Lecture 11 - Software - Lecture 11 Computer Software What...

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Lecture 11 - Computer Software What is computer hardware? Computer hardware is the physical computer itself and its physical peripherals. What is computer software? These are programs with associated data that provide users with applications by commanding the hardware to perform specific tasks (software essentially tells the hardware what to do). Computer software can be considered to be the “soul” of a computer. What are the two types of software? 1. System software: This type of software takes care of a computer’s functionality. One of the most important types of system software is called an operating system. An operating system allows users to communicate with the computer, and it application software to run on the computer. 2. Application software: These are any programs that run on top of system software An easy way to look at this concept: iOS is the system software that runs on your iDevices; the Apps that you install (or even apps that come pre-installed like Safari) are the applications software. Windows is the system software; programs like calculator, Internet Explorer, Paint, and Photoshop are applications software. Who invented software? Like other aspects of computing, it is difficult to state that a single person invented computer. Here is a time line of events that led to modern software. Renaissance Period (1300s-1600s ): Clockwork devices (like the Mechanical Monk) were created. These devices contained “early software” in that they performed certain preprogrammed functions (in the case of the Mechanical Monk, it walked around and blinked and kissed its cross). It should be noted that this “early software” is not the same as creating software today through a programming language on an electric
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computer, rather this “early software” was highly mechanical and it contained the concept of programming which is the basic idea of software. Furthermore, this “early software” that ran clockwork devices could not be reworked hence clock work devices could not be reprogrammed.
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  • Fall '12
  • ZbigniewStachniak
  • System software, Computer program

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