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Thin client

A thin client is a lightweight computer that is purpose-built for remoting into a server (typically cloud or desktop virtualization environments). It depends heavily on another computer (its server) to fulfill its computational roles. This is different from a conventional desktop PC (fat client), which is a computer designed to take on these roles by itself. The specific roles assumed by the server may vary, from hosting a shared set of virtualized applications, a shared desktop stack or virtual desktop, to data processing and file storage on the client's or user's behalf.

Software as a service

Software as a service (SaaS; pronounced /sæs/^[1]) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted.^[2][3] It is sometimes referred to as "on-demand software",^[4] and was formerly referred to as "software plus services" by Microsoft.^[5] SaaS is typically accessed by users using a thin client via a web browser. SaaS has become a common delivery model for many business applications, including office and messaging software, payroll processing software, DBMS software, management software, CAD software, development software, gamification, virtualization,^[4] accounting, collaboration, customer relationship management (CRM), management information systems (MIS), enterprise resource planning (ERP), invoicing, human resource management (HRM), talent acquisition, content management (CM), and service desk management.^[6] SaaS has been incorporated into the strategy of nearly all leading enterprise software companies.^{[citation needed][7][8]}
According to a Gartner Group estimate, SaaS sales in 2010 reached $10 billion and were projected to increase to $12.1 billion in 2011, up 20.7% from 2010.^[9] Gartner Group estimates that SaaS revenue will be more than double its 2010 numbers by 2015 and reach a projected $21.3 billion. Customer relationship management (CRM) continues to be the largest market for SaaS. SaaS revenue within the CRM market was forecast to reach $3.8 billion in 2011, up from $3.2 billion in 2010.^[10]

ARP - Address Resolution Protocol

Short for Address Resolution Protocol, a network layer protocol used to convert an IP address into a physical address (called a DLC address), such as an Ethernet address

Definition DOCSIS (Data Over Cable Service Interface Specifications)

Now known as CableLabs Certified Cable Modems, DOCSIS (Data Over Cable Service Interface Specifications) is a standard interface for cable modems, the devices that handle incoming and outgoing data signals between a cable TV operator and a personal or business computer or television set. DOCSIS 1.0 was ratified by the International Telecommunication Union (ITU-TS) in March of 1998. Although "DOCSIS" continues to be used, the newer name emphasizes that the standard is now being used to certify the products of cable modem makers. Cable modems conforming to DOCSIS are now being marketed.
                                        DOCSIS is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable TV (CATV) system.