== Related hardware modifications ==
* [http://cpcwiki.eu/forum/index.php/topic,662.msg7113.html#msg7113 Bank exchange toggle Swapper by Khany/Cherry-T] (less complex: bank-exchanging toggle, no memory expansion; 1993)
* [[CPC4MB| CPC4MB memory upgrade by Yarek]] (more advanced; 2005/2006)