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GHZ
Gigahertz
Gigahertz is a measurement of frequency and 1Ghz is equal to one billion cycles per second.
This term is widely used in computer terms to describe the speed of a Laptops processor.
For example, a Laptop with a processor running at a speed of 2.4Ghz can process 2.4 billion cycles per second.
Gb
Gigabyte
A gigabyte is a unit of measurement equal to 1024 megabytes. This term is usually used to describe the storage capacity of a Laptops hard drive. However, this is then usually rounded down to 1000 megabytes from some companies for example a 60 gigabyte hard drive is labeled as 60,000 megabytes but in digital terms it is actually 60 x 1024 (61440) megabytes.
Graphics Processing Card
Graphics Card / Video Card
A Graphics card is an internal hardware device that controls all the graphical calculations and then displays them on your Laptops monitor. It has it’s own built in RAM so does not use the Laptops system ram giving a far better performance when using graphical applications and gaming.
GIF
Graphics Interchange Format
A GIF is an image format like a JPEG or PNG. A gif image offers a high compression rate and due to this they are relatively small in size. This makes them ideal for web page as will load quickly and use less bandwidth. GIF formats are great for computer graphic pictures such a logo’s etc but do not perform well when used for photo’s.
Google
Google is mainly known as an internet search engine but is also a very large American public corporation and earns most of it’s revenue from both mobile and online advertising such as Googlwe Adwords and Google Adsense. The Google search engine is by far the most widely used ahead of both Yahoo and MSN search.
The companies HQ in California is know as Googleplex and some of you may have heard of a GoogleWhack which is a two word search term (with no quote marks) that returns just one search result.
GPS
Global Positioning System
GPS is a fully functioning Global Navigation Satellite System using 24 satellites orbiting the earth. These satellites transmit precise microwave signals which enables a GPS receiving unit to determine time, direction, speed and even location.
This technology was developed by the US Defense Department and is very accurate and precise.
The system is used in many ways such as the study of earthquakes, map drawing, surveying and of course the very very popular SAT NAV systems found in a lot of today’s motor cars.
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