Macintosh 128K (Apple)


The Macintosh 128K machine was the original Apple Macintosh personal computer. Its beige case contained a 9 in (23 cm) monitor and came with a keyboard and mouse. An indentation in the top of the case made it easier for the computer to be lifted and carried. It had a selling price of US$2,495. The Macintosh was introduced by the now famous US$1.5 million television commercial by Ridley Scott, "1984", that most notably aired on CBS during the third quarter of Super Bowl XVIII on January 22, 1984. The sales of the Macintosh were strong from its initial release and reached 70,000 on May 3, 1984;[6] afterwards, sales plummeted. After its successor, the Macintosh 512K, was introduced, it was rebadged as the Macintosh 128K.
The Macintosh was designed to achieve adequate graphics performance, which had previously required hardware costing over $10,000 US, at a price accessible to the middle class. This narrow goal resulted in an efficient design which traded off expandability but met or exceeded the baseline performance of its competitors.
The centerpiece of the machine was an 8 MHz Motorola 68000 microprocessor connected to a 128 KB DRAM by a 16-bit data bus. Lack of RAM proved to be a fatal constraint to much multimedia software, and although this baseline was similar to its competitors, it could not be upgraded. A 64 KB ROM chip boosted the effective memory to 192 KB, but this is offset by the display's 22 KB framebuffer, which is shared with the DMA video controller.

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