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The Power Macintosh 7500 is a
personal computer A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or te ...
designed, manufactured and sold by
Apple Computer Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company ...
from August 1995 to May 1996. The 7500 was introduced alongside the Power Macintosh 7200 and 8500 at the 1995 MacWorld Expo in Boston. Apple referred to these machines collectively as the "Power Surge" line, communicating that these machines offered a significant speed improvement over its predecessors. The 7500 introduced a new case design, later dubbed "
Outrigger An outrigger is a projecting structure on a boat, with specific meaning depending on types of vessel. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a crane that lifts ...
" by Mac enthusiasts. There were two derivative models: the Power Macintosh 7600, identical to the 7500 except for the
CPU A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, a ...
which was a PowerPC 604 or
604e The PowerPC 600 family was the first family of PowerPC processors built. They were designed at the Somerset facility in Austin, Texas, jointly funded and staffed by engineers from IBM and Motorola as a part of the AIM alliance. Somerset was opened ...
processor instead of the 7500's
601 __NOTOC__ Year 601 ( DCI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 601 for this year has been used since the early medieval period, when the Anno Domini calendar era bec ...
; and the
Power Macintosh 7300 The Power Macintosh 7300 (also sold with server software as the Apple Workgroup Server 7350) is a personal computer designed, manufactured and sold by Apple Computer from February 1997 to November 1997. It was introduced with 166, 180 and 200&n ...
, identical to the 7600 but without the video inputs found in both the 7500 and 7600.


Hardware

The 7500 is one of the first PCI-capable Macs manufactured by Apple;
NuBus NuBus (pron. 'New Bus') is a 32-bit parallel computer bus, originally developed at MIT and standardized in 1987 as a part of the NuMachine workstation project. The first complete implementation of the NuBus was done by Western Digital fo ...
expansion cards are not supported. It has a PowerPC 601 processor rated at 100 MHz that is replaceable via a daughtercard. It also includes full
composite video Composite video is an analog video signal format that carries standard-definition video (typically at 525 lines or 625 lines) as a single channel. Video information is encoded on one channel, unlike the higher-quality S-Video (two channe ...
and
s-video S-Video (also known as separate video, Y/C, and erroneously Super-Video ) is an analog video signal format that carries standard-definition video, typically at 525 lines or 625 lines. It encodes video luma and chrominance on two separate chann ...
input capability, but no output, as the 7500 was designed to be a video conferencing system, not a multimedia editing machine—this was the 8500's task. The main bus runs at 45 MHz or 50 MHz (set by the CPU daughtercard), and the CPU at integer or half-integer multiples of this speed. The bus can be temperamental with sensitivity to different kinds of RAM or of L2 cache, which could cause problems with aftermarket CPU cards trying to increase the clock speed.


Models

In addition to the standard matrix of configurations available from Apple, various third-party resellers offered a wide variety of configurations. * Power Macintosh 7500/100: 8 or 16 MB RAM, 512 MB or 1 GB HDD, AppleCD 600i 4x CD-ROM drive.


Timeline


References

{{Apple hardware before 1998 7500 7500 Macintosh desktops Computer-related introductions in 1995 it:Power Macintosh 7500