCA-type input SNR: >77 dB A-weighted with no audible discrete tones
* Sound output SNR: >84 dB A-weighted with no audible discrete tones
* RCA-type output SNR: >84 dB A-weighted with no audible discrete tones
* Bandwidth: 10 Hz to 18 kHz (+0.1 dB, -3.0 dB) at 44.1-kHz sample rate
* RCA-type input total harmonic distortion plus noise (THD + N): less than
0.018 percent A-weighted; measured 10 Hz to 30 kHz with a 2.4-Vpp sine
wave input
Video Input/Output Subsystem
----------------------------
* 24-bit video input
- Real-time video playthrough of up to 640 by 480 pixels with NTSC;
768 by 576 pixels with PAL and SECAM
- Up to 320- by 240-pixel capture at 25 frames per second with
NTSC (with 2 GB drive)
- Maximum capture size of 640 by 480 pixels with NTSC
* 24-bit video output
- Support for NTSC and PAL
- Convolution for flicker reduction at all bit depths
Graphics Support
----------------
* 2 MB of VRAM, expandable to 4 MB
* Fast 64-bit data path to VRAM
* Support for display resolutions of up to 1,280 by 1,024 pixels
* 24-bit color up to 1,152- by 870-pixel resolution
* Refresh rate of up to 75 Hz
GeoPort Telephony*
------------------
* 14.4-Kbit/s modem support
* V.17 fax support
* GeoPort Fax and GeoPort Telephony software included
* Speakerphone and answering-machine capability
* Note: Requires GeoPort Telecom Adapter
Clock/Calendar
--------------
* Custom integrated circuit with long-life battery
Keyboard And Mouse
------------------
* Supports ADB keyboards with numeric keypads
* Comes with an ADB Mouse II
Electrical Requirements And Compliance
--------------------------------------
* Line voltage: 100 to 240 V AC, RMS single phase, automatically configured
* Frequency: 50 to 60 Hz, single phase
* Power: 225 W maximum, not including display
ADB Power Requirements
----------------------
* Maximum current draw for all devices: 500 mA
(a maximum of three ADB devices is recommended)
* Mouse draws 10 mA
* Keyboard draws 25 to 80 mA (varies with keyboard used)
Size And Weight
---------------
* Height: 14 in. (35.6 cm)
* Width: 7.7 in. (19.6 cm)
* Depth: 15.75 in. (40.0 cm)
* Weight: 25 lb. (11.3 kg)
Operating Environment
---------------------
* Operating temperature: 50 degrees to 104 degrees F
(10 degrees to 40 degrees C)
* Storage temperature: -40 degrees to 116 degrees F
(-40 degrees to 47 degrees C)
* Relative humidity: 5% to 95% noncondensing
* Maximum altitude: 10,000 ft. (3,048 m)
Article Change History:
18 Sep 1996 - Updated speed of processor card support.
17 Sep 1996 - Clarified energy information.
12 Jul 1996 - Modified title.