发布网友 发布时间:2022-04-24 16:37
共7个回答
热心网友 时间:2022-07-07 00:38
modem,即调制解调器,是一种计算机硬件,它能把计算机的数字信号翻译成可沿普通电话线传送的脉冲信号,而这些脉冲信号又可被线路另一端的另一个调制解调器接收,并译成计算机可懂的语言。这一简单过程完成了两台计算机间的通信。热心网友 时间:2022-07-07 01:56
调制解调器,俗称的猫。热心网友 时间:2022-07-07 03:30
http://searchmobilecomputing.techtarget.com/definition/modem
Electronic device that converts digital data into analog (molated-wave) signals suitable for transmission over analog telecommunications circuits (e.g., traditional phone lines) and demolates received analog signals to recover the digital data transmitted. The "molator/demolator" thus makes it possible for existing communications channels to support a variety of digital communications, including e-mail, Internet access, and fax transmissions. An ordinary modem, operating over traditional phone lines, has a data transmission speed limit of about 56 kilobits per second. ISDN lines allow communications at over twice that rate, and cable modems and DSL lines have transmission rates of over a million bits per second.
Read more: http://www.answers.com/topic/integrated-services-digital-network#ixzz19t2bYh9t
Modem是将数据信号调制在语音信号的频段内在电话线中传输。没有这个东西,没办法上网。
热心网友 时间:2022-07-07 05:22
Modem,其实是Molator(调制器)与Demolator(解调器)的简称,中文称为调制解调器(港台称之为数据机)。根据Modem的谐音,亲昵地称之为“猫”。参考资料:http://ke.baidu.com/view/46657.htm
热心网友 时间:2022-07-07 07:30
1、拨号上网用到的设备。Modem(Molator/DEMolator)调制解调器,是指在往铜线或电话拨号连接的传输中使用载波编码数字信号的设备。热心网友 时间:2022-07-07 09:54
modem就是路由器。热心网友 时间:2022-07-07 12:36
俗称 猫 是多台计算机连接网络的接口