What is HTML?

HyperText Markup Language (HTML) is the main markup language for displaying web pages and other information that can be displayed in a web browser. HTML is written in the form of HTML elements consisting of tags enclosed in angle brackets (like ), within the web page content. HTML tags most commonly come in pairs like

and

, although some tags, known as empty elements, are unpaired, for example . The first tag in a pair is the start tag, the second tag is the end tag (they are also called opening tags and closing tags). In between these tags web designers can add text, tags, comments and other types of text-based content. The purpose of a web browser is to read HTML documents and compose them into visible or audible web pages. The browser does not display the HTML tags, but uses the tags to interpret the content of the page. HTML elements form the building blocks of all websites. HTML allows images and objects to be embedded and can be used to create interactive forms. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. It can embed scripts in languages such as JavaScript which affect the behavior of HTML webpages. Web browsers can also refer to Cascading Style Sheets (CSS) to define the appearance and layout of text and other material. The W3C, maintainer of both the HTML and the CSS standards, encourages the use of CSS over explicit presentational HTML markup.[1] http://en.wikipedia.org/wiki/HTML

ASCII Table

ASCII Table and Description ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@' or an action of some sort. ASCII was developed a long time ago and now the non-printing characters are rarely used for their original purpose. Below is the ASCII character table and this includes descriptions of the first 32 non-printing characters. ASCII was actually designed for use with teletypes and so the descriptions are somewhat obscure. If someone says they want your CV however in ASCII format, all this means is they want 'plain' text with no formatting such as tabs, bold or underscoring - the raw format that any computer can understand. This is usually so they can easily import the file into their own applications without issues. Notepad.exe creates ASCII text, or in MS Word you can save a file as 'text only'
~Yahoo answers

Computer System

Computer Basics CPU The CPU (stands for Central Processing Unit) is the brains behind your computer. The CPU is responsible for performing calculations and tasks that make programs work. The faster the CPU, the quicker programs can process computations. RAM A fast CPU is useless without an adequate amount of RAM (stands for Random Access Memory). RAM is usually referred to as a computer's "memory" -- meaning that it stores information that is used by running programs and applications. More memory lets you run more applications at the same time without degrading your system's performance. Hard Disk Drive The hard disk drive ( HDD) of the computer is where permanent information is stored. Documents, databases, spreadsheets, and programs are all stored on the hard disk. The larger the hard disk, the more you can fit on the drive. The size of the HDD does not affect the speed at which a program can run, but the HDD speed can affect how fast you can access your files. Optical Drives (CD,CD-R,CD-RW,DVD,DVD-R,DVD-RW) Optical drives are more commonly known as CD and DVD drives. They are considered "optical" because the drive uses a laser to see the data etched onto the plastic disk. All computers now come with some form of CD drive. CD-R and CD-RW drives are becoming a new standard in portable data storage. The "R" in CD-R stands for "recordable." This type allows you to "burn" information to the CD only once. The "RW" in CD-RW stands for "rewritable." These can be rewritten several times over, allowing you to delete and add files. Most software you buy comes on a CD-ROM, and you'll use your CD or DVD drive to read it and copy the software onto your computer. Floppy Drive While floppy drives can come in handy for transfering small files from one computer to another, it isn't generally a big concern if your computer has on or not. The Internet makes it quite easy to transfer files via e-mail or some form of online storage. Quite a few computer sellers now don't even bother including a floppy drive. But because they don't really add to the overall cost of a computer, it doesn't hurt to purchase one with a floppy drive. Zip drives are a form of floppy disk that can hold hundreds of megabytes of memory, but their popularity has declined with the cheaper and higher capacity CD-RW disks mentioned above. As opposed to the hard disk drive, the standard floppy drive reads removable diskettes. Most computers come standard with a 3.5' floppy drive, but internal Zip drives and SuperDisk drives are becoming more and more commonplace. While the Internet is replacing them (much to many users' chagrin, Apple's iMac comes without a floppy drive), floppy drives are still a nice way to share a file quickly with the person next door or to backup data. Video Card The video card is a board that plugs into the PC motherboard to give it display capabilities. New video cards come with their own RAM and processor to help speed up the graphics display. Many computers come with video chips built-in, making it uncessary to buy a separate video card, unless the computer is going to be used to do higher-end multimedia work or play video games. Sound Card Like video cards, sound cards are expansion boards used for enabling a computer to manipulate sound. Most sound cards give you the power to plug in speakers and a microphone. Some even give you the jacks for hooking your computer up to a common stereo. As with video cards, many computers come with sound chips, making it unnecessary to buy a separate card, unless you need higher sound quality for your work.
~Yahoo answers

A BRIEF COMPUTER HISTORY

The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage. He designed the Analytical Engine and it was this design that the basic framework of the computers of today are based on. Generally speaking, computers can be classified into three generations. Each generation lasted for a certain period of time,and each gave us either a new and improved computer or an improvement to the existing computer. First generation: 1937 – 1946 - In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC). In 1943 an electronic computer name the Colossus was built for the military. Other developments continued until in 1946 the first general– purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built. It is said that this computer weighed 30 tons, and had 18,000 vacuum tubes which was used for processing. When this computer was turned on for the first time lights dim in sections of Philadelphia. Computers of this generation could only perform single task, and they had no operating system. Second generation: 1947 – 1962 - This generation of computers used transistors instead of vacuum tubes which were more reliable. In 1951 the first computer for commercial use was introduced to the public; the Universal Automatic Computer (UNIVAC 1). In 1953 the International Business Machine (IBM) 650 and 700 series computers made their mark in the computer world. During this generation of computers over 100 computer programming languages were developed, computers had memory and operating systems. Storage media such as tape and disk were in use also were printers for output. Third generation: 1963 - present - The invention of integrated circuit brought us the third generation of computers. With this invention computers became smaller, more powerful more reliable and they are able to run many different programs at the same time. In1980 Microsoft Disk Operating System (MS-Dos) was born and in 1981 IBM introduced the personal computer (PC) for home and office use. Three years later Apple gave us the Macintosh computer with its icon driven interface and the 90s gave us Windows operating system. As a result of the various improvements to the development of the computer we have seen the computer being used in all areas of life. It is a very useful tool that will continue to experience new development as time passes.
~http://people.bu.edu/baws/brief%20computer%20history.html

Computer Network

A computer network, or simply a network, is a collection of computers and other hardware components interconnected by communication channels that allow sharing of resources and information.[1] Where at least one process in one device is able to send/receive data to/from at least one process residing in a remote device, then the two devices are said to be in a network. Simply, more than one computer interconnected through a communication medium for information interchange is called a computer network. Networks may be classified according to a wide variety of characteristics, such as the medium used to transport the data, communications protocol used, scale, topology, and organizational scope. Communications protocols define the rules and data formats for exchanging information in a computer network, and provide the basis for network programming. Well-known communications protocols include two Ethernet, a hardware and link layer standard that is ubiquitous in local area networks, and the Internet protocol suite, which defines a set of protocols for internetworking, i.e. for data communication between multiple networks, as well as host-to-host data transfer, and application-specific data transmission formats. Computer networking is sometimes considered a sub-discipline of electrical engineering, telecommunications, computer science, information technology or computer engineering, since it relies upon the theoretical and practical application of these disciplines.
~wikipedia.org

Netiquette

Netiquette /net-i-ket/, Noun: 1. The social code of network communication. 2. The social and moral code of the internet based on the human condition and Golden Rule of Netiquette. 3. A philosophy of effective internet communication that utilizes common conventions and norms as a guide for rules and standards. Above is the dictionary netiquette definition. It defines the concept of internet etiquette and online ethics. The theory of netiquette rules is the Golden Rule of Netiquette, do unto others online as you would have done to you. The rules of netiquette are net etiquette and internet ethics rules for effective communication. The core rules of netiquette are proper netiquette applied to everyday internet use. The internet has its own culture, Netiquette. The cyber etiquette and digital manners between users are the rules of netiquette. They are cultural norms for status updates, email messages, privacy settings, and lists. Internet users are human beings, so Netiquette is human, it takes into account the context of how information is shared. This applies the human condition to the content of the data. The core rules of netiquette are the regulatory parameters. These are the most agreed upon rules. All other rules on this site are in their initial stages of development. Please be advised that the content of the pages has not been outlined. The site contains standards and reasons. It will be making dramatic changes in content and writing style over the next few months. Netiquette is the social code of the internet because the internet is a network and etiquette is a social code. Internet etiquette, is centered around data and its use. The types of data are: text, audio, graphic, and video. Each website supports these types of data to some degree. Since internet use is new and increasing there are new words to accoma
date its use, cyber words. Netiquette is a cyber word. Proper netiquette is positive. Practice proper netiquette. Visit positive websites and choose online friends who share positive updates. Positive and peaceful effective communication, that's good netiquette.
~http://www.networketiquette.net/