computer science

Real Time Operating System Real-time systems are defined as those systems in which the correctness of the system depends not only on the logical result produced, but also the time at which the result produced. User convenience and resource utilization are secondary concern to these systems. Real time systems have many events that must be accepted and processed in a short time or within certain deadline. Such applications include: Rocket lunching Flight control Robotics Telephone switching equipment Fire and smoke sensor etc. Real time systems are classified into two categories: Hard Real Time System Soft Real Time System Hard Real Time System A system is said to be hard real time system if the deadline is not met the system is said to have failed. Penalty due to missing deadline is a higher order of magnitude than the reward in meeting the deadline The task deadlines are of the order of micro or milliseconds. Examples: : Industrial contro

What Are the Five Generations of Computers? In this Webopedia Study Guide, you'll learn about each of the five generations of computers and the advances in technology that have led to the development of the many computing devices that we use today. Our journey of the five generations of computers starts in 1940 with vacuum tube circuitry and goes to the present day — and beyond —   with artificial intelligence (AI) systems and devices. Let's take a look... Five Generations of Computers Checklist Getting Started: Key Terms to Know First Generation: Vacuum Tubes Second Generation Transistors Third Generation Integrated Circuits Fourth Generation Microprocessors Fifth Generation Artificial Intelligence

The following list shows the reserved words in C++. These reserved words may not be used as constant or variable or any other identifier names. asm else new this auto enum operator throw bool explicit private true break export protected try case extern public typedef catch false register typeid char float reinterpret_cast typename class for return union const friend short unsigned const_cast goto signed using continue if sizeof virtual default inline static void delete int static_cast volatile do long struct wchar_t double mutable switch while dynamic_cast namespace template