Yep! your right mate but we are not going to build a microcontroller, we have to understand it first and then we proceed to SAP 2.
I found a book that have the schematics for SAP 1 in our library but the problem is the schematics of program counter, Input and MAR, 16x8 RAM, Instruction Register, Controller/Sequencer, Accumulator, Adder/Subtractor, B Register, Output register, Binary Display power supply are on separate pages and they are quite confusing coz of many wires and components. I need a schematic that has all the components connected together.