1815-1852. British mathematician and writer.
Wrote the first algorithm intended for machine execution, for Charles Babbage's Analytical Engine.
Recognized that a general-purpose computation engine could manipulate symbols beyond pure arithmetic, foreseeing software.
Her notes on the Analytical Engine contain the clearest early articulation of what a program is.
Daughter of poet Lord Byron; combined mathematical rigor with imaginative vision.
The first person to distinguish between the machine (hardware) and the process (software), a separation central to every protocol including cyber.