"EMACS, the mother of all editors, turns 50!" writes Slashdot reader dr_jerry, sharing a report from MIT Technology Review: Programming used to be a very different experience from the one we know today. In fact, the first programmers didn't write code at all; the six women who worked on the ENIAC, one of the world's first computers, at the University of Pennsylvania in 1946 did it by physically configuring switches, cables, and plugboards. A few years later, MIT engineers programmed the Whirlwind by punching code onto paper tape that was then loaded into the computer's memory -- making it among the first "stored-program" machines. Later, they and others moved on to punch cards, one for each line of code. By the early 1960s, programmers with interactive computers could use a "line editor" to type their code on teletypes -- large, noisy keyboard-and-printer machines. They'd type one line of code at a time, and their work would be saved on a spinning hard disk the size of a modern washing machine. But there was still no such thing as the now-familiar full-screen text editors that allow programmers to see and modify many lines at a time on a display. One of the first such tools, EMACS, turns 50 this year, and it is still widely used. EMACS first ran on the early video terminals at the MIT Artificial Intelligence Laboratory in 1976, but its core concepts were so powerful that it was rewritten for many operating systems in the decades that followed. Apple even distributed it with Mac OS X. Beyond that, the software-sharing community that started around EMACS helped give rise to the modern-day free software movement and the GNU/Linux operating system.Read more of this story at Slashdot.