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Thursday, February 26, 2015

HTML Explained


Although many people may have heard of HTML, very few know what it is and why it is used. This article will attempt to uncover the basics of HTML, detailing and defining its components, while also explaining how HTML works and what it is designed to do.  However, before I go into detail I would first like to give a brief history of HTML, and explain why its creation was crucial to the development of Web pages.
                Tim Berners-Lee, inventor of the World Wide Web, invented HTML as the Webs publishing language. The article “A history of HTML” talks about how Lee came up with the idea of HTML, and how he believed it would potentially benefit those with access to the Web. The article states, “Tim had the idea of enabling researchers from remote sites in the world to organize and pool together information. But far from simply making available a large number of research documents as files that could be downloaded to individual computers, he suggested that you could actually link the text in the files themselves” .In other words, Lee wanted to create a tool that would allow cross-references from one research paper to another. The result of such a tool would mean that while reading one research paper, you could quickly display part of another paper that holds relevant text or diagrams. The article further explains how “Tim thought [this] could be done by using some form of hypertext, some way of linking documents together by using buttons on the screen, which you simply clicked on to jump from one paper to another” (cite). However, hypertext, which had already existed “could only be made to files on the same computer” (cite). Lee, who was interested in transferring files to computers across the world, thought of inventing a global hypertext system. The result was the development of his own software, known as HTTP-used for retrieving other documents text via hypertext links. With further development and years of improvement HyperText Markup Language, commonly referred to as HTML was developed in 1990 by scientist Tim Berners-Lee. With this invention it is now possible for text files to be transferred between computers, and the creation of Web pages are now possible. Now that you have a history of HTML and how it came into existence, the remainder of this paper will explain what HTML is.
             The website HTML Source is effective in explaining what HTML is, how it works, and what it can do. According to the webpage which features an article titled “What is HTML” “[HyperText MarkUp Language] is a computer language devised to allow website creation” (cite). The article breaks down the meaning of HyperText Markup Language stating “HyperText is the method by which you move around on the web-by clicking on special text called hyperlinks which bring you to the next page. The fact that it is hyper just means it is not linear — i.e. you can go to any place on the Internet whenever you want by clicking on links. Markup is what HTML tags do to the text inside them. They mark it as a certain type of text (italicized text, for example). HTML is a Language, as it has code-words and syntax like any other language” (cite). The article also effectively explains how HTML works. The article explains that HTML consists of a series of short codes which are typed into a text-file by the site author. These short codes are the tags. After the tags are created the text is then saved as an html file, and viewed through a browser, like Internet Explorer or Netscape Navigator. The browser reads the file and translates the text into a visible form, thus rendering the page as the author had intended.

            Hypertext Markup Language continues to expand and improve so that people can continue to have the best Web experience. Overall, HTML is the language used to create documents on the Web. It is also used to define the structure and layout of a web page. In addition to defining the structure of a page, HTML also defines how a page looks and how special functions work. This is done through the use of tags which have attributes. For instance, the tag <p> means paragraph break. These tags, however, are hidden from viewers of a website as their purpose is to dictate how a page would look to the person viewing the page.


Thursday, February 12, 2015

CPU Socket

Is a single connector between a microprocessor and motherboard. A CPU socket is a distinct mount used only for the CPU on the motherboard to ensure correct circuit chip insertion. It facilitates CPU access and prevents damage when a unit is inserted or removed. A CPU socket also has a lock to prevent CPU movement, and its design helps secure heat sink placement above the CPU.

Southbridge Chipset

Southbridge is an Intel chipset that manages the basic forms of input/output ( I/O ) such as Universal Serial Bus ( USB ), serial , audio, Integrated Drive Electronics ( IDE ), and Industry Standard Architecture ( ISA ) I/O in a computer.


Northbridge Chipset

An Intel chipset that communicates with the computer processor and controls interaction with memory, the Peripheral Component Interconnect (PCI) bus, Level 2 cache, and all Accelerated Graphics Port (AGP) activities. Northbridge communicates with the processor using the front side bus (FSB). Northbridge is one part of a two-part chipset called Northbridge/Southbridge. Southbridge handles the input/output (I/O) functions of the chipset.


CMOS Battery

CMOS battery stands for complementary metal-oxide-semiconductor. Is the term usually used to describe the small amount of memory on a computer motherboard that stores the BIOS settings.


ATX Connector


This connector is one of the largest connectors inside a computer that connects the computer power supply to an ATX style motherboard.

IDE

Stands for Integrated Drive Electronics is more commonly known as ATA or Parallel ATA (PATA) and is a standard interface for IBM compatible hard drives. IDE is different from the Small Computer Systems Interface (SCSI) and Enhanced Small Device Interface (ESDI) because its controllers are on each drive, meaning the drive can connect directly to the motherboard or controller.


FDD Connector

FDD stands for floppy disk drive. Although most computers no longer use floppy drives, the FDD connector is still present on many motherboards. The FDD connector contains 34-pins, and uses a FDD ribbon cable to connect to a 3 ½" floppy disk drive.

AGP Slot

AGP stands for "Accelerated Graphics Port." AGP is a type of expansion slot designed specifically for graphics cards.



Ram Slot

RAM slots are vertical slots, typically numbering three or four, which usually are located at the  upper-right corner of the motherboard.


PCI Slot

PCI Slot stands for Peripheral Component Interconnect. It is a hardware bus designed by Intel and used in both PCs and Macs. The PCI bus serves as a connection between your computer's motherboard and any connected hardware, transmitting data and power between your computer and the device.

Testing my course Blog-2

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Testing my course Blog-1

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