Peter Jakubčo
Peter Jakubčo
https://deramp.com/downloads/mfe_archive/005-Documentation%20and%20Code%20by%20Martin/020%20Documentation%20by%20Martin/0050-Altair%20Documentation/Loading%20Basic%20with%20the%2088-PIO%20Board.pdf
http://www.virtualaltair.com/virtualaltair.com/vac_88-HDSK.asp
Paper Tape Reader is also known as 88-HSR (High-Speed Reader)
http://www.virtualaltair.com/virtualaltair.com/vac_88-HSR.asp
Other option is OP-80A (https://deramp.com/swtpc.com/OAE80_Reader/OAE_80A_Manual.pdf)
https://pasmo.speccy.org/pasmodoc.html - include binary
TAP and TZX files are meant to be loaded by ZX spectrum machines through audio line which, when timing is correct, temporarily sets/clear EAR bit in ULA. While the TAP/TZX...
http://www.virtualaltair.com/virtualaltair.com/vac_88-MDS_88-MDDR.asp