Programable electric bulletin board using relays.
(YEAH)
1010111001001010→11312011
1010100010101010→11101111
0100110011101110→20303131
0100100010101010→20101111
0100111010101010→20311111
5 x 16 information can be displayed on a 5 x 3 display.
The cost of the decoder is greatly reduced by using a unique quaternary input ROM.
Seems like the process is too heavy and slowing down the operation, lol.