In computing, a system call (syscall) is the programmatic way in which a computer program requests a service from the operating system on which it is executed...

For most file systems, a program initializes access to a file in a file system using the open system call. This allocates resources associated to the...

process", makes any environment changes the child will need and then calls the exec system call to overlay itself with the new program: it ceases execution of...

corresponding system call named execve, whereas all other functions are user-space wrappers around it. High-level programming languages usually provide one call named...

a file descriptor that is normally obtained from a previous call to open. This system call reads in data in bytes, the number of which is specified by...

stat() is a Unix system call that queries the file system for metadata about a file (including special files such as directories). The metadata contains...

A close system call is a system call used to close a file descriptor by the kernel. For most file systems, a program terminates access to a file in a...

being used interchangeably. Both file descriptors in a dup() system call refer to the same open file description which means they share file offset and file...

On many computer operating systems, a computer process terminates its execution by making an exit system call. More generally, an exit in a multithreading...

is the primary way to output data from a program by directly using a system call. The destination is identified by a numeric code. The data to be written...

Open Network Computing (ONC) Remote Procedure Call (RPC), commonly known as Sun RPC is a remote procedure call system. ONC was originally developed by...

Entropy-supplying system calls are system calls in Unix-like operating system kernels through which processes can obtain entropic or random data. The...

memoir Open (process), a program launcher invoked from the command line in NeXTSTEP or Mac OS X Open (system call), standardized system call for opening...

The open-field system was the prevalent agricultural system in much of Europe during the Middle Ages and lasted into the 20th century in Russia, Iran...

A call-to-gate system is an airport terminal design in which passengers are kept in a central area until shortly before their flight is due to board,...

The Open Systems Interconnection (OSI) model is a reference model developed by the International Organization for Standardization (ISO) that "provides...

In physics, an open quantum system is a quantum-mechanical system that interacts with an external quantum system, which is known as the environment or...

many other protocols, builds on the Open Network Computing Remote Procedure Call (ONC RPC) system. NFS is an open IETF standard defined in a Request for...

The Amsterdam Call for Action on Open Science is a document that advocates for "full open access for all scientific publications", and endorses an environment...

message and makes a system call to send the message. Packing the parameters is called marshalling. The client's local operating system sends the message...

The Open Sound System (OSS) is an interface for making and capturing sound in Unix and Unix-like operating systems. It is based on standard Unix devices...

of blood vessels. Many invertebrates such as arthropods have an open circulatory system with a heart that pumps a hemolymph which returns via the body...

is well integrated into most Unix-like operating systems. Pipes are created using the pipe system call, which creates a new pipe and returns a pair of...

positively highlighting the new omnidirectional movement system. Like previous entries in the Call of Duty series, Black Ops 6 is a first-person shooter...

a file from a directory. System calls (which are sometimes wrapped by libraries) enable applications to create, delete, open, and close files, as well...

calls to an operating system, see System call. A Supervisor Call instruction (SVC) is a hardware instruction used by the System/360 family of IBM mainframe...

the environment, a thermodynamic system may be an isolated system, a closed system, or an open system. An isolated system does not exchange matter or energy...

OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing...

Open energy system database projects employ open data methods to collect, clean, and republish energy-related datasets for open use. The resulting information...

game system is based on Chaosium's Basic Role-Playing (BRP) with additions for the horror genre. These include special rules for sanity and luck. Call of...