| ZPM3SEMI.EMS || ZPM3 by Simeon Cran || Digital Research || Amstrad v1.0 || Dk'tronics RAM drive || Patched with Dk'tronics memory expansion driver and ZPM3
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| C10ZCPR3.EMS || ZPM3 by Simeon Cran || ZCCP by Randy Winchester || Amstrad v1.0 || - || The BDOS has been replaced by ZPM3 and the CCP has been replaced by ZCCP, both written in Z80 assembly. Z-system/Z3Plus compatible. <b>Strartup and default drive must be drive A: (use HDMGR.COM to change). Also several Z-system files must be present ([https://github.com/wwarthen/CPU280/tree/master/ZCCP/zccp.txt read ZCCP.TXT]) </b>
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| ZCPR3SEM.EMS || ZPM3 by Simeon Cran || ZCCP by Randy Winchester || Amstrad v1.0 || Dk'tronics RAM drive || The BDOS has been replaced by ZPM3 and the CCP has been replaced by ZCCP, both written in Z80 assembly. Z-system/Z3Plus compatible. Patched with Dk'tronics memory expansion driver. <b>Strartup and default drive must be drive A: (use HDMGR.COM to change). Also several Z-system files must be present ([https://github.com/wwarthen/CPU280/tree/master/ZCCP/zccp.txt read ZCCP.TXT])</b>
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| D10CPM3.EMS || Digital Research || Digital Research || Amstrad v1.0 || Dobbertin RAM Drive || Patched with Dobbertin memory expansion driver