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The Macintosh Classic II (also sold as the Performa 200) is a personal computer designed and manufactured by Apple Computer, Inc. from October 1991 to September 1993. The system has a compact, appliance design with an integrated 9" monitor, typical of the earliest of the Macintosh range.
The RAM limit in the Macintosh design was 4 MB of RAM and 4 MB of ROM with the remaining 8 MB addresses split between the SCC, IWM and VIA chips, because of the structure of the memory map. [ 9 ] [ 10 ] This was fixed by changing the memory map with the Macintosh II , allowing up to 8 MB of RAM, by shrinking ROM and I/O addresses to 1 MB each ...
It is the earliest Macintosh model that can be used as an AppleShare server and, with a bridge Mac, communicate with modern devices. [3] The Mac 512K originally shipped with Macintosh System 1.1 but was able to run all versions of Mac OS up to System 4.1. It was replaced by the Macintosh 512Ke and the Macintosh Plus. All support for the Mac ...
Memory: The standard memory was 1 megabyte, expandable to 8 MB. [26] The Mac II had eight 30-pin SIMMs, and memory was installed in groups of four (called "Bank A" and "Bank B"). The original Macintosh II did not have a PMMU by default. It relied on the memory controller hardware to map the installed memory into a contiguous address space. This ...
Protected memory was only added to Macintosh computers with the release of the Mac OS X operating system. According to Andy Hertzfeld, the Macintosh used for the introduction demo on January 24, 1984, was a prototype with 512k RAM, even though the first model offered for sale implemented just 128k of non-expandable memory. This prototype was ...
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However, if the internal circuit board (which consisted of its own CPU, IWM chip, RAM and firmware) was bypassed it could operate on a Macintosh as an 800-kilobyte drive. [4] This permitted storage-hungry Mac users the ability to double their disk capacity 5 months before Apple officially made an 800-kilobyte drive available for the Mac.
The Apple IIc was released on April 24, 1984, during an Apple-held event called Apple II Forever.With that motto, Apple proclaimed the new machine was proof of the company's long-term commitment to the Apple II and its users, despite the recent introduction of the Macintosh.