Can some one explain the block chain technology of bitcoin and other coins . How they work in simpler way . More Videos and Images used in explanation would be preferred
The best explanation of Bitcoin that I know is this: How Bitcoin Works Under the Hood - YouTube
Once you understand the Bitcoin blockchain, it should be easy for you to understand in other contexts. Satoshi's original definition (he called it 'block chain') involves 'proof of work'. Some argue that proof of work is fundamental to blockchain, others not.
I hope the below link helps you giving a brief overview of what is block chain and the usecases where it can be used https://www.coindesk.com/information/what-is-blockchain-technology/