Google is your friend - for some of them anyway...
The AY-3-1015D is a UART
The Tandy chip is a PAL - probably programmed for some Tandy product.
The 7494 is a standard TTL 4 bit shift register
The one with 150 Ohm on it is almost certainly a resistor pack
The 930 and 960 are DTL (diode-transistor) Logic chips
P.S. Welcome to the forum.
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