IBM Mainframe

Let me try to give you a short (it will not be very short) and simple introduction to TCP/IP. I will try to keep it as simple as possible (it may to be too simple for some of you, but if you need all the TCP/IP details, you need to go to your local bookstore and buy on of these books with 1000+ pages on TCP/IP). I will also not bother you with the history of TCP/IP and the Internet, unless required for the understanding of the setup.

IP-address:

Each Ethernet board worldwide has a unique Ethernet-address, it is a 48 bit number
(the first 24 bits indicate the manufacturer, the last 24 bits are a unique number for each
Ethernet board/controller-chip assigned by the manufacturer). This is also called the MAC-address.

Have you ever thought if it was possible to be able to transfer data between two servers without having to open too many ports on the firewall? Yes, it is possible with the help of the latest development that comes from the World Wide Web Consortium and Microsoft called SOAP. SOAP is a new protocol that is already creating waves in the world of distributed computing.

The word SOAP stands for Simple Object Access Protocol. SOAP was originally developed by Microsoft, IBM, DevelopMentor and UserLand Software and was then recommended by Internet Engineering Task Force (IETF). SOAP is used to communicate between applications via HTTP using XML or extensible Markup Language. Soap is a protocol that is neither a distributed object system nor an RPC system or even a Web application, but a messaging format for machine-to-machine construction. Soap applications communicate with each other over the internet.

What is web hosting?

Web hosting is the service provided by an ISP to publish your web pages on the internet. In order for your web pages to be visible on the internet, a web server (hardware and software) must be permanently connected to the internet so that it can send pages to people who request them.

In it's simplest form of sending HTML pages when required, web hosting is not complicated or expensive, but the modern trend is to build more sophisticated web sites with dynamic (automatically changing) content. Dynamic content sites are made possible by web servers able to execute scripting computer languages such as ASP, PHP or PERL. In most cases scripting languages also require access to some form of database to retrieve and store information like catalogue items, user names and passwords and so on.

The role of your ISP is to maintain the web server, keep it secure (protect your site from malicious damage or viruses), keep it online on the internet, and to provide you with technical support and advice and faq pages like this one.

Internet Intruders are unwanted software that is installed while surfing the Internet, and that typically uses the Internet in the process of exploiting the user and the user's machine. Typically such software is installed without the user's full awareness of the consequences of such an install (although the user might have been given some notice of what would happen). Such software is typically difficult to manually detect, and difficult to remove. It usually compromises some combination of the user's privacy, the confidentiality of the user's information, or the user's productivity. Productivity is compromised when frequent ads popup, when bandwidth and storage space is consumed, when pages load more slowly, etc.

Trojan:

In computers, a Trojan horse is a program in which malicious or harmful code is contained inside apparently harmless programming or data in such a way that it can get control and do its chosen form of damage, such as ruining the file allocation table on your hard disk, or modifying your registry keys, which can cripple and even stop your computer's normal functions. In one celebrated case, a Trojan horse was disguised as an antivirus program that was supposed to find and destroy computer viruses, which is the most insidious type of Trojan horse; a program claiming to rid your computer of viruses but instead introduces viruses onto your computer. A Trojan horse may also be widely redistributed as part of a computer virus. A worm was carried in an attachment file called "PentagonSecret.xls.exe" and the e-mail’s body text asked: "Do you believe you are safe from the Pentagon of the E.U? Just look this data and you will be surprised".

1. What determines the software price? Is it Per Seat or Per User or Per Processor?

The cost of software is determined in many ways. The two most popular ways are Per Seat or Per Concurrent User. Per Seat is determined by how many seats in your business will be using the software at any given time. On the other hand, Per Concurrent User is based on a set amount of users that can access the software at one time. (Example: concurrent users means a program with a license for 5 users can be installed on 100 machines but only a maximum of 5 people can use the system at once.) Per Processor is calculated on how many machines (PC?s or servers) the software will be running on. Many larger enterprise software applications use this method to determine their prices.

RSS is a Web content syndication format.

Its name is an acronym for Really Simple Syndication.

RSS is a dialect of XML. All RSS files must conform to the XML 1.0 specification, as published on the World Wide Web Consortium (W3C) website.