Exercise_Week 10_a

Parallel Processing, Semaphore, Microsoft .Net Framework, Microsoft .Net, E-commerce and Mobile Commerce

Parallel Processing: Parallel Processing is simultaneous use of more than one computer or processor to solve a problem. The processors may communicate in order to be able to cooperate in solving a problem or they may run completely independently, possibly under the control of another processor which distributes work to the others and collects results from them.

Semaphore: A semaphore is an integer counter associated with a thread wait queue. Two atomic operations are available on semaphores: P (or pass) and V (or free). The P operation decrements the counter, and blocks the thread if the counter has reached a negative value. The V operation increments the counter and wakes up a thread, if any, in the semaphore wait queue.

Microsoft .Net Framework: The Microsoft .NET Framework is a software component which can be added to the Microsoft Windows operating system. It provides a large body of pre-coded solutions to common program requirements, and manages the execution of programs written specifically for the framework. The .NET Framework is a key Microsoft offering, and is intended to be used by most new applications created for the Windows platform.

Microsoft .Net: Microsoft .Net is an umbrella term that applies to a collection of products and technologies from Microsoft. All have in common a dependence on the Microsoft .NET Framework, a component of the Windows operating system.

E-commerce: E-commerce (electronic-commerce) refers to business over the Internet. Web sites such as Amazon.com, Buy.com, and eBay are all e-commerce sites. The two major forms of e-commerce are Business-to-Consumer (B2C) and Business-to-Business (B2B). While companies like Amazon.com cater mostly to consumers, other companies provide goods and services exclusively to other businesses. The terms "e-business" and "e-tailing" are often used synonymously with e-commerce.

Mobile Commerce: Mobile Commerce describes business processes which are integrated in a mobile device. Mobile commerce is exactly the same as e-commerce except that the access mechanism is via a wireless phone or terminal rather than the fixed telephone network. The security aspect of transactions is addressed by the encryption inherent in the GSM specification. Internet access is being addressed by initiatives such as the Wireless Application Protocol (WAP) which provides an easy-to-use system for Internet access from mobile terminals.

Reference:

• Klenke, R.H.; Williams, R.D.; Aylor, J.H., “Parallel-processing techniques for automatic test pattern generation”, IEEE Computer, Volume 25, Issue 1, Jan. 1992 Page(s):71 – 84

• Rosen, Anita. 2000. The E-commerce Question and Answer Book: A Survival Guide for Business Managers. American Management Association

• Lamont, Douglas. 2001. Conquering the Wireless World: The Age of m-Commerce. United Kingdom: Capstone Publishing Inc.

• Young Patrick, Thomas Theys 1999. Capital Market Revolution: The Future of Markets in an Online World. Great Britain: Pearson Education Limited.