Anonymous asked in 社會與文化語言 · 2 decades ago


The two types differ in the technology they use to hold data, dynamic RAM being the more common type.

In common usage, the term RAM is synonymous with main memory, the memory available to programs. In contrast, ROM refers to special memory used to store programs that boot the computer and perform diagnostics.

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The term was first used in 1946 by John Tukey, a leading statistician and adviser to five presidents.

A single bit can hold only one of two values: 0 or 1. More meaningful information is obtained by combining consecutive bits into large units. For example, a byte is composed of 8 consecutive bits.

Computers are sometimes classified by the number of bits they can process at one time or by the number of bits they use to represent address. These two values are not always the same, which leads to confusion. For example, classifying a computer as a 32-bit machine might mean that its data registers are 32 bits wide or that it uses 32 bits to identify each address in memory. Whereas large register make a computer faster, using more bits for address enables a machine to support large programs.

Graphics are also often described by the number of bits used to represent each dot. A 1-bit image is monochrome; an 8-bit image supports 256 colors or grayscales; and a 24- or 32-bit graphic true color.

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Abbreviation of Uniform Resource Locator, the global address of documents and other resources on the World Wide Web.

The first part of the address indicates what protocol to use, and the second part specifies the IP address or the domain name where the resource is located.

For example, the two URLs bellows point to two different files at the domain

The first specifies an executable file that should be fetched using the FTP protocol; the second specifies a Web page that should be fetched using the HTTP protocol.

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2 Answers

  • 2 decades ago
    Favorite Answer


    在普通的用法方面,期限隨機存取記憶體對主要的記憶 , 計畫能得到的記憶感到同義字。 在差別中, ROM 提及用來儲存踢電腦,而且表現診斷的計畫的特別的記憶。

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    期限在 1946 年首先被使用在約翰 Tukey,一個領導的統計家和對五位總統的顧問手邊。

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    Source(s): =.=
  • 2 decades ago

    The two types differ in the technology they use to hold data, dynamic RAM being the more common type.

    這兩種類型儲存資料所用的技術是不一樣的,動態 隨機存取記憶體是更普通的形式。




    Source(s): 我自己
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