Programming languages

The Language of Computers

• Computers use a language of 1's and 0's based on the binary number system
• Computers use a language of 1's and 0's because their operation is based on devices that operate best in a two state mode
• This computer language is often referred to as machine language.

The Language of Humans

• Human do not use a language of 1's and 0's for everyday verbal communication
• Human speak in what is know as natural language

How Human communicate with computers?

• In the early days of computer programming, programmers had to learn the combinations of 1's and 0's that represented commands to the computer.
• Since those days programming languages have been developed to bridge the gap between human language and computer language.
• Programming language symbolically represent the 1's and 0's that computer understand.
• For example a single statement in C++ can represent many machine language instruction.

High level and low level programming languages

• Low level programming languages are languages which are closer to the actual machine language that computers understand
• High level programming languages are languages which are closer to the natural speak that human use.

Programming Language