The _________ defines the system call interface to the operating system and the hardware resources and services available in a system through the user instruction set architecture.
A)HLL
B)API
C)ABI
D)ISA

Question

Quizplus · Accepted Answer

The acronym ABI stands for Application Binary Interface, which defines the system call interface and establishes the binary compatibility between two executable programs. It specifies how functions, variables, and libraries must be implemented and accessed by the program in the machine code level. The API (Application Programming Interface) is a higher-level of abstraction and defines the set of protocols, methods, and tools for building software applications, while the HLL (High-Level Language) refers to the programming language syntax and semantics used to write software code. The ISA (Instruction Set Architecture) refers to the hardware design aspects of a processor that define how instructions are encoded, executed, and accessed by the computer.

The _________ Defines the System Call Interface to the Operating