---
title: "Music Synthesizer and I/O Port"
id: 12892
type: "product"
slug: "i-o-port-and-music-synthsizer"
url: "http://localhost/product/i-o-port-and-music-synthsizer/"
markdown_url: "http://localhost/product/i-o-port-and-music-synthsizer.md"
published_at: "2019-11-30T01:25:37+00:00"
modified_at: "2026-03-22T13:19:59+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Three independently programmable voices and noise generator (AY-3-8910). I/O is arranged as two 8-bit bidirectional ports."
category:
  - name: "Sound/Speech"
    slug: "sound-speech"
    taxonomy: "category"
    url: "http://localhost/category/hardware/sound-speech/"
post_tag:
  - name: "Audio Vision"
    slug: "audio-vision"
    taxonomy: "post_tag"
    url: "http://localhost/tag/audio-vision/"
  - name: "Sinclair Place"
    slug: "sinclair-place"
    taxonomy: "post_tag"
    url: "http://localhost/tag/sinclair-place/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - name: "William Stewart Systems"
    slug: "william-stewart-systems"
    taxonomy: "post_tag"
    url: "http://localhost/tag/william-stewart-systems/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "Sound"
    slug: "sound"
    taxonomy: "genre"
    url: "http://localhost/type/sound/"
company:
  id: 11448
  title: "William Stuart Systems"
  type: "company"
  url: "http://localhost/company/william-stuart-systems/"
price: 68
date: 1983
rarity: "Uncommon"
articles:
  - article:
      id: 24413
      title: "Using Your Computer: Programs"
      type: "article"
      url: "http://localhost/article/using-your-computer-programs/"
adverts:
  - publication:
      - id: 26647
        title: "SYNC v3 n1"
        type: "issue"
        url: "http://localhost/issue/sync-v3-n1/"
    advert_page: "66"
companies_products:
  - id: 10662
    title: "Audio Vision"
    type: "company"
    url: "http://localhost/company/audio-vision/"
  - id: 11448
    title: "William Stuart Systems"
    type: "company"
    url: "http://localhost/company/william-stuart-systems/"
---

# Music Synthesizer and I/O Port

Three independently programmable voices and noise generator ([AY-3-8910](https://en.wikipedia.org/wiki/General_Instrument_AY-3-8910)). I/O is arranged as two 8-bit bidirectional ports.