A mainframe is a type of computer that is typically used by large organizations for critical applications, bulk data processing, such as census, industry and consumer statistics, enterprise resource planning, and financial transaction processing. Mainframes are known for their large storage capacity, fast processing speed, and high reliability. They are also capable of running multiple tasks simultaneously, making them well-suited for handling large volumes of data and transactions. Mainframes are generally more expensive to purchase and maintain than smaller computers, but they are able to handle much larger workloads and can be more cost-effective in the long run for organizations that need to process large amounts of data. Mainframes Online Training at Coursack will cover topics COBOL, JCL , DB2, VSAM and TSO/ISPF. Become an Mainframe Professional today by Enroling in our virtual online Mainframes Training.