Module 01a - History

Question 1

What is Data processing

Answer 1

Is thecollectionand manipulation of items of data to producemeaningfulinformation

Question 2

What is Data

Answer 2

Collection of data objects and their attributes

Question 3

What is Attribute

Answer 3

Is a property or characteristic of an object

Question 4

What is a Object

Answer 4

Object is also known as record, point, case, sample, entity, or instance

Question 5

What is a Database?

Answer 5

A usually large collection of data organized especially for rapid search and retrieval.

Question 6

Who developed the first DBMS

Answer 6

Charles Bachman while working at Honeywell, developed IDS

Question 7

What was the first commercially successful DBMS

Answer 7

IBM IMS, a hierarchical model where data relationships are represented as a tree
still in use today in IBM’s and American Airline’s SABRE reservation system

Question 8

Who’s the father of the Relational Model

Answer 8

Edgar (Ted) F. Codd, a Oxford-trained mathematician workin for IBM @ San Jose Laboratory, in 1970

Question 9

What is the Relational Model

Answer 9

Data independence from hardware and storage implementation
Automatic navigation, or a high level, nonprocedural language for accessing data. Instead of processing one record at a time, a programmer could use the language to specify single operations that would be performed across the entire data set.

Question 10

What was the relational prototypes in the 70’s

Answer 10

System R from IBM

Ingres from UC-Berkeley

Question 11

What’s the meaning of SQL

Answer 11

Structured Query Language

Question 12

What is Entity-Relationship Models

Answer 12

ER Models was proposed by Peter Chen in 1976 for database design, allowing designer to concentrate on the use of data instead of the logical table structure