Currency has evolved from physical forms like metals and beads to modern paper, coins, and centralized digital entries, while cryptocurrency represents a digital evolution underpinned by blockchain technology. This tutorial explores the distinctions between coins and tokens, with coins being native to a single blockchain and tokens existing as smart contracts on existing blockchains. It provides a detailed guide on developing a crypto coin using the Go programming language, including setting up the genesis block, creating account structures, handling transactions, and developing a command-line interface (CLI) to interact with the coin. The tutorial emphasizes understanding the foundational elements of blockchain technology, such as the genesis block and transaction management, and outlines challenges like account uniqueness, transaction authorization, and network expansion that need to be addressed for a robust coin system.