Computer software

Computer software is most commonly created by computer programmers using a programming language. The programmer writes commands in the programming language that are similar to what someone might use in everyday speech. These commands are called source code. Another computer program called a compiler is then used on the source code, transforming the commands into a language that the computer can understand. The result is an executable computer program, which is another name for software. Computer software, or just software, is the collection of computer programs and related data that provide the instructions telling a computer what to do. We can also say software refers to one or more computer programs and data held in the storage of the computer for some purposes. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software is intangible, meaning it "cannot be touched". Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes, and records.

important of computer

Computer is most important device.we can use many ways  to 
computer. Computer can give us everything we need! for example, a 
reseach project, finding someone in the internet, can get 
you a cyber friend, and for me this is the best storage 
file, you can make a back-up of your file when somebody 
accidentally deleted it. You don't have to retype your file 
again because you have a back-up and it contains the same 
file.A computer can make your work much easier!

introduction of computer

   The first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued to be used in that sense until the middle of the 20th century. From the end of the 19th century onwards though, the word began to take on its more familiar meaning, describing a machine that carries out computations.
    A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format. The first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued to be used in that sense until the middle of the 20th century. From the end of the 19th century onwards though, the word began to take on its more familiar meaning, describing a machine that carries out computations.