"Revolutionizing Digital Transactions: The Comprehensive Guide to Blockchain Technology"

Blockchain technology is a decentralized digital ledger system that records transactions across many computers in such a way that the registered transactions cannot be altered retroactively. This technology underpins cryptocurrencies like Bitcoin and Ethereum, but its applications extend far beyond digital currencies.

1. Course : B.Tech
Semester : 1
st
/2
nd
Subject Name : Emerging Technology for Engineering
(ETE)
Subject Code :KMC102
Topic : Block Chain
Prepared By :Mr. SushilKushwaha
Digital Notes
[Department of Electronics & Communication Engineering]
Maharana Pratap Group of institutions Kothi, Mandhana, Kanpur
(Approved By AICTE, New Delhi And Affiliated To AKTU, Luck now)
© Copyright, Confidential, Maharana Pratap Group 1

2. Syllabus of Unit 2

3. What is Blockchain
•BLOCKCHAINcanbedefinedasachainofblocksthat
containsinformation.
•Eachblockrecordsalltherecenttransactions,andonce
completedgoesintotheblockchainasapermanent
database.
•Eachtimeablockgetscompleted,anewblockis
generated.
•Thepurposeofblockchainistosolvethedoublerecords
problemwithouttheneedofacentralserver.

4. What is Blockchain
•“Ablockchainisaconstantlygrowingledgerwhich
keepsapermanentrecordofallthetransactions
thathavetakenplaceinasecure,chronological,
andimmutableway.”

5. What is Blockchain
Let’sbreakdownthedefinition,
•Ledger:Itisafilethatisconstantlygrowing.
•Permanent:Itmeansoncethetransactiongoesinsdea
blockchain,youcanputupitpermanentlyintheledger.
•Secure:Blockchainplacedinformationinasecureway.It
usesveryadvancedcryptographytomakesurethatthe
informationislockedinsidetheblockchain.

6. What is Blockchain
•Chronological:Chronologicalmeanseverytransaction
happensafterthepreviousone.
•Immutable:Itmeansasyoubuildallthetransaction
ontotheblockchain,thisledgercanneverbechanged.

7. What is Blockchain
•Theblockchainisusedforthesecuretransferofitems
likemoney,property,contracts,etc.withoutrequiringa
third-partyintermediarylikebankorgovernment.
Onceadataisrecordedinsideablockchain,itisvery
difficulttochangeit.
•Theblockchainisasoftwareprotocol(likeSMTPisfor
email).However,Blockchainscouldnotberunwithout
theInternet.
•Itiscomprisedofseveralpieces:adatabase,software
application,someconnectedcomputers,etc

8. What is Blockchain
•Adecentralizedcomputationandinformationsharing
platformthatenablesmultipleauthoritativedomains,who
donottrusteachother,tocooperate,coordinateand
collaborateinarationaldecisionmakingprocess.

9. What Blockchain is NOT
•BlockchainisnotBitcoin,butitisthetechnologybehind
Bitcoin.
•Bitcoinisthedigitaltokenandblockchainistheledgerto
keeptrackofwhoownsthedigitaltokens.
•Youcan'thaveBitcoinwithoutblockchain,butyoucanhave
blockchainwithoutBitcoin.

10. Need of Blockchain

11. Need of Blockchain

12. Need of Blockchain