Through the Ages: Apple Concurrency APIs
(Until Jacob’s Tech Tavern came along), Swift Concurrency was the best thing to happen to the Swift Language. It’s a well-designed, modern paradigm that allows you to perform the most complicated kinds of parallel processing and multitasking like it’s nothing. But it was a long road to get here. Apple doesn’t one-shot their APIs. They are in the oven a long time, and it’s taken them 49 years to hone their concurrency tooling into the fine-tuned magic at our fingertips. Their first breakout machine, the Apple ][, released in 1977. It was a simpler time. Woz couldn’t just implement
Modern threading paradigms we enjoy today simply didn’t exist, because the machines were so primitive. As time went on, computers got more powerful, and our tools evolved. The internet ate the world, iPhones ate the internet, and now we watch cat videos on devices that process instructions faster than every computer in 1985, put together. With great power comes great parallelism, more complex demands from our users, and greater demand for ergonomic tooling. Today we’re going to travel through time and look at the concurrency APIs that were available to Apple platform developers. We’ll run real working code from each era, and ultimately understand how the concurrency tools of today arrived at where they are.
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