Search results
Results from the WOW.Com Content Network
Often, one of these modules is a library or operating system facility, and the other is a program that is being run by a user. An ABI defines how data structures or computational routines are accessed in machine code , which is a low-level, hardware-dependent format.
Binary-code compatibility (binary compatible or object-code compatible) is a property of a computer system, meaning that it can run the same executable code, typically machine code for a general-purpose computer central processing unit (CPU), that another computer system can run. Source-code compatibility, on the other hand, means that ...
Dynamic loading is a mechanism by which a computer program can, at run time, load a library (or other binary) into memory, retrieve the addresses of functions and variables contained in the library, execute those functions or access those variables, and unload the library from memory.
Machine code intended for a hardware architecture can be run using a virtual machine. This is often used when the intended architecture is unavailable, or among other uses, for running multiple copies. Sandboxing: While some types of sandboxes rely on operating system protections, an interpreter or virtual machine is often used. The actual ...
A command-line interface (CLI) is an operating system shell that uses alphanumeric characters typed on a keyboard to provide instructions and data to the operating system, interactively. For example, a teletypewriter can send codes representing keystrokes to a command interpreter program running on the computer; the command interpreter parses ...
In multitasking operating systems, processes (running programs) need a way to create new processes, e.g. to run other programs. Fork and its variants are typically the only way of doing so in Unix-like systems. For a process to start the execution of a different program, it first forks to create a copy of itself.
In a multi-core (multiple processor) system, the piped commands may literally be executing at the same time, otherwise the scheduler in the operating system time-slices between them. Given a command, e.g., " a | b ", the shell creates a pipe , then starts both a and b with stdio for the two commands redirected so that a writes its stdout into ...
Operating systems provide common services, such as an interface for accessing network and disk devices. This enables an application to be run on different hardware without needing to be rewritten. [15] Which services to include in an operating system varies greatly, and this functionality makes up the great majority of code for most operating ...