If you want some tree way model to learn, you can start: 1- studying the difference types of transistor ( bipolares -> NPN, PNP; unipolares -> MOSFET, JFET). H

If you want some tree way model to learn, you can start: 1- studying the difference types of transistor ( bipolares -> NPN, PNP; unipolares -> MOSFET, JFET). How they works, how you can build logic with them. 2 - Understanding the simple ports ( or, and, not, xor), how they works, how they are build with transistors. Learn the method of Karnaugh. 3 - Learn some circuits like the differents type of flipflops, ULA, Mux, Demux, registers. Asynchronous and Synchronous system. 4 - Learn how state machine works, the Moore and Mealy models. 5 - Study the Data and Control Path of a CPU. You can do some dedicated circuits. 6 - Learn some Design hardware language like Verilog or VHDL, and implement your circuits from step 5. 7 - Learn the MIPS processor, and add some news instructions. 8 - Use your modified MIPS to build some microcontroller design, with PIC and others devices. 9 - You can keep walking from here... PS.: - From step 3 to 5 you can use a software called Logisim to build your logiv circuits . - From step 6 to 9 you can use any VHDL/Verilog IDE. some companies has good ones like Freescale and Altera.