Promissory notes V/s Crypto currency

 Cash, promissory notes, and cryptocurrency are all different types of financial instruments with different characteristics and uses. Here are some key differences between them:

1. 
   
   
   Cash: Cash is physical money, in the form of coins and banknotes, that is used as a medium of exchange for goods and services. It is legal tender that is accepted by merchants and businesses. Cash is issued by the government and is generally considered the most widely accepted form of payment.

2. Promissory notes: Promissory notes are written promises to pay a certain amount of money at a specific time or on demand. They are legal documents that can be used as evidence of debt in court. Promissory notes are often used in business transactions as a way to provide short-term financing or to extend credit to customers. They can be issued by individuals, businesses, or financial institutions.

3. Cryptocurrency: Cryptocurrency is a digital asset that is designed to work as a medium of exchange. It is based on cryptography, which makes it secure and difficult to counterfeit. Cryptocurrency is decentralized, meaning that it is not controlled by any central authority or government. Transactions are recorded on a blockchain, which is a public ledger that is maintained by a network of computers. Some popular examples of cryptocurrency include Bitcoin, Ethereum, and Litecoin.

In summary, cash is physical money, promissory notes are written promises to pay, and cryptocurrency is a digital asset designed to work as a medium of exchange. Each has its own unique characteristics and uses in the financial world