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DATABASE A systematic collection of data Databases support storage and  manipulation of data Databases make data management easy Examples: An online telephone directory would definitely use database to store data pertaining to people, phone numbers, other contact details, etc. Your electricity service provider is obviously using a database to manage billing , client related issues, to handle fault data, etc. Let's also consider the facebook. It needs to store, manipulate and present data related to members, their friends, member activities, messages, advertisements and lot more. DATABASE MANAGEMENT SYSTEM (DBMS) A collection of programs which enables its users to access database, manipulate data, reporting / representation of  data .  Also helps to control access to the  database.  Had been first implemented in 1960s. With time database technologies evolved a lot while usage and expected functionalities of databases have been increased immensely. TYPES

INTERNET PROTOCOL ADDRESS. HOW IT LOOKS LIKE!!!!

                                    Operating System What Is an OPERATING SYSTEM(OS)? It is a software that allows a user to run other applications on a computing device.  An OS manages computer's hardware resources plus: input devices  e.g keyboard/mouse output devices e.g display monitors/printers/scanners                                                            network devices e.g modems/routers/network connections storage devices e.g internal/external data Also provides services to facilitate the efficient execution and management of and memory allocation for any additional installed software app. program. WHAT IS WINDOWS? Windows OS , computer  operating system  (OS) developed by  Microsoft Corporation  to run  personal computers  (PCs). Featuring the first  graphical user interface  (GUI) for  IBM -compatible PCs, the Windows OS soon dominated the PC market. Approximately 90 percent of PCs run some version of Win