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Mainframes are large and expensive computers used mainly by government institutions and large companies for legacy applications, typically bulk data processing (such as censuses, industry/consumer statistics, ERP, and bank transaction processing). Most popular among these are the IBM mainframes which have showed remarkable performance over the last four quarters to become IBM's largest hardware growth segment. In mainframe software architectures all intelligence is within the central host computer. Users interact with the host through a terminal that captures keystrokes and sends that information to the host. Mainframe software architectures are not tied to a hardware platform. User interaction can be done using PCs and UNIX workstations. A limitation of mainframe software architectures is that they do not easily support graphical user interfaces or access to multiple databases from geographically dispersed sites. In the last few years, mainframes have found a new use as a server in distributed client/server architectures. Competent Systems has substantive expertise in areas like Cobol, DB2, IMS, IDMS, CICS, JCL, VSAM, Focus, MVS, etc and our professionals can assist you in all your mainframe projects.
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