---
title: "ASZMIC External Card"
id: 11829
type: "product"
slug: "external-board"
url: "http://localhost/product/external-board/"
markdown_url: "http://localhost/product/external-board.md"
published_at: "2019-11-30T01:28:08+00:00"
modified_at: "2026-03-22T13:19:47+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2020/12/Comprocsys-aszmic.jpg"
excerpt: "Features socket for ASZMIC ROM, socket for additional 4K/8K EPROM or RAM, 24 programmable I/O lines (8255) and EPROM programming socket. Allows for switching between Sinclair and ASZMIC ROMs."
category:
  - name: "Interfacing"
    slug: "interfacing"
    taxonomy: "category"
    url: "http://localhost/category/hardware/interfacing/"
post_tag:
  - name: "Comprocsys Ltd"
    slug: "comprocsys-ltd"
    taxonomy: "post_tag"
    url: "http://localhost/tag/comprocsys-ltd/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
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: "Interfacing"
    slug: "interfacing"
    taxonomy: "genre"
    url: "http://localhost/type/interfacing/"
company:
  id: 10742
  title: "Comprocsys, Ltd"
  type: "company"
  url: "http://localhost/company/comprocsys-ltd/"
price: 15
date: 1983
rarity: "Uncommon"
producturl: "http://www.zx81stuff.org.uk/zx81/publisher/Comprocsys"
related_content:
  - id: 47720
    title: "ZX.ASZMIC User Manual"
    type: "document"
    url: "http://localhost/document/zx-aszmic-user-manual/"
companies_products:
  - id: 10742
    title: "Comprocsys, Ltd"
    type: "company"
    url: "http://localhost/company/comprocsys-ltd/"
---

# ASZMIC External Card

Features socket for ASZMIC ROM, socket for additional 4K/8K EPROM or RAM, 24 programmable I/O lines (8255) and EPROM programming socket. Allows for switching between Sinclair and ASZMIC ROMs.

- ![Image](http://localhost/wp-content/uploads/2020/12/Comprocsys-aszmic.jpg)
- ![Image](http://localhost/wp-content/uploads/2020/12/Comprocsys-Sync_Volume_3_Number_5-1024x473.jpg)