Tech Hacks And Lifestyle

 What can be a  New Year's Resolution for 2019? I found a perfect new year's resolution that  is   MUTUAL FUNDS What are mutual funds? A mutual fund is a method of investing money, from where we get returns more than any savings account or FD(Fixed Deposit). Type of ways how we can save/invest money? Savings Account Fixed Deposit  Gold Real estate What is a Savings Account? A   S avings account  is a deposit  account  held at a retail bank that pays interest but cannot be used directly as money in the narrow sense of a medium of exchange (for example, by writing a cheque). What is FD?   Fixed deposits  are investment instruments offered by banks and non-banking financial companies, where you can deposit money for a higher rate of interest than savings accounts. Usually, the defining criteria for  FD  is that the money cannot be withdrawn before maturity, but you may withdraw ...

Hadoop is an open-source software framework for storing data and running applications on clusters of commodity hardware. It provides massive storage for any kind of data, enormous processing power and the ability to handle virtually limitless concurrent tasks or jobs. Before jumping into Apache Hadoop, Read about BigData. click here So let's Talk about the History of Apache Hadoop Hadoop was created by Doug Cutting and Mike Cafarella in 2005.  It was originally developed to support distribution for the Nutch search engine project.  Doug, who was working at Yahoo! at the time and is now Chief Architect of Cloudera, named the project after his son's toy elephant.  Cutting's son was 2 years old at the time and just beginning to talk.  He called his beloved stuffed yellow elephant "Hadoop". Now, Doug's son often exclaims, "Why don't you say my name, and why don't I get royalties? I deserve to be famous for this!" ...

Big Data is the huge amount of data which can't be stored and processed using the traditional methods within the given time frame. So, The Question arises that how much big should be the big data . Generally, people think that the data whose size is more than GB, TB, PB is big data. But, it's not the case. some data which is small in size can be a big data. For example 100mb of a document is to be sent by email(we generally use Gmail ), but it's not possible because Gmail  doesn't support this feature.  That's why  100 MB of the document can be referred to as a big data for email service. let's understand bigdata with another Example 1TB of data is given a person, 1 TB contains images which he has to edit and process in a particular amount of Time, for a normal user it will be a Bigdata. Some analysis of data in the real world Facebook-100TB /day twitter- 4400 twites /day LinkedIn - 10TB/day Google+ - 10TB/...

The blockchain is a chain of blocks which contain information. First used in Bitcoin by " Satoshi Nakamoto " in  2009 for Bitcoins(A digital currency) The blockchain is a distributed ledger. Now, what is ledger? According to Wikipedia ledger is A  ledger   is the principal book or computer file for recording and totaling economic transactions measured in terms of a monetary  unit of account  by account type, with  debits and credits  in separate columns and a beginning monetary  balance  and ending monetary balance two account. In simple terms a file which stores information like transactions and account details called Block and the connection between them is Chain. A block contains 3 part  Hash of the previous block Data Hash   Block of Blockchain Hash is a  like a fingerprint, which contains details of data(sender, receiver, content, previous block hash etc) Hash looks like this "a 0680c0...