Which of the following programs give instructions about operations inside the computer?
System software programs give instructions about operations inside the computer.
The term was coined to differentiate these instructions from hardware—i.e., the physical components of a computer system. A set of instructions that directs a computer's hardware to perform a task is called a program, or software program. The two main types of software are system software and application software.
System software is computer software designed to provide a platform to other software. Examples of system software include operating systems like macOS and Windows, computational science software, game engines, industrial automation, and software as a service applications.
In computer science, an instruction is a single operation of a processor defined by the processor instruction set. The size or length of an instruction varies widely, from as little as 4-bits in some microcontrollers to many as multiples of a bytes in some very long instruction word (VLIW) systems.