ZX Spectrum+ 128K | Mister Spectrum
... when the machine was being used in its new 128K environment. Hardware At the heart of the ZX Spectrum+ 128K was a <strong>Zilog</strong> Z80A processor running at approximately 3.55 MHz. The processor was essentially the same as that used in earlier Spectrums, but the surrounding hardware was considerably expanded. The machine contained 128K of ...