It would not be diskless only floppy less. IF you really want to enjoy the vintage experience you can include a floppy controller but be warned...They are a PAIN to use and program. The most important detail is the unless you include DMA (more parts) the cpu does all the heavy lifiting in real time and that requires tight code or some hardware tricks (more parts). It stops getting simple real fast. Then there are the various floppies with their interface quirks. IDE and CF have simple interfaces, they do not have to be written or read in real time, they are obtailable. FYI reading and writing in real time for a 5.25" DD floppy (seriously anything less than 360K is useless) requires the CPU to fetch/put a byte every 16uS without delay and in somecase the worst case timing for that is 14us. Write a simple routine in Z80 at 4mhz that does that, reliabily. Forget using 1.44MB floppies as doing that in under 8uS is out of the question without a 8mhz Z80, fast ram to support it, fast Eprom and all the other nice things that go with faster. FYI: at 4ux a CPU cycle is .25uS and the shortest instruction is nop at 4 cycles (no wait states) or 1us and a DJNZ is around 7/10 cycles or 1.75uS to 2.5uS... the timing picture is tight. Also there is the problem of getting some FDCs like the 1770,2793 and other more highly integrated chips that aren't 44 pin QFP. How many more parts do you think you need for that? ;) having built my first Altair in january 1975 and prior to that for work an 8008 when it was new.. what me vintage? Allison