What is code? If you don't know, you need to read this:
Summary
Years ago, when Microsoft was king, Steve Ballmer, sweating through his blue button-down, jumped up and down in front of a stadium full of people and chanted, “Developers! Beginning in the 1950s, but catching fire in the 1980s, a proportionally small number of people became adept at inventing ways to satisfy basic human desires (know the time, schedule a flight, send a letter, kill a zombie) by controlling the machine. Coders, starting with concepts such as “signals from a keyboard” and “numbers in memory,” created infinitely reproducible units of digital execution that we call software, hoping to meet the needs of the marketplace. Companies such as Google, Facebook, and Twitter are built on top of fundamental computer science and pay great attention to efficiency, because their users do things (searches, status updates, tweets) an extraordinary number of times. Every day he does a 15-minute “standup” meeting via something called Slack, which is essentially like Google Chat but with some sort of plaid visual theme, and the programmers seem to agree that this is a wonderful and fruitful way to work.