ELECTRONIC HISTORY

                                        

          

John Ambrose Fleming

Electronics actual history began with the invention of vacuum diode by J.A.Fleming, in 1987: and , after that ,a vacuum triode was implemented by Lee De forest to amplify electrical signals. this led to the introduction of tetrode and pentode  tubes that dominated the world until the world war II 

                                             Subsequently the era of the transistor has began with the junction transistor invention in 1948. Even though, this particular invention in 1948, even though, this particular invention got NOBEL prize, yet it was later replaced with a bulky vaccum tube that would consumes high power for its operation. The use of germanium and silicon semiconductor materials made theses transistors gain the popularity and wide acceptance usage in different circuits.
                     

                                            The subsequent years witnessed the invention of the integrated circuits(IC's) that changed the electronic circuits' nature as the entire electronic circuit got integrated on a single chip, which resulted in low cost, low size and low weight electronic devices. The years 1958 to 1975 marked as the introduction of the IC with the enlarged capabilites of over several thousand components on a single chip such as small scale integration , medium scale integration and very large scale integrations ICs.

                            Next the trend is moving on towards the JFETs and MOSFETs that were developed  during 1951 -1958 by improving the total device performance and making reliable and powerful transistors.

                                 These ICs were changed the overall architectture of the computers and laptops. these ICs were developed with the transistor logic , integrated injection logic and emitter coupled logic  technologies. Later these digital ICs employed PMOS,NMOSand CMOS fabrication design technologies.
                              All these great changes in all these components led to the introduction of microprocessor in 1969 by Intel. Soon after, the analog integrated circuits were developed that  introduced an operational amplifier for an analog signal processing. these analog circuits include analog multipliers,ADC and DAC converters and analog filters

          

                         This is all about the fundamental understanding of the electronic history.We are leaving in this digital world due to some great scientists.