COBOL (Common Business-Oriented Language) is a computer programming language designed for use in business, finance, and administrative systems and widely used in applications deployed on mainframe computers, such as large-scale batch and transaction processing jobs.
JCL (Job Control Language) is a scripting programming language used on IBM mainframe operating systems to instruct the system on how to run a batch job or start a subsystem.
IBM mainframes are high-performance computers with large amounts of memory and processors with capability to process billions of simple calculations and transactions in real time.
Microsoft Access is a database management system that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-developmental tools.
Aco Hardware Productivity And Operations Technology