A batchA batch process refers to the execution of a program (or multiple programs) without human interaction. This is the dominant mode of operation for mainframe computers and high performance computing systems. process refers to the execution of a program (or multiple programs) without human interaction. This is the dominant mode of operation for mainframeMainframe computers are generally larger systems shared by multiple users (similar to modern servers though they're usually no longer referred to as mainframe computers). This was the dominant mode of computing until the advent and rise of personal computers in the late 1970's. Like modern high performance computing systems, processing on mainframe computers was done as batch processes and lacked interactivity. computers and high performance computing systems.