I stumbled upon an image of a calculator the other day, and I really liked it so decided to replicate it in HTML/CSS.
This is the Abatron 803 from 1976: https://www.calculator.org/calculators/Abatron_803.html
The original image I stumbled upon (which I thought was a real calculator too) and inspired my design by turned out to be a photoshop creation by https://dribbble.com/shots/499001-Abatron-Calculator-Buttons. That design was an interpretation of a real calculator from 1975, called the Abatron 803.
However, I have since edited my design to reflect the design of the real Abatron 803.
This article covers the minimum number of Git commands that you need to learn in order to start being productive and get that code from your machine to the company Git server. Also, a bit of theory and Git installation is covered as well.