An operating system is a program that acts as an intermediary between the user of a computer and the computer hardware. The purpose of an operating system is to provide an environment in which a user can execute programs in a convenient and efficient manner.
Understanding the evolution of operating systems gives us an appreciation for what an operating system does and how it does it. We trace the development of operating systems from the first hands-on systems, through multiprogrammed and time-shared systems, to current handheld and real-time systems.
The operating system must ensure the correct operation of the computer system. The hardware must provide appropriate mechanisms to prevent user programs from interfering with the proper operation of the system. We describe the basic computer architecture taht makes it possible to write a correct operating system.
The operating system provides certain services to programs and to the users of those programs in order to make their tasks easier. The services differ from one operating system to another, but we identify and explore some common classes of these services.
How To Be a Graphic Designer Without Losing Your Soul Designers are quick to tell us about their sources of inspiration, but they are much less willing to reveal such critical matters as how to find work, how much they charge, and what to do when a client rejects three weeks of work and refuses to pay the bill. How to be a graphic designer without losing your soul addresses the concerns of... Data Mining With Ontologies: Implementations, Findings and Frameworks (Premier Reference) Data mining, also referred to as knowledge discovery in databases (KDD), is a process of finding new, interesting, previously unknown, potentially useful, and ultimately understandable patterns from very large volumes of data. Data mining is a discipline which brings together database systems, statistics, artificial intelligence, machine learning,... Teach Yourself Unix in 24 Hours Sams Teach Yourself UNIX in 24 Hours, Second Edition is designed to take users from novice to accomplished user in just 24 one-hour sessions. Written by experts in the field, Sams Teach Yourself UNIX in 24 Hours, Second Edition starts off with an introduction to UNIX, then covers file handling, pipes and filters, the vi and EMACS text editors,...
WCF 4.5 Multi-Layer Services Development with Entity Framework
WCF is Microsoft's recommended model for building services and Entity Framework is Microsoft's preferred ORM for accessing underlying data storages. Learning WCF and Entity Framework has become essential and critical for every software developer to survive in this SOA world.
WCF and Entity Framework are two powerful yet...
How Spacecraft Fly: Spaceflight Without Formulae The aim of this popular science text is to explain aerodynamic and astrodynamic flight without the use of mathematics, in an informal style, for non-technical readers who are interested in spaceflight and spacecraft.
The book will open with a concise introductory chapter, chronicling the ‘space age’ up to the present, and a brief...