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In computer programming, assembly language (alternatively assembler language [1] or symbolic machine code), [2] [3] [4] often referred to simply as assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence between the instructions in the language and the architecture's machine code instructions. [5]
In Windows NT operating systems, a Windows service is a computer program that operates in the background. [1] It is similar in concept to a Unix daemon . [ 1 ] A Windows service must conform to the interface rules and protocols of the Service Control Manager , the component responsible for managing Windows services.
Commonly used assemblers include: x86 assembly languages (used in Intel and AMD processors) [10] ARM assembly language (used in mobile devices) [10] MIPS assembly language (used in gaming consoles) [10] PowerPC assembly language [10] LC-3 assembly language (used primarily in education to program the LC-3 computer) [9]
A high-level overview of the Linux kernel's system call interface, which handles communication between its various components and the userspace. In computing, a system call (commonly abbreviated to syscall) is the programmatic way in which a computer program requests a service from the operating system [a] on which it is executed.
In computer programming, machine code is computer code consisting of machine language instructions, which are used to control a computer's central processing unit (CPU). For conventional binary computers, machine code is the binary representation of a computer program which is actually read and interpreted by the computer. A program in machine ...
Systems programming, or system programming, is the activity of programming [1] computer system software.The primary distinguishing characteristic of systems programming when compared to application programming is that application programming aims to produce software which provides services to the user directly (e.g. word processor), whereas systems programming aims to produce software and ...
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Offering 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. [12] Application software runs on top of the operating system and uses the computer's resources to perform a task. [13]