Cis155-Operating-Systems

Apr 30th, 2015
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Strayer University
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An operating system (OS) is a software program that controls and coordinates computer hardware to communicate and operate with computer software acting as a resource allocator and manager.There are many different types of operating systems and most will fall into one of the following categories: GUI (Graphic Unit Interface); Multi-user; Multiprocessing; and multitasking. Operating Systems are written in a variety of programming languages such as C, C++, UNIX, MS-DOS and many others including Linux.A mobile operating system (mobile OS) is the operating system that combines the features of a personal computer operating systems with mobile devices such as smartphones, tablet, or other types of mobile devices such as a personal digital assistant (PDA).

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Operating Systems Lisa K. St. ClairStrayer UniversityCIS155 October 4, 2015Professor Elhag IbrahimOperating Systems An operating system (OS) is a software program that controls and coordinates computer hardware to communicate and operate with computer software acting as a resource allocator and manager. There are many different types of operating systems and most will fall into one of the following categories: GUI (Graphic Unit Interface); Multi-user; Multiprocessing; and multitasking. Operating Systems are written in a variety of programming languages such as C, C++, UNIX, MS-DOS and many others including Linux. A mobile operating system (mobile OS) is the operating system that combines the features of a personal computer operating systems with mobile devices such as smartphones, tablet, or other types of mobile devices such as a personal digital assistant (PDA). The Early YearsThe earliest electronic digital computers did not have operating systems. Programs were often entered one bit at time on rows of mechanical switches (plug boards). The General Motors Research Laboratories implemented the first operating systems in early 1950's for their IBM 701. These were called single-stream batch processing systems because programs and data were submitted in groups or batches. Programs were punched into cards that were usually copied to tape for processing. When the computer finished one job, it would immediately start the next one on the tape. Mult

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