Traduccion 3
Operating Systems
What are operating systems? Can be answered at several levels.
Firstly, an operating system is a program, or a set of programs. Operating systems vary in size from very small to very large, but all are pieces of software. In the past, almost all operating systems were written in a low level language. Currently, many operating systems are partly or completely written in a high level language.
Secondly, an operating system is by virtue of its name, a system. It is...