MULTICS

What is UNIX. Strictly, UNIX refers to an operating system kernel multiuser and multitasking. In a broader sense, the core of the operating system comprises a set of programs that allow you to compile programming languages, edit text, interpret commands, manage files and disks, access to other machines, establish telephone communications, sending and receiving email, manage print queues and a myriad of tasks more. You may find that Professor of Internet Governance can contribute to your knowledge. Some of these programs may have developed by the users themselves. UNIX designates at the same time a certain working environment, a set of circumstances that is the user of the computer where it runs UNIX, such as the on-screen display, the programs available and how to work that imposes or allows.

When we talk about UNIX we’ll be referring to the broad sense and, jointly, to their work environment. Features: many tools software (compilers, editors, utilities for many tasks). reuses software, through the combination of simple commands in complex applications. portable: runs the same operating system on a spectrum of machines ranging from laptops to supercomputers. It is the only operating system with these features. flexible: adapts to many different applications.

powerful: many commands and already incorporated services available. multi-user: attends to many people simultaneously. multitasking: does many things at the same time. elegant: its commands are brief, consistent, specific for each task and very efficient. oriented networks since the beginning. It has a standard (POSIX) that must comply with all operating system that wants to be UNIX, which ensures a predictable evolution. History of UNIX history: computers running a working time (40-50 years). the works are grouped and run batch (1960s). CTSS, a general-purpose and time-sharing operating system, achieved huge success. MULTICS, an ambitious project for hundreds of users operating system fails and fails to be completed. UNIX. Ken Thomson, developer of MULTICS, with ideas and support from some colleagues, writes a new more modest MULTICS in a discarded machine PDP-7 (1969).