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轻松摆脱网盲 上网常识早知道之电话拨号上网

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2014-11-30 11:19:48 转载来源: 网络整理/侵权必删

      正常来说,如果你是一个人用一个网络的话,会需要用到拨号上网。虽然这个不是很难,可还是有些人对这个拨号上网很是迷茫

  

    正常来说,如果你是一个人用一个网络的话,会需要用到拨号上网。虽然这个不是很难,可还是有些人对这个拨号上网很是迷茫。今天我们将详细给大家说说这方面的知识。     拨号接入是个人用户接入Internet最早使用的方式之一,也是目前为止我国个人用户接入Internet使用最广泛的方式之一。     它的接入非常简单。你只要具备一条能打通ISP(Internet服务供应商)特服电话(比如169,263等等)的电话线,一台计算机,一只接入的专用设备调制解调器(MODEM),并且办理了必要的手续后,就可以轻轻松松上网了。     与另外两种拨号方式(ISDN,ADSL)相比,它的收费也相当的低廉。虽然由于地区和ISP的不同略有差异,但是基本上都能承担的起。     电话拨号方式致命的缺点在于它的接入速度慢。由于线路的限制,它的最高接入速度只能达到56kbps。相对于其它接入方式的1M,2M,10M,乃至百兆、千兆的速度,它的速度只能用“爬”来形容了。

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标签: 上网 轻松 脱网 常识 知道 电话 拨号


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