[Wonnk13]

Not trying to be a smartass, if "Hello, World" is the most basic program, why would a single layer perceptron model not be what OP is looking for?

[wayn3]

Because that would be the equivalent of telling someone to write "Hello World" on a piece of paper in order to show them how programming works.

A single layer isn't a "neural network". The difference between logistic regression and a really simple neural network is the ability to behave in a non-linear way.

A single layer amounts to a matrix multiplication. Matrices are linear operators.