Components of information systems. An information system is essentially made up of five components hardware, software, database, network and people. These five components integrate to perform input, process, output, feedback and control.Hardware consists of input/output device, processor, operating system and media devices.omponents of information systems. An information system is essentially made up of five components hardware, software, database, network and people. These five components integrate to perform input, process, output, feedback and control.