The schematic is right there in the repo so I randomly googled some of the part numbers: LS125 - 3-state bus buffers - https://www.ti.com/lit/ds/symlink/sn54ls

The schematic is right there in the repo so I randomly googled some of the part numbers: LS125 - 3-state bus buffers - https://www.ti.com/lit/ds/symlink/sn54ls125a.pdf?ts=1731481090480 https://www.ti.com/lit/ds/symlink/sn54ls125a.pdf?ts=17314810... LS612 - Memory mappers - https://media.digikey.com/pdf/Data%20Sheets/Rochester%20PDFs/SN54LSS61x_SN74LS61x.pdf https://media.digikey.com/pdf/Data%20Sheets/Rochester%20PDFs... 8259 - Interrupt controller - https://en.wikipedia.org/wiki/Intel_8259 https://en.wikipedia.org/wiki/Intel_8259 27C256 - ROM - https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/11001N.pdf https://ww1.microchip.com/downloads/aemDocuments/documents/O... Most of it is somewhat more high-level than the 7400-series ICs and such you might find in something older like the early 6502-based microcomputer motherboards.