Chapter 3

ZX Spectrum 128

In 1985 and ’86, Sinclair Research and Investrónica released the ZX Spectrum 128 in Spain, then (later) the UK. In addition to having more memory, the machine featured more advanced audio, an RS232 serial port, support for faster video screen switching, and a proper keyboard.

Today, the 128 KB model is a standard in the Speccy demo & homebrew scene.

Sinclair ZX Spectrum 128K

// JSSpeccy configuration
emu = JSSpeccy(
    document.getElementById('jsspeccy'),
    {
        machine: 128,
        uiEnabled: true,
        autoStart: false,
        zoom: 2,
    })

The configuration above, selects 128 KB Spectrum model (“machine: 128”), with nothing preloaded.