The system is implemented as a network of nodes, each node configured with hardware and software.
系统作为一个节点的网络实现，每个节点都配置有硬件和软件。
2
In all software and system development there are important constraints implied by the choice of languages, hardware, network topology, communications protocols and infrastructure, and so on.
SNMP is a popular standard protocol that allows system management software to request and receive information from network devices, servers, and software.