BigDataWhat it is?Why it is important in the modern context?What are the technologies which are currently used to analyse BigData?AgendaBig Data - DefinitionImportance of Big DataTechnologies used in Big Data AnlalysisDefinition - Big DataAccording to Gardtner, they have defined the BigData as 'V's1.VolumePeta Bytes - Which is billion giga bytes of dataModern Airliner - London - New York. Millions of lines of Program in it and it generates 10 TB of data every 30 minutes per engine. When it reaches NY it creates about 650 TB of Data. This data is very huge and Modern traditional Databases wont be able to store these huge data every hour. Thats why the complexcity of the Bigdata comes in. Again all the data which is big may not be considered as BigData. Means for example take an example of Telephone company which generates call logs eventhough it is huge it is stored in strucred manner. Processing these data is not a problem as it is alredy in strucred format. Aircraft Sensors capturing data of pressure inside the aircraft, 2.Variety - FB - Audio, Video, Pictures, Text which is not structred and it is accumulating so much of data say in TBs everyday. How to process this data and to show custom advs to the users. So which is to be processed and analysed for showing the target Advs for a bussiness.3.Velocity - The rate in which the data comes in.4.Veracity - Genunity of Data. Good data and Spam Data