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process^2 comparison table
Subject continue know initialize locate on accept be access do concurrently send initiate connect with terminate react to access by respond to stop has definition try again operate with keep listen for handle disconnect see also
client^2 the network address of the serveritself so it is able to communicate with the serverthe same computer as its server or on a different computer a server at the same timemany servers to perform different functions
  • Waiting for interactions with the end-user, and responding when interactions occur
  • Waiting for messages coming from the server, and responding when messages arrive
messages to the server to request servicesa connection to a servera server unless the server is listeningcleanly including includes disconnecting from a server if it is still connectedmessages coming from the server   A program or process that connects to another program or process, using a communication channel, in order to request a serviceto connect to the server if the server does not initially respond   the disconnection of the server, because the server crashed or the network failed or because either the client or server requested disconnection client^2
serverto serve currently connected clients after it has stopped listening itself so that it is able to provide the required servicethe same computer as its clients or on a different computernew client connections if it has stopped listeninga client at the same time 
  • Waiting for interactions with the user who is in charge of the server, and responding as necessary
  • Waiting for clients to try to connect and establishing connections as needed
  • For each connected client, waiting for messages coming from that client, and responding when messages arrive
   when necessary, which involves such actions as notifying each client before terminating its connectionmessages from connected clients: performing computations or obtaining information, and normally sending some information back to the requesting client and perhaps sending a message to another client or broadcasting messages to many clients at once.many clients simultaneouslymessages from all the connected clientslistening if the number of connected clients becomes too high, or prior to shutting downA program or process that, in response to requests from clients, provides some kind of service at least two concurrent threads, and in general n+2, threads where n is the number of connected clientsa record of the connection while a client is connectedclients attempting to connectconnections from many clientsclients - the client may request disconnection by sending a message to the server, the client may just disappear suddenly due to the client crashing or the network connecting going down, or the server may force a client to disconnect if the client is not behaving wellprocess

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