Masternode is simply a cryptocurrency full node or computer wallet that keeps the full copy of the blockchain in real-time, just like your have Bitcoin full nodes and is always up & running.
But masternodes are considerably different in their functionality than normal nodes.
They are different because they perform several other functions apart from just keeping the full blockchain and relaying blocks/transactions as a full node does in Bitcoin/Litcoin.
Some of the special functions that these nodes perform are:
These masternodes are not standalone but they are always communicating with other such nodes to make a decentralized network and are often referred in short form as MN.
So, you've heard about masternode, took a look at what they stand for and you see it as a good investment opportunity. Next step is to choose your desired coin.
What is Sheckel? According to their whitepaper, Shekel is a blockchain technology enabled open-source and privacy-focused digital curency. The technology is driven by the Dash masternodes. The relationship between Bitcoin, Dash and Shekel are: while Dash is a Bitcoin fork (an improvement on Bitcoin), Shekel is a Dash fork (an improvement on Dash). With Shekel Wallets, one can simply carry out instant and private transactions that are backed by the Shekel blockchain.
