Python Programming Tutorial for Beginners - Python for Computer Science: What is Programming

Veröffentlicht am: 23 Oktober 2020
auf dem Kanal: A State Of Data

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We'll get started with programming, and programming is really the core computer science.
Most machines are designed to do just one thing.
You can't do anything without a program.
The program is what tells the computer what to do.
And the power of the computer is that, unlike a toaster, which is only designed to do a few things, a computer can do anything.
A computer is a universal machine. We can program it to do essentially any computation.
So anything that we can imagine, anything that we can figure out how to write a program for, we can make the computer do.
And what the program needs to be is a very precise sequence of steps.
The computer itself doesn't know how to do anything. It has a few simple instructions that it can execute.
And to make a program do something useful we need to put those instructions together in a way that it does what we want.
So we can turn the computer into a web browser, into a server, into a game-playing machine, into a toaster, without anywhere to put the bread.
But it can do anything we can imagine: at least any computation we want to do.
The power of the computer is that it can execute the steps super fast.
So we can execute billions of instructions in one second.
The program gives us a way to tell the computer what steps to take.
So there are many different languages for programming computers.
The language we are going to learn in this course is the language called Python, like the snake. It is also named after Monty Python.
The important thing about Python is that it gives us a nice high-level language that we can use to write programs.
And that means instead of our program running directly on the computer, the programs we write will be an input to the Python program which runs on the computer.
What Python is called an interpreter That means it runs our programs, it interprets them, executes the programs that we wrote in Python language by running a program in a language into the computer can understand directly.

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