is a set of instructions that tells a how to operate.

This is in to , which is the foundation upon which the is constructed and which actually conducts the .

At the lowest level, executable code consists of machine language instructions supported by an individual processor—typically a central processing unit () or a graphics processing unit (GPU).

Machine language consists of groups of binary values signifying processor instructions that change the of the from its preceding .

For example, an instruction may change the value stored in a particular storage location in the —an effect that is not directly observable to the user.

An instruction may also invoke one of many input or output operations, for example, displaying some text on a screen; causing changes that should be visible to the user.

The processor executes the instructions in the order they are provided, unless it is instructed to “jump” to a different instruction, or is interrupted by the .

As of 2015, most personal computers, smartphone devices, and servers have processors with multiple execution units or multiple processors performing computation together, and has become a much more concurrent activity than in the past.

High-level languages are used to write the vast majority of .

Because they are more similar to normal languages than machine languages, they are easier and more efficient for programmers to use.

A compiler, interpreter, or a mix of the two is used to transform high-level languages into machine language.

can also be in a low-level assembly language, which has a close relationship to the 's machine language instructions and is converted into machine language by an assembler.

Last Updated on 2 years by pinc