1.2.2 roles that a computer can take in a networked world Flashcards
what roles can a computer assume?
function as a client, server, email, domain name system server (DNS server), router, or firewall
what is a dumb terminal?
device that consists of a keyboard, monitor and network card that is connected to a server or a powerful computer. They depend entirely on the computer that they’re connected to for computations, data processing and management
what is a thin client?
relatively low performance terminal, which heavily depends on the server that its connected to
what is a server?
clients receive data via network, the server has saved data on it and offers it to clients. server has saved data that provides services requested by clients connected over a network. a client is an average computer like dumb terminal or thin client
what is an email server?
manages the flow of email in and out of the network, checks that an email address is valid, allows users to access their email
what is a router?
networking device that accepts incoming information, reads their destination address and distributes them across networks. router identifies destination of messages and sends them through appropriate route.
what is a domain name system server?
resolves names by assigning them to the appropriate network entity. allows you to type names into the address bar of your web browser like “mit.edu” and the web browser automatically finds that address on the internet. IP
what is a firewall?
hardware ir software network infrastructure that controls data flow access among network entities. mainly used to offer protection and limit access to a network.
what is a client server?
software network architecture system where clients request information and servers perform tasks in order to provide the information. main difference between server and clients is that server share their resources where clients dont
