History of the Internet(因特网的历史)
Nowadays Intemet is very popular all over the world,especially in some big cities.Do you know when the Intemet was first established?Built in 1960s,the Internet was a crude network of a few computers which shared information.If one of the computers broke down,the whole networks would be unable to work,causing continual problems.At first,just the government had access to the Internet,using it for communications among different branches.However,by 1970s the Internet had been used in universities,banks,and hospitals.At the beginning of 1990s computers became affordable for common people and this affordability increased the use of the Internet by people,
It is said that each day tens of millions of people log off,making it the most important part of people's life.
现在因特网在世界范围内非常流行,特,别是一些大城市更是如此.你知道因特网是在什么时候建立的吗?建立在二十世纪六十年代的因特网是少许计算机分享信息的原始网络.如果一台计算机坏了,整个计算机网络就停止工作,这带来了一系列的问题.最初只是政府利用因特网在不同的分支机构间交流.然而,到了二十世纪七十年代,因特网开始被用于大学、银行和医院.到了二十世纪九十年代初,计算机对大众来说已经负担得起了,因此因特网的使用也随之增加.
猜你喜欢
- 1要将两种大小不同的钢板截成A、B、C三种规格,每张钢板可同时截得三种规格的小钢板的块数如下表所示: 规格类型 A规格 B规格 C规格 钢板类型 第一种钢板 2 1 1 第二种钢板 1 2 3今需A、B、C
- 2有梨,苹果,桃三种水果,梨占总数的五分之三,苹果是桃的三分之二,苹果比梨少十一个,这三种水果共有多少个?
- 3Let's look at the lions first.(同义句转换)
- 4come to
- 5等腰△的两边长分别是3cm和6cm,则这个三角形的周长是_.
- 612g碳和20g氧气完全反应生成CO和CO2两种物质的质量比多少?
- 7一点到圆周上点的最大距离为11,最小距离为3,则圆的半径为_.
- 8做一个自以为是的人好吗?
- 9甲乙二人从AB2地出发,相向而行速度比为3:2相遇后,甲提速20%乙提速30%,甲到B时,乙离A14km.求AB距离?
- 10一件工作单独做甲用10天乙用15天,丙用20天现由三人合作,中作甲有事停工几天,结果6天完成,问甲停工几天?