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Definitions from the Sharpened Glossary
Gateway
A gateway is either hardware or software that acts as a bridge between two networks so that data can be transferred between a number of computers. For example, when you send an e-mail to a friend or when you access a Web site, there is a gateway that allows the connection take place. Often, your connection to a Web site will involve many smaller connections to other servers along the way. In these cases, a number of gateways are used.
GIF
Abbreviation for Graphics Interchange Format. GIF images are the most common type of image found on the Web. GIF images are limited to 256 colors. GIF is often used for logos, banners and computer-generated art. GIF images have the .gif extension.
Gigabyte
A gigabyte consists of roughly 1 billion bytes. To be exact, there are 1024 megabytes, or 1,073,741,824 bytes in a gigabyte, but 1 billion is a much easier number to remember. Because of the large size of today's hard disks, storage capacity is usually measured in gigabytes.
Abbreviation: "GB".
Google Dance
The term Google Dance has often been used to describe the index update of the Google search engine. Google's index update occures on average once per month. During an index update there is significant movement in search results and Google shows new backward links for pages.
GPU
Stands for "Graphics Processing Unit." Like the CPU (Central Processing Unit), it is a single-chip processor. However, the GPU is used primarily for computing 3D functions. This includes things such as lighting effects, object transformations, and 3D motion. Because these types of calculations are rather taxing on the CPU, the GPU can help the computer run more effienciently.
GUI
Stands for "Graphical User Interface," and is pronounced "gooey." It refers to the graphical interface of a computer that allows users to click and drag objects with a mouse instead of entering text at a command line. Two of the most popular operating systems, Windows and the Mac OS, are GUI-based. The graphical user interface was first introduced to the public by Apple with the Macintosh in 1984. However, the idea was actually taken from an earlier user interface developed by Xerox.
Hacker
While this term originally referred to a clever or expert programmer, it is now more commonly used to refer to someone who can gain unauthorized access to other computers. A hacker can "hack" his or her way through the security levels of a computer system or network. This can be as simple as figuring out somebody else's password or as complex as writing a custom program to break another computer's security software. Hackers are the reason software manufacturers release periodic "security updates" to their programs. While it is unlikely that the average person will get "hacked," some large businesses and organizations , mainly web hosting services receive multiple hacking attempts a day.
Hard Disk
This is where all the data in your computer is stored. It is where all your files and folders are physically located. The data is stored on a stack of disks that are mounted inside a solid encasement. These disks spin extremely fast (typically at either 5400 or 7200 RPM) so that data can be accessed immediately from anywhere on the drive. The data is stored on the hard drive magnetically, so it stays on the drive even after the power supply is turned off. At Newista HarDisk are SCSI(10.000rpm) Raid0(make them works 2 x faster which can be tought 20k rpm Disks)
Hidden Text
Text that is visible to the search engines but is invisible to humans. It is mainly accomplished by using text in the same color as the background color of the page. It is primarily used for the purpose of including extra keywords in the page without distorting the aesthetics of the page. This practice is considered spam by all major search engines since it is used to artificially increase keyword density.
Hit
A single request from a web browser for a single item from a web server. Thus in order for a web browser to display a page that contains 3 graphics, 4 'hits' would occur at the server: 1 for the HTML page, and one for each of the 3 graphics.
HTML
Abbreviation for HyperText Markup Language. HTML is used to format hypertext documents for display by browsers compatible with the Web.
Hypertext Link
A way of presenting information online with connections between one piece of information and another. These connections are called hypertext links. Thousands of these hypertext links enable you to explore additional or related information throughout the online documentation.
Hyper-Threading
Hyper-threading is a technology developed by Intel Corporation. It is used in certain Pentium 4 processors and all Intel Xeon processors. Hyper-threading technology, commonly referred to as "HT Technology," enables the processor to execute two threads, or sets of instructions, at the same time. Since hyper-threading allows two streams to be executed in parallel, it is almost like having two separate processors working together. While hyper-threading can improve processing performance, software must support multiple processors to take advantage of the technology. Fortunately, recent versions of both Windows and Linux support multiple processors and therefore benefit from hyper-threading. For example, a video playing in Windows Media Player should not be slowed down by a Web page loading in Internet Explorer. Hyper-threading allows the two programs to be processed as separate threads at the same time. However, individual programs can only take advantage of Intel's HT Technology if they have been programmed to support multiple processors.
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