Computers talk in 1s and 0s, humans don’t. Programming languages are ways to make it easier for human language to get converted into 1s and 0s, and the other way around.
Computers are complicated, and so is language, so programming languages are built to talk to the computer in different ways.
Some languages are designed to give the computer line by line instructions, some are designed to create stand-alone software. Some are really good at math, and some are really good at graphics.
It’s not easy for most people to “think” like a computer, so programming languages try to be as easy to use as possible. This means that they are like tools, none of them can be used for everything, so they make a kit together.
There isn’t one universal programming language because one hasn’t been made that can do everything without being impossible to learn.
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