තොරතුරු හා සන්නිවේදන තාක්ෂණය, නිර්මිකා දසනායක

Database Defining a Database - Collection of organized data can be defined as a database Manual database Higher the amount of data it becomes difficult to keep in our memory. On such occasions writing these data is one method. That is called manual database. Electronic database The other method is to maintain the data on an electronic medium . Advantages of   Electronic Databases ·          More efficient in retrieving  information.          ·          Easy to obtain copies. ·          Smaller physical space to store data. ·          Data analysis can be carried out efficiently. ·          Data can be shared. ·            Independence of data. Though database and software are c...

Introduction to Operating Systems A Computer consists of                                  hardware,                                  firmware                                 software.                                 Liveware Hardware Any physical component of a computer system with a definite shape is called a hardware. Examples        ...