martes, 1 de diciembre de 2009

Operating Systems



An operating system is a software system, ie, a set of computer programs designed to perform many tasks among which the management of peripheral devices.

When voltage is applied to the processor of an electronic device, it runs a small assembly language code located in a specific address in ROM (address reset) and known as reset code, which in turn executes a routine which initializes accompanying hardware processor. Also in this phase usually initialized controller interrupts. Following this stage runs the boot code (startup code), also code in assembly language, whose most important task is to run the main program (main ()) application software [1].

An operating system can be found in most electronic devices that use microprocessors to operate, because thanks to them we can understand the machine and that it fulfills its functions (cell phones, DVD players, radios, computers, radios, etc. ).


luisa Nuñez c.i:21.146.188