📜  模拟计算机与数字计算机的区别

📅  最后修改于: 2021-09-15 01:13:50             🧑  作者: Mango

先决条件 – 计算机分类
1. 模拟计算机:
模拟计算机系统是非常古老的计算机系统,它以连续可变的物理量/实体(如机械、电气、液压等)的形式对数学变量进行操作。它们使用连续值而不是离散值,因此它们对模拟信号起作用。在 1950 年代至 1960 年代,这些模拟计算机首次被使用。模拟计算机在接受问题方面受到限制,而且它们永远不可能非常准确。

2. 数码电脑:
数字计算机是使用二进制数字系统的计算机系统/机器,它有两个数字:0 和 1,并执行许多计算任务。它处理以离散形式表示的数据,数字计算机的三个主要组成部分是输入、处理和输出。第一台数字计算机是为 1940 年代后期的数值计算而设计的。数字计算机提供更准确的结果,因为它不依赖于处理任务的物理量。

模拟计算机和数字计算机的区别:

S.No. ANALOG COMPUTER DIGITAL COMPUTER
01. Analog computers works with continuous values or these types of systems process continuous data. Digital computers works with discrete values or these types of systems process discrete data.
02. Speed of analog computers is less than the digital computers. Speed of digital computers is more than the analog computers.
03. Analog computer has very low or limited memory and it can store less amount of data. Digital computer has very big memory it can store large amount of data.
04. Analog computer has no state. Digital computer has On and Off these 2 steps.
05. Analog computers are less reliable than digital computers. Digital computers are more reliable than analog computers.
06. Its performance is comparatively low. Its performance is very high.
07. Its speed of processing is not so high. Its speed of processing is very high.
08. Analog computers depends upon physical variations. Digital computers does not depend upon physical variations.
09. It provides results with less accuracy as compared to digital computers. It provides results with higher accuracy as compared to analog computers.
10. Analog computers are difficult to use. Digital computers are not so difficult to use.
11. Analog computers have complex architecture. Digital computers do not have so complex architecture like analog computers.
12. Readability of analog computer is low. Readability of digital computer is high.
13. Analog computers show the result in terms of voltage signals. Digital computers show the result in computer display screen.
14. Analog computers employs analog encoding. Digital computers employs digital encoding.
15. Power consumption is high. Power consumption is low.
16. They are usually special purpose devices. It can be general purpose devices.
17. Examples includes analog clock and thermometer etc. Examples includes Digital laptop, digital camera, digital watches etc.