WAS - Websphere Application Server - Something something..

Profiles - To create different types of WebSphere Application Server runtime environments, you must install the WebSphere Application Server 6 WebSphere Application Server V8.5 Administration and Configuration Guide for the Full Profile core product files and then create a set of configuration files called profiles.
Application server - The application server is the platform on which Java language-based applications run.
Node - A node is an administrative grouping of application servers for configuration and operational management within one operating system instance.
Deployment manager - The deployment manager is the central administration point of a cell that consists of multiple nodes and node groups in a distributed server
configuration.
Node agent - In distributed server configurations, each node has a node agent that works with the deployment manager to manage administration processes.
Cell - A cell is a group of nodes in a single administrative domain.
Administrative agent - An administrative agent is a component that provides enhanced management capabilities for multiple stand-alone application servers.
Job Manager - The job manager is a component that provides management capabilities for multiple stand-alone application servers, administrative agents, and deployment manager.

How to start websphere server

1: Start DeploymentManager
E:\IBM\WebSphere\AppServer\profiles\Dmgr02\bin>startManager.bat

2: Start Node
E:\IBM\WebSphere\AppServer\profiles\Node02Profile\bin\startNode.bat

3: Start BPM Server.[Optional - Only if required]
E:\IBM\WebSphere\AppServer\profiles\Node02Profile\bin>startServer.bat server1

(use admin/admin for any prompt)

4: Start AppServer.
E:\IBM\WebSphere\AppServer\profiles\AppSrv02\bin>startServer.bat server1

5: To Start queues [If queues need are available]
E:\IBM\WebSphere MQ\bin\strmqm
To End queue
E:\IBM\WebSphere MQ\bin>endmqm
To Open MQ Explorer
E:\IBM\WebSphere MQ\bin>strmqcfg