MOSFETs is simpler and more efficient logic design and switching theory pdf the sum of the individual gates. RTL gates can be cascaded indefinitely to produce more complex logic functions.
MOSFET devices to achieve a high speed with low power dissipation. Exactly the same as diode logic but can perform at a higher speed. Uses neon bulbs or 3 element neon trigger tubes to perform logic. Performed by semiconductor diodes and small ferrite toroidal cores for moderate speed and moderate power level.
Uses thyristors and SCRs to perform logic operations where high current and or high voltages are required. Uses transistors switching between saturated and cutoff states to perform logic. The transistors require carefully controlled parameters. Economical because few other components are needed, but tends to be susceptible to noise because of the lower voltage levels employed. Often considered to be the father to modern TTL logic.