Go is a programming language that focuses on simplicity and speed. It’s simpler than other languages, so it’s quicker to learn. And it lets you harness the power of today’s multicore computer processor, so your programs run faster. History of Go Back in 2007, the search engine Google had a problem. They had to maintain programs with millions of line of code. Before they could test new changes, they had to compile the code into runnable form, a process which at the time took the better part of an hour.