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| computer memory on which data has been prerecorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read |
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| a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printers. |
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| One GHz represents 1 billion cycles per second. Its a unit of electromagnetic (EM) wave frequency. |
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| a unit of electromagnetic (EM) wave frequency equal to one million hertz (1,000,000 Hz) |
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| used to describe disk storage capacity and transmission rates, a megabyte is 1,000,000 bytes in decimal notation. |
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| a measure of computer data storage capacity and is "roughly" a billion bytes. The prefix, "giga" comes from a Greek word meaning "giant." |
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