Business processing environment Centralized processing Decentralized Processing 1

Business processing environment: • Centralized processing • Decentralized Processing • 1. Centralized processing: The business processing is said to be centralized processing if all the data/information processing done in a central location (computer centre at head office). Data will be collected at remote offices and other locations and sent in to the central location. Facilities at the central location • A central computer, probably a large mainframe computer. • Central files, containing all the files needed for the system.

Decentralized processing: The business processing is said to be decentralized processing if all the data/information processing done at several different locations, away from the centre or head office. Each region, department or office will have its own processing systems. Facilities used Decentralized processing – There will be several different and unconnected computers in the various offices. – Each computer will operate with its own programs and its own files.

Distributed System • A distributed system is the combination of different hardware located at central place e. g mainframe computer with other computers , minicomputer and personal computers located at various sites in the organization.

Features of distributed Processing • Interconnected computers are distributed at wide geographical area. • A computer can access data and files from other computers • The computers have ability to process the data jointly in the system. • Processing can be centralized as well as dispersed • Files are saved centrally as well as locally • Local user can have limited control & responsibility on their data

Multiuser & Distributed System Practically speaking the IS should neither be entirely centralized nor decentralized , it would suitable mixer of both • Multiuser system • In multiuser system there is a central computer with a number of terminals connected to it. These terminals are dumb terminals which do not include a CPU and cannot do independent processing, they rely on central computer processing power.