英语四级真题作文计算机,2017大学英语四级作文题目：大脑和计算机-优快云博客

本文比较了人类大脑与现代计算机的特点。大脑在能耗和体积上远胜计算机，且能实现复杂的信息处理。相比之下，计算机虽然在电力消耗和体积上较大，但在信息存储方面表现出不同的结构特征。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

The Brain and the Computer

Some recent developments in the computer industry make scientists predict that the gap between human beings and machines will be closed about the year 20000.

To understand the significance of this prediction let us compare the human brain with existing computers. The brain consumes electrical energy at the rate of 25 watts and occupies a volume of one tenth of a cubic foot. The brain houses between 10 billion and 100 billion items of information. Every brain cell is directly connected to many other cells. As a result, the cells in which information is stored can communicate with thousands of other cells.

However, the computer consumes 1000,000 watts of electrical power and occupies hundreds of cubic feet of space. Its million items of immediately accessible information. In contrast, the computer memory is like a cell of pigeonholes, with no thinking capacity and no connections elsewhere.

In a word, the electronic brains are hopelessly inadequate in comparison with the human brains.