What's up /sci/. I'm about to use the most basic concept in computer science to make Darwinian evolution look retarded. Sounds insane? Don't believe me? Well read on...
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>The most basic concept in computer science

The simplest way to look at a computer is to break it down into three steps: input, processing, and output.

In the input step, the computer is fed information. For example, let's say you build a simple computer that adds two numbers together and displays them on a screen. You input the numbers "2" and "2".

The next step is processing. This will take your input of "2" and "2", convert this input to a language that the computer can understand (binary), and calculate the result of adding these numbers. The computer will then convert the result from binary back to a format that is more readable to humans.

This brings us to the output step, where the result of "4" is displayed on screen.

Keep in mind that all three of these steps (input, processing, output) must be in place and functional simultaneously, otherwise the computer will be useless (duh).
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>How this relates to biology

A living organism is, in many ways, very similar to a computer with its input, processing, and output steps.

For example, think of a mouse that sees a cat. The mouse detects the cat with its eyes (input), the mouse's brain and nervous system recognize the cat as a threat (processing), and the mouse responds by running from the cat (output).

Just like the computer, all three of thsese steps must be in place and functional simultaneously, otherwise the mouse will be eaten by the cat.

You can think of the mouse as having "software" built into its brain that tells it to run from threats.
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(Don't worry, more text wall incoming) (1/?)