Gas
A fee which must be paid to execute network transactions on a blockchain. Ethereum Gas is a unit that measures the amount of computational effort that it will take to execute certain operations.
Genesis Block
The first block mined on a blockchain.
Github
An open-source database used by developers to create and share computer code with a large community. The number of updates to a project's Github is sometimes used as a measure of its actual use and future prospects.
Graphics Processing Unit (GPU)
A specialized electronic circuit designed to better display images on devices. GPUs are used in mobile phones and personal computers. Their processing power can be used to mine some cryptocurrencies.