What is the Data & Information and Data Volumes


I will explain What is the Data and Information and Data Volumes in this article.



Data and Information

The Data and Information words are known to be the same by most people, but they are not the same.

The raw and unorganized facts that are noteworthy but have not gained any meaning are called Data.

Information is called processed, organized, structured data.

Data is the raw material of the database. The information that plays a very important role in the decision-making processes of the institutions using the database is formed as a result of correct, relevant and timely processing of the data. Therefore, most of the databases are composed of data and the data obtained from these databases are also kept in the Databases.

In the 1970s, Gigabyte-sized data was probably a dream, but today, Terabyte, even Petabyte Databases, is normal and exist for almost every institution.

In the future, it will now be petabyte (1024 terabyte), exabyte, zettabyte and maybe yottabyte (2^80).


Data Volumes

Volume of data in a single file or file system can be described by a unit called a byte.

Following table is explaining data volume units by credit Roy Williams, Center for Advanced Computing Research at the California Insitute of Technology.

UnitValueDefinition, Example
Bit1A binary decision
Byte8 bitsA character
Kilobytes (KB)1024 bytesA paragraph of a text document
Megabytes (MB)1024 KilobytesA small novel
Gigabytes (GB)1024 MegabytesA Small movie
Terabytes (TB)1024 Gigabytesall the X-rays in a large hospital
Petabytes (PB)1024 Terabyteshalf the contents of all US academic research libraries
Exabytes (EB)1024 Petabytesabout one fifth of the words people have ever spoken
Zettabytes (ZB)1024 Exabytesas much information as there are grains of sand on all the world’s beaches
Yottabytes (YB)1024 Zettabytesas much information as there are atoms in 7,000 human bodies


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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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