Donald Watts Davies, CBE, FRS[1] (7 June 1924 – 28 May 2000) was a Welsh computer scientist who was employed at the UK National Physical Laboratory (NPL). In 1965 he developed the concept of packet switching,[2][3] which is today the dominant basis for data communications in computer networks worldwide, and implemented it in the NPL network. This was independent of the work of Paul Baran in the United States who had a similar idea in the early 1960s. The ARPANET project credited Davies primarily for his influence.

Source: Donald Davies – Wikipedia

Paul Baran (/ˈbærən/; April 29, 1926 – March 26, 2011) was a Polish-born Jewish American engineer who was a pioneer in the development of computer networks. He was one of the two independent inventors of packet switching,[2] which is today the dominant basis for data communications in computer networks worldwide, and went on to start several companies and develop other technologies that are an essential part of modern digital communication.

Source: Paul Baran – Wikipedia

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Source: ESP12-E : Panic from umm_malloc ( Inconsistent between similar ESPs ) · Issue #1699 · esp8266/Arduino · GitHub

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Source: ESP-12E Module: Exception (2) after boot · Issue #1675 · esp8266/Arduino · GitHub

https://arduino.stackexchange.com/questions/24648/how-to-determine-flash-size

http://www.instructables.com/id/ESP-12F-Flashing-AT-Firmware/

Source: Flash Memory of ESP-12E – Everything ESP8266

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