What is a programming language Do you know the recipe for apple pie? As explained in the post, it would be difficult for a computer to understand. Make no mistake: contrary to popular belief, computers are dumb. Let's summarize the recipe with simple steps: Heat the mold with some butter Mix flour, sugar, milk and eggs in a bowl and beat with the mixer. Butter the whole mold Peel 4 apples and put them in the mold. Drizzle with the mixture. Bake in the oven for 45 minutes. So far everything easy, right? Well, this is our show. A program is nothing more than a set of instructions given to the processor, which is the brain of the computer. And, as we see, it is like a cooking recipe.