This document discusses blockchain technology. It begins with defining blockchain as a decentralized digital ledger that records transactions across many computers. It then explains that a block is the current part of the blockchain that records all transactions as a permanent database. It describes how blockchain works and the different types including public, private, semi-private, and shared blockchains. It outlines some of the merits and demerits of blockchain technology and discusses potential applications. It concludes that blockchain is still an emerging technology that will transform how society functions as applications continue to be experimented with and developed over the next few years.

1. BLOCKCHAIN
PRESENTED BY:
NAVEEN KUMAR B R

2. AGENDA:
• Introduction
• Difference between Traditional and Distributed System
• Block
• How does Blockchain work?
• Types of Blockchain
• Merits
• Demerits
• Applications
• Conclusion

3. DIFFERENCE BETWEEN TRADITIONAL AND
DISTRIBUTED SYSTEMS:

4. WHAT IS A BLOCKCHAIN?
• A Blockchain is a decentralised and distributed digital ledger that is used to record
transactions across many computers.

5. WHAT IS A BLOCK?
• A Block is the current part of a blockchain which records all the transactions, that goes into a Blockchain as
permanent database.

6. HOW A BLOCKCHAIN WORKS?

7. TYPES OF BLOCKCHAIN:-
• Public
• Private
• Semi Private
• Shared

8. PUBLIC BLOCKCHAIN:
• These Blockchains are open to the public and any one can participate as a node in decision-making
process.
• Here the ledgers are not owned by anyone and are publicly open foe anyone to participate in the
Blockchain.

9. PRIVATE BLOCKCHAIN:
• It has the Impulse or Private and are open only to a consortium or a group of individuals or organistions
that has decided to share the ledger among themselves.

10. SEMI-PRIVATE:
• Here a part of the Blockchain is private and the other is public.
• The private part is controlled by a group of individuals where as the public part is
open for anyone to participate.

11. SHARED:
• It is a generic term that is used to describe any application or a database that is shared by public or a
consortium.

12. MERITS:
• High quality data.
• Reliability
• Process integrity
• Faster transactions
• Lower transaction rate

13. DEMERITS:
• Nacent Technology
• Redundency
• Costly
• Integration concerns

14. APPLICATIONS:

15. CONCLUSION:
• As mentioned above, most of these applications are still underdeveloped The future potential of the
blockchain applications is still unraveling. The next couples of years will be all about experimenting and
applying to all aspects of society. Regardless of which application comes first on a global scale. The
bottom line is, Blockchain is here to stay and is transforming how our society functions.