Editing Amstrad 6128 (section)

== Hardware ==

From Amstrad's technical specification:<ref name="sm6128" />

* '''Z80A at 4&nbsp;MHz'''
* '''128&nbsp;KB of RAM arranged as two 64&nbsp;KB banks''' — over 41&nbsp;KB available to the user in BASIC, 61&nbsp;KB TPA under CP/M Plus
* '''48&nbsp;KB of ROM''' containing BASIC, the operating system and the disc extensions
* '''6845''' CRT controller; '''AY-3-8912''' three-voice, eight-octave sound generator; '''8255''' parallel I/O
* 74-key keyboard — QWERTY with a numeric cluster, cursor and copy cursor, return, enter, shift, caps lock, tab, delete, clear and control
* Three display modes: 4 colours from 27 at 320 × 200, 2 from 27 at 640 × 200, and 16 from 27 at 160 × 200
* Expansion for '''up to 252 additional 16&nbsp;KB ROMs'''
* External sockets: PCB edge connectors for general-purpose expansion and for the Centronics printer port; a second disc drive socket (DI-2 lead); a 9-pin D-type joystick socket; a 6-pin DIN for RGB and sync or luminance and sync; a 5-pin DIN for an external cassette recorder (CL1 lead); a 3.5&nbsp;mm stereo socket for sound out