Super Basic copy from Nyfors Data Science Super Basci

This board also added a dos eprom and some dip switch to turn on and off super basic and dos, but also select bank of the dos eprom. So you can flash the eprom with both ABC-Dos and UFD-Dos with in the same eprom.

74LS42 is a BCD->Decimal decoder used for address glueing in 2k steps.

Bom<br>
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2pcs 100nF disc capacitor, TH<br>
4pcs 2.2kohm resistor, TH<br>
8pcs 1N4148 diode, TH<br>
1pcs IC-Socket 14pin, TH<br>
2pcs IC-Socket 28pin, TH (if you dont will use DOS then its one pcs)<br>
1pcs 74LS42, TH<br>
2pcs 27C64, TH<br>
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For connector please decide angle and mounting option.<br>
Normal connector can be order here<br>
DIN 41612 connectors<br>
https://www.aliexpress.com/item/4000215552439.html?spm=a2g0s.9042311.0.0.595d4c4dohyGUy<br>
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Eprom can be ordered from here<br>
https://www.aliexpress.com/item/32967722269.html?spm=a2g0o.productlist.0.0.3452107a80fP0Z&algo_pvid=f23b93d1-85eb-4d74-8fb3-5dfbfabf04ad&algo_exp_id=f23b93d1-85eb-4d74-8fb3-5dfbfabf04ad-2<br>
Memory allocation <br>
16384 0x4000 - 22528 0x5800 Freerom / Super Basic<br>
24576 0x6000 - 28671 0x6FFF DOS / DOS<br>
28672 0x7000 - 30719 0x77FF IEC / IEC<br>