Computer Software

Computer software or just software is a collection of computer programs and data that the instructions telling a computer what to do and how it is done. Software refers to one or more computer programs and data in the memory unit of the computer kept for some purposes. In other words, a number of software programs, procedures, algorithms and their documentation with the operation of a data processing system is concerned. Program software performs the function of the program is implemented, either by direct action instruction to the computer hardware or by serving as input to another piece of software. The term was coined to contrast it to the old concept of hardware (ie physical devices). Unlike hardware, software "can not be touched." Software is sometimes used in a narrow sense, meaning, application software only. Sometimes, the term includes data that is not traditionally associated with computer related, such as film, tapes and vinyl records.

Computer software is so called to distinguish it from computer hardware, which the physical connections and devices necessary to save and run (or run) includes the software to differentiate. At the lowest level, consists of executable code of machine language instructions in the person of a processor. A machine language consists of groups of binary values ​​does processor instructions, the state of the computer from the previous state. Programs are an ordered sequence of commands for changing the state of the computer in a particular order. It is usually in high-level programming languages ​​that use simpler and more efficient for the people have written (closer to natural language) than machine language. High-level languages ​​are compiled or interpreted into machine language object code. Software can also be written in assembly language, essentially, a mnemonic alphabet representation of a machine language using a natural language. Assembly code into object code must be on an assembler can be mounted.

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