Need for Data Management

• Storage
• Retrieval
• Transaction
• Audit
• Archival

Physical Data Management

• aka book-keeping
• data management using physical ledgers or journals
• Henry Brown(American Inventor) patented a “receptacle for storing and preserving papers” on November 2, 1886.
• Herman Hollerith adapted the punch cards used for weaving looms to act as the memory for a mechanical tabulating machine, in 1890.

Electronic Data Management

History

• 1950s: Computer Programming started
• 1960s: Data Management with punch card/tapes and magnetic tapes
• 1970s: ◦ COBOL and CODASYL approach was introduced in 1971 ◦ On October 14 in 1979, Apple II platform shipped VisiCalc, marking the birth of the spreadsheet ◦ Magnetic disks became prevalent
• 1980s: RDBMS changed the face of data management
• 1990s: With the Internet, data management started becoming global
• 2000s: e-Commerce boomed, NoSQL was introduced for unstructured data management