Changes
PC
,/* Links */
[http://www.retroarchive.org/dos/docs/ibm5160techref.pdf IBM PC XT Hardware Technical Reference]
[https://bitsavers.org/pdf/ibm/pc/at/1502494_PC_AT_Technical_Reference_Mar84.pdf IBM PC AT Hardware Technical Reference]
[http://en.wikipedia.org/wiki/PC1512 About the Amstrad PC1512]
