宽带目前还没有一个公认的定义,从一般的角度理解,它是能够满足人们感观所能感受到的各种媒体在网络上传输所需要的带宽,因此它也是一个动态的、发展的概念。目前的宽带对家庭用户而言是指传输速率超过1M,可以实现24小时连接的非拨号接入的网络基础设施及其服务。普通电话线路的非对称数字用户环路技术(ADSL)、基于光纤 IP网的以太网技术、有线电视的 Cable Modem 技术及基于卫星通信的 Direct PC 技术等都是宽带技术的典型。宽带能带来什么呢?主要的就是高速上网。现在一些宽带接入小区的住户们已经发现,宽带不仅有普通网络的浏 Broadband currently does not have a well-established definition. From a general perspective, it understands that broadband is a dynamic and evolving concept that can satisfy the bandwidth that various media can feel when it comes to the network. Current broadband refers to home users as a network infrastructure with a transfer rate of more than 1M for 24-hour connected non-dial-up access and its services. Asymmetric Digital Subscriber Line (ADSL) for ordinary telephone lines, Ethernet based on optical fiber IP networks, Cable Modem for cable TV and Direct PC based on satellite communication are all examples of broadband technologies. What can broadband bring? The main thing is high-speed Internet access. Now some households with broadband access have found that broadband not only has ordinary network browsing