FreeBSD - definição. O que é FreeBSD. Significado, conceito
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O que (quem) é FreeBSD - definição

FREE UNIX-LIKE OPERATING SYSTEM
TrustedBSD; Freebsd; FBSD; Free BSD; FreeBSD kernel; Free bsd; NanoBSD; Sysinstall; FREEBSD; Linuxulator; FreeBSD 8; FreeBSD Project; FreeBSD 5.0
  • FreeBSD 13.0 startup with console login prompt
  • PC-BSD version 10, the operating system that was later known as [[TrueOS]]

FreeBSD         
<operating system> A free operating system based on the {BSD 4.4-lite} release from Computer Systems Research Group at the University of California at Berkeley. FreeBSD requires an ISA, EISA, VESA, or PCI based computer with an Intel 80386SX to Pentium CPU (or compatible AMD or Cyrix CPU) with 4 megabytes of RAM and 60MB of disk space. Some of FreeBSD's features are: preemptive multitasking with dynamic priority adjustment to ensure smooth and fair sharing of the computer between applications and users. Multiuser access - peripherals such as printers and tape drives can be shared between all users. Complete TCP/IP networking including SLIP, PPP, NFS and NIS. {Memory protection}, demand-paged virtual memory with a merged VM/buffer cache design. FreeBSD was designed as a {32 bit operating system}. X Window System (X11R6) provides a graphical user interface. Binary compatibility with many programs built for SCO, BSDI, NetBSD, 386BSD, and Linux. Hundreds of ready-to-run applications in the FreeBSD ports collection. FreeBSD is source code compatible with most popular commercial Unix systems and thus most applications require few, if any, changes to compile. {Shared libraries}. A full compliment of C, C++, Fortran and Perl development tools and many other languages. {Source code} for the entire system is available. Extensive on-line documentation. http://freebsd.org/. FreeBSD">ftp://ftp.freebsd.org/pub/FreeBSD or try your nearest mirror site listed at the home site or buy the CD-ROM from Walnut Creek. (1998-11-24)
FreeBSD jail         
CONTAINER SYSTEM
Freebsd jail; Jail shell; FreeBSD Jail
The jail mechanism is an implementation of FreeBSD's OS-level virtualisation that allows system administrators to partition a FreeBSD-derived computer system into several independent mini-systems called jails, all sharing the same kernel, with very little overhead. It is implemented through a system call, jail(2), as well as a userland utility, jail(8), plus, depending on the system, a number of other utilities.
FreeBSD Ports         
PACKAGE MANAGEMENT SYSTEM
FreeBSD Ports Collection; Freebsd ports; Freshports; FreeBSD ports; BSD Ports; Pkg (FreeBSD); DPorts
The FreeBSD Ports collection is a package management system for the FreeBSD operating system, providing an easy and consistent way of installing software packages. As of February 2020, there are over 38,487 ports available in the collection.

Wikipédia

FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 2005, FreeBSD was the most popular open-source BSD operating system, accounting for more than three-quarters of all installed and permissively licensed BSD systems.

FreeBSD has similarities with Linux, with two major differences in scope and licensing: FreeBSD maintains a complete system, i.e. the project delivers a kernel, device drivers, userland utilities, and documentation, as opposed to Linux only delivering a kernel and drivers, and relying on third-parties for system software; FreeBSD source code is generally released under a permissive BSD license, as opposed to the copyleft GPL used by Linux.

The FreeBSD project includes a security team overseeing all software shipped in the base distribution. A wide range of additional third-party applications may be installed from binary packages using the pkg package management system or from source via FreeBSD Ports, or by manually compiling source code.

Much of FreeBSD's codebase has become an integral part of other operating systems such as Darwin (the basis for macOS, iOS, iPadOS, watchOS, and tvOS), TrueNAS (an open-source NAS/SAN operating system), and the system software for the PlayStation 3 and PlayStation 4 game consoles. The other BSD systems (OpenBSD, NetBSD, and DragonFly BSD) also contain a large amount of FreeBSD code, and vice-versa.

Exemplos do corpo de texto para FreeBSD
1. He noted that the operating system was derived from FreeBSD, open source software that was built from the ground up to provide security for computers networked together.
2. Since its origins in the early 1''0s, the Unix–based FreeBSD has continually been battle–tested by college students and computer security specialists.