Introduction

History of SAP ..

It will be great to know about SAP first before going into technical things ..

So i have decided to tell you about the history first then i will go into details ...

SAP was started in 1972 by 5 former IBM employees in Mannheim,Germany.

The original name for SAP was German: Systeme, Anwendungen, Produkte, German for "Systems Applications and Products." The original SAP idea was to provide customers with the ability to interact with a common corporate database for a comprehensive range of applications

We can say its a software which will allow business to track customers and business processes. It is well known as Enterprise resource planning (ERP) and data management programs which will be used by  customers to track their business by using different kind of modules like Warehouse Management, Material Management, Sales and Distribution, Finance and Human Resource.

Its being used by all sizes of business .. small, mid-level and large.

What is an SAP System ?

SAP consists of one database and one or more instances

The instace togethe with database forms a runnable SAP system and is called Central Instance.

A system ID must be assigned to the central instance which should not be identical to other systems.

 Elements of a SAP system

• Database (with Abap and Java Schema)
• ABAP Central Instance
• In ABAP - Message Server, Gateway,Internet Communication Manager(ICM)(optional).
• Java Central Instance - which ontains dispatcher and at least one server
• Java Services Instance - which contains Message server and enque processes
• Java Software Deployment Manager(SDM)

Note: Sources from internet and SAP Certification documents ...