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Deprecated: Non-static method AL_HELPER::GetRelativeDate() should not be called statically, assuming $this from incompatible context in /home/what/public_html/includes/classes/class.article.php on line 515

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Deprecated: Non-static method AL_HELPER::GetRatingBar() should not be called statically, assuming $this from incompatible context in /home/what/public_html/templates/Bright Light/Panels/ViewArticlePanel.php on line 78

Deprecated: Non-static method AL_HELPER::GetGlossaryTerms() should not be called statically, assuming $this from incompatible context in /home/what/public_html/includes/classes/class.article.php on line 637

Deprecated: Function eregi_replace() is deprecated in /home/what/public_html/templates/Bright Light/Panels/ViewArticlePanel.php on line 360

Deprecated: Non-static method AL_HELPER::ContentHasComment() should not be called statically, assuming $this from incompatible context in /home/what/public_html/templates/Bright Light/Panels/ViewArticlePanel.php on line 547

Deprecated: Non-static method AL_HELPER::ArticleLink() should not be called statically, assuming $this from incompatible context in /home/what/public_html/templates/Bright Light/Panels/ArticleOptionsPanel.php on line 60

Deprecated: Non-static method AL_HELPER::_MakeArticleURLSafe() should not be called statically, assuming $this from incompatible context in /home/what/public_html/admin/includes/classes/class.helper.php on line 453

Deprecated: Non-static method AL_HELPER::_SwapLetters() should not be called statically, assuming $this from incompatible context in /home/what/public_html/admin/includes/classes/class.helper.php on line 419

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Deprecated: Function eregi_replace() is deprecated in /home/what/public_html/templates/Bright Light/Panels/ArticleOptionsPanel.php on line 60

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Deprecated: Function eregi_replace() is deprecated in /home/what/public_html/admin/includes/classes/class.helper.php on line 421

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Deprecated: Function eregi_replace() is deprecated in /home/what/public_html/templates/Bright Light/Panels/ArticleOptionsPanel.php on line 63

Deprecated: Non-static method AL_HELPER::ArticleLink() should not be called statically, assuming $this from incompatible context in /home/what/public_html/templates/Bright Light/Panels/ArticleOptionsPanel.php on line 68

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What is GHz? - GigaHertZ - gigahertz definition, megahertz gigahertz, gigahertz technologies
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What is GHz? - GigaHertZ - gigahertz definition, megahertz gigahertz, gigahertz technologies
By  Super Admin  | Published  11/30/2006 | Internet and Computers | Rating:
What is GHz?

GigaHertZ - One billion cycles per second. High-speed computers have internal clocks rated in GHz, and radio frequency applications transmit in this range.

MegaHertZ - One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1MHz) means some number of bits (16, 32, 64, etc.) are manipulated one million times per second. A one-gigahertz clock (1GHz) means one billion times.

MHz and GHz are used to measure the speed of the CPU. For example, a 1.6GHz computer processes data internally (calculates, compares, etc.) twice as fast as an 800MHz machine. However, the doubled clock speed of the CPU does not mean twice as much finished work gets done in the same time frame. Internal cache design, bus speed, disk speed, network speed and software design all contribute to the computer's overall processing speed and performance (overall throughput).

Users are often dismayed to find that they only obtain incremental improvements after purchasing a computer rated much faster than their old one. In addition, newer versions of software are often less efficient than previous ones. A faster computer is often required just to maintain the same performance level as the old software. See MIPS, Hertz and space/time.

MHz and GHz Are the Heartbeat
When referencing CPU speed, the megahertz and gigahertz ratings are really the heartbeat of the computer, providing the raw, steady pulses that energize the circuits. If you know German, it's easy to remember this. The word "Herz," pronounced "hayrtz," means heart. This was a coincidence, because in 1883, Heinrich Hertz identified electromagnetic waves.

The Speed Limit Megahertz and gigahertz are analogous to a highway speed limit. The higher the speed, the faster the traffic moves. In a CPU, the higher the clock rate, the quicker data gets processed. The 8-, 16- and 32 bit designation is the CPU's word size and can be thought of as the number of lanes on the highway. The more lanes, the more traffic. The combination of speed and number of paths determines the total processing speed or channel bandwidth.

Related Topics: gigahertz definition, megahertz gigahertz, gigahertz technologies, broadband communication gigahertz technologies terahertz

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