Think of device drivers like translators between a program you're using and a device that that program wants to utilize somehow. The software and the hardware were created by different people or companies and speak two completely different languages, so a translator (the driver) allows them to communicate.
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Middleware is software that lies between an operating system and the applications running on it, enabling communication and data management. Middleware is software that lies between an operating system and the applications running on it, enabling communication and data management.
An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language.
In computing, a windowing system (or window system) is software that manages separately different parts of display screens. It is a type of graphical user interface (GUI) which implements the WIMP (windows, icons, menus, pointer) paradigm for a user interface.
Utility software is system software designed to help analyze, configure, optimize or maintain a computer. It is used to support the computer infrastructure in contrast to application software, which is aimed at directly performing tasks that benefit ordinary users.