Software development has made an incredible progress since it was first launched clearly the entire world has transformed since the first days of computing.And without the early pioneers software development companies and services of today would not be in this progressive state of development they’re experiencing today .so the development of software system has started by Konrad Zuse in 1941 when he worked on (plankalkul)which is the first algorithmic programming language.And In 1952, mathematician Grace Hopper has accompilshed what is called the first compiler. ERMA, the Electronic Recording Method of Accounting was invented in 1959,it’s a method for digitized checking for the Bank of America by creating a computer-readable font.From the year 1962 to 1972 a lot of interactive computer games were invented ,one of these games called space war that was designed by MIT students,another game called “turtle” was made using the LOGO language that’s designed by Seymour Papert.in 1976 Gary Kildall has improved an operating system for personal computers which is CP/M ,this system made one version of a program to run on a variety of computers built around eight-bit microprocessors possible. the basic software for the newly released IBM PC The MS-DOS was estabilished in 1981. Lotus 1-2-3 has been developed in 1982 by Mitch Kapor , writing the software directly into the video system of the IBM PC. Microsoft have announced the release of Word in 1983, it was originally called Multi-Tool Word and windows.The Finnish university student Linus Torvalds has designed linux in 1991 which has become an open source software by 1998. The first iohone ever was released in 2007 and now there are up to 5 generations of iphones .