Sharp MZ-2800 Mejoras
Summary
Amongst the machines I have renovated is a Sharp MZ-2800, the dual CPU successor to the MZ-2500 or Super-MZ. The machine was a synergy of the old Z80 world and the dawning of the new 16bit
world based on the 80286, the heart of the IBM PC AT and the basis of most modern computers.
The machine kept full compatibility with the MZ-2500 by inclusion of the Z80 and all its associated hardware. It also added an 80286, the primary processor of the machine along with more memory (768KB), more Graphics RAM (512KB) and an abundance of expansion options, allowing both MZ-2500 expansion cards and new MZ-2800 16bit expansion cards to be sited in the same casing. It was, in effect, a Super Super MZ!
Unfortunately the machine gave up some of the MZ-2500 features, namely compatibility with the MZ-2000 and MZ-80B but this was a small price to pay for the power and performance on offer.
As with the MZ-2500, I decided not to pursue the tranZPUter upgrade path for this machine as there is basically no space, other than the expansion bay, to add functionality. The tranZPUter would need to be redesigned as an add in card and may not be able to provide all the same features it provides to an MZ-80A/MZ-700/MZ-2000. I thus stuck with renovating it and discovering the wonders it provided.
The machine kept full compatibility with the MZ-2500 by inclusion of the Z80 and all its associated hardware. It also added an 80286, the primary processor of the machine along with more memory (768KB), more Graphics RAM (512KB) and an abundance of expansion options, allowing both MZ-2500 expansion cards and new MZ-2800 16bit expansion cards to be sited in the same casing. It was, in effect, a Super Super MZ!
Unfortunately the machine gave up some of the MZ-2500 features, namely compatibility with the MZ-2000 and MZ-80B but this was a small price to pay for the power and performance on offer.
As with the MZ-2500, I decided not to pursue the tranZPUter upgrade path for this machine as there is basically no space, other than the expansion bay, to add functionality. The tranZPUter would need to be redesigned as an add in card and may not be able to provide all the same features it provides to an MZ-80A/MZ-700/MZ-2000. I thus stuck with renovating it and discovering the wonders it provided.
Renovation Begins
The photos below are taken from the actual machine during rebuild and are adhoc at the moment. They will in time be formed into a comprehensive guide, please bear with me.
Agradecimientos
Donde he utilizado o basado cualquier componente en el diseno de un tercero, he incluido el aviso de copyright del autor original en los encabezados o dado el credito correspondiente. Todo el software de terceros, segun mi conocimiento e investigacion, es de codigo abierto y de libre uso. Si se descubre que algun componente tiene restricciones de licencia, sera eliminado de este repositorio y se proporcionara un enlace/configuracion adecuada.
Licencias
Este diseno, hardware y software, esta licenciado bajo la GNU Public Licence v3.
La Licencia Publica General GNU v3
Los archivos fuente y binarios en este proyecto marcados como GPL v3 son software libre: puede redistribuirlos y/o modificarlos bajo los terminos de la Licencia Publica General GNU publicada por la Free Software Foundation, ya sea la version 3 de la Licencia, o (a su eleccion) cualquier version posterior.
Los archivos fuente se distribuyen con la esperanza de que sean utiles, pero SIN NINGUNA GARANTIA; sin siquiera la garantia implicita de COMERCIABILIDAD o IDONEIDAD PARA UN PROPOSITO PARTICULAR. Vea la Licencia Publica General GNU para mas detalles.
Deberia haber recibido una copia de la Licencia Publica General GNU junto con este programa. Si no, vea http://www.gnu.org/licenses/.
Los archivos fuente se distribuyen con la esperanza de que sean utiles, pero SIN NINGUNA GARANTIA; sin siquiera la garantia implicita de COMERCIABILIDAD o IDONEIDAD PARA UN PROPOSITO PARTICULAR. Vea la Licencia Publica General GNU para mas detalles.
Deberia haber recibido una copia de la Licencia Publica General GNU junto con este programa. Si no, vea http://www.gnu.org/licenses/.