... ... IBM z/TPF Operating System

IBM z/Transaction Processing Facility (z/TPF) Operating System is a special-purpose system that is used by companies with very high transaction volume, such as credit card companies and airline reservation systems.

Citi

Financial Services

Atos

Information Services

American Express

Financial Services

Hewlett Packard Enterprise

Information Services

HPE Pointnext Services

Information Services

Tata Consultancy Services

Information Services

Delta Air Lines

Airlines & Aviation

Xerox

Commercial Printing

IBM

Software - General

Visa

Information Services

Mphasis

Information Services

Sierra Project Management Inc

Information Services

LINKIT

Information Services

Present S.p.A.

Information Services

TPF Software

Software - General

Purisolve, Inc.

Management Consulting

RE-EDIT

Information Services