since 2004 latest update 06012026
Apple III
introduced: Nov 1980
Terminated: Mar 1985
Processor
CPU: MOS 6502
CPU Speed: 2 MHz
FPU: none
Bus Speed: 2 MHz
Register Width: 8-bit
Data Bus Width: 8-bit
Address Bus Width: 16-bit
ROM: 4 kB
Onboard RAM: 128 kB
RAM slots: expansion via 1st slot
Maximum RAM: 512k
Expansion Slots: 4
Video
Max Resolution: 80x24
Storage
Floppy Drive
Apple III
The apple III was intended as the successor to the apple II series, but proved to be a failure. The system was announced in early 1980 and launched in late 1980. Serious stability problems forced a recall of the first 14,000 apple IIIs produced. While the apple II included several important business products such as visicalc, multiplan, and apple writer, its hardware architecture, operating system, and developer environment were limited. The apple III addressed these weaknesses. The original apple III were replaced in 1983 by a completely redesigned model. This newer version included a built-in clock, video interlacing, standardized rear-panel connectors, 256 KB of RAM as standard, and a redesigned keyboard. Owners of the earlier apple III could obtain the newer logic board as a service replacement.