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SNA IBM主机连网标准SNA是近二十年来连网技术发展的一大里程碑。SNA于1994年正式推出,数年后产品问世,使用户可以访问存储于主机上的极大量的数据。在SNA的基础上,IBM又开发了多层通讯方式,它是公司完成后继数据通讯的基础。 DECnet DECnet于1975年推出,支持以太局域网,基带网及宽带网等数种网络通讯。调整后的DEC体系适用于互连工作站、终端、PC机、Macs、PDP和VAX等。由于DEC网的每个网络节点都具备智能特征,而且DEC网还可与PC和VAX相连,因此,它深受学术界以及研究机构的欢迎。
SNA IBM Host Networking Standard SNA is a major milestone in networking technology over the last two decades. SNA was officially launched in 1994, a few years after the product came out, allowing users to access the vast amount of data stored on the host. Based on the SNA, IBM has developed a multi-layer communication, which is the company to complete the basis for subsequent data communications. DECnet DECnet was introduced in 1975 to support several types of network communications such as Ethernet LANs, baseband and broadband networks. The adjusted DEC system is suitable for interconnecting workstations, terminals, PCs, Macs, PDPs and VAX. Because every network node of DEC network has intelligence characteristic, and DEC network can be connected with PC and VAX too, it is very popular among academic circles and research institutes.