Question: Which Two People Are Credited With Creating The UNIX Operating System?

Is Linux a kernel or OS?

The Linux® kernel is the main component of a Linux operating system (OS) and is the core interface between a computer’s hardware and its processes.

It communicates between the 2, managing resources as efficiently as possible..

Who are the creators of the Unix operating system?

In 1969 a team led by computer scientists Ken Thompson and Dennis Ritchie created the first version of UNIX on a PDP-7 minicomputer, which was chosen mainly because of Thompson’s familiarity with the system from his hobby work on it.

Which of the following are based on Unix?

Aside from Microsoft’s Windows NT-based operating systems, nearly everything else traces its heritage back to Unix. Linux, Mac OS X, Android, iOS, Chrome OS, Orbis OS used on the PlayStation 4, whatever firmware is running on your router — all of these operating systems are often called “Unix-like” operating systems.

What are features of Unix?

The UNIX operating system supports the following features and capabilities:Multitasking and multiuser.Programming interface.Use of files as abstractions of devices and other objects.Built-in networking (TCP/IP is standard)Persistent system service processes called “daemons” and managed by init or inet.

What is the output of who command?

Explanation: who command output the details of the users who are currently logged in to the system. The output includes username, terminal name (on which they are logged in), date and time of their login etc. 11.

How many types of permissions a file has in Unix?

three typesExplanation: In UNIX system, a file can have three types of permissions -read, write and execute. Read permission means that the file is readable.

Is Unix used today?

Proprietary Unix operating systems (and Unix-like variants) run on a wide variety of digital architectures, and are commonly used on web servers, mainframes, and supercomputers. In recent years, smartphones, tablets, and personal computers running versions or variants of Unix have become increasingly popular.

Is Unix operating system free?

2.1. In 1984 Richard Stallman’s Free Software Foundation (FSF) began the GNU project, a project to create a free version of the Unix operating system. By free, Stallman meant software that could be freely used, read, modified, and redistributed.

What type of OS is UNIX?

Unix (/ˈjuːnɪks/; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

What are the 5 operating system?

Five of the most common operating systems are Microsoft Windows, Apple macOS, Linux, Android and Apple’s iOS.

What are the three main components of Unix architecture?

In general, the UNIX operating system is made up of three parts; the kernel, the shell, and the programs.

What means GPL?

General Public License“GPL” stands for “General Public License”. The most widespread such license is the GNU General Public License, or GNU GPL for short. This can be further shortened to “GPL”, when it is understood that the GNU GPL is the one intended.

Which are examples of permissive software licenses?

Examples include the GNU All-permissive License, MIT License, BSD licenses, Apple Public Source License and Apache license. As of 2016, the most popular free-software license is the permissive MIT license.

Who formed the Free Software Foundation to promote open development?

Richard StallmanThe Free Software Foundation (FSF) is a 501(c)(3) non-profit organization founded by Richard Stallman on 4 October 1985 to support the free software movement, which promotes the universal freedom to study, distribute, create, and modify computer software, with the organization’s preference for software being …

Which part of the Unix operating system interacts with the hardware?

kernelWhich part of the UNIX operating system interacts with the hardware? Explanation: The kernel is the core of the operating system. It is a collection of routines written in C which directly communicates with the hardware. User programs that need to interact with the hardware access the services of the kernel.

Is Unix paid?

There are paid versions also available for Linux. Different flavors of Unix have different pricing depending upon the type of vendor. Linux is Open Source, and thousands of programmer collaborate online and contribute to its development. Unix systems have different versions.

How many types of UNIX OS are there?

Some other major commercial versions include SunOS, Solaris, SCO UNIX, AIX, HP/UX, and ULTRIX. The freely available versions include Linux and FreeBSD (FreeBSD is based on 4.4BSD-Lite). Many versions of UNIX, including System V Release 4, merge earlier AT&T releases with BSD features.

What does GNU mean?

GNU’s Not UnixThe GNU operating system is a complete free software system, upward-compatible with Unix. GNU stands for “GNU’s Not Unix”. It is pronounced as one syllable with a hard g. Richard Stallman made the Initial Announcement of the GNU Project in September 1983.