Fundamentals of Database Management Systems Database Management System is a software package/ system to facilitate the creation and maintenance of a computerized database. Evolution of Database Management Systems The revolution of database management systems were began on mid-1960s. Before that data was stored as paper records. It contributes a lot of disadvantages. Because of that people used to search another way to store their important data more safely and easily. As a result of that file-based
Computerized Database. Example 1.1 – Evolution Of Database Managemnet Systems Humans started to store information very long ago. From time to time it has developed in many ways. More usable, more complete and more efficiently. 1960s – Computerized database management systems started in 1960s! There were 2 popular data models in this decade. 01. CODYSYL
Introduction The database is the collection of interrelated data which are organized and can be processed by one or more application programs. Advantages of using a Database Mainly a database is used to controlling redundancy in data storage. Also, it’s restrict unauthorized access, Backup and Recovery option, providing storage structures and enforcing integrity constraints. The characteristics of a database are as follows • Structured and Described Data • Data Integrity • Transactions • Data Persistence
The database is now an essential part of our daily life that often we are not aware that we are using one. Today's world relies mostly on databases. So, why do we need databases? The purpose of a database is to help to enable individuals to keep track of things. From birth to death, we generate and consume data. The trail of data begins with the birth certificate and continues all the way to a death certificate. In between, every individual creates and consumes enormous amounts of data. Databases
library 10 1.1.2 Description and functions of the British Library 11 1.1.3 Description of the Bodleian digital library Systems and service 12 1.2 Analysis of the state of the art web technologies 17 1.2.1 Description of web technologies 17 Advantages and disadvantages of web technologies 21 Description of the TNEU library catalogue 26 1. ALGORITHMIC-MATHEMATICAL AND INFORMATION BASES OF THE SOFTWARE SYSTEM 29 1.1. Conceptual Bases 29 1.1.1. Description of technologies used in the work 29 1.2. Algorithmic
aCHAPTER 1: INTRODUCTION ________________________________________ 1.1 DISTRIBUTED COMPUTING Distributed computing is a field of computer science that studies distributed systems. A distributed system consists of multiple autonomous computers that communicate through a computer network. The computers interact with each other in order to achieve a common goal. A computer program that runs in a distributed system is called a distributed
CHAPTER -1 INTRODUCTION The outbreak of digital image processing in 1920’s has revolutionalised the communication process [l]. The images were the first language used by the humans for interaction. The images in the form of pictures were carved on stone which became the first language for communication and these carvings were available for the future generation. With the technical advancements in recent times; image processing techniques has became an important part of the communication system. From