Jargon Buster

There is a lot of jargon associated with technology, and Cloud Computing is no different.  We have created this Jargon Buster page for common Cloud Computing related terminology.  If we use any jargon that isn’t listed below, contact us and we’ll add it.

General terms

The Cloud – The Internet:  So called because a cloud symbol was a well established way to represent the Internet in network schematics.

Cloud Computing – Computer services provided to the end users over the Internet.

PAYG/MRR.  How Cloud providers charge for particular services.  PAYG (Pay As You Go) services are charged for only when they are used and costs can vary greatly from month to month, whereas MRR (Monthly Recurring Revenue) indicates an agreed, constant level of service for a fixed price each month.

Tenant.   A term used by some cloud providers to describe a group of users in a single organisation.  A single-tenant cloud describes a private cloud, and a multi-tenant cloud describes a public cloud. (See Types of Cloud below)

VPN (Virtual Private Networking)  – A secure connections through the Internet between two locations created using encryption technology.

Virtual Machine (or Server) – A software program that imitates both the computer (or server) hardware and software for the end user.  One powerful server can act as many separate virtual machines (or servers) for many different users at the same time.

VoIP (Voice over IP) – A method for delivering telephone calls and other voice communication over the Internet.

Types of Cloud:

Public Cloud – A pool of shared  computer resources accessible to many organisations and people

Private Cloud – A pool of shared  computer resources accessible to a single organisation

Hybrid Cloud – A system using a mixture of both public and private cloud technologies.

Cloud Models:

SaaS (Software as a Service) – Accessing online software like email, backup, and file sharing over the Internet.

PaaS (Platform as a Service) – Accessing a programming platform to create your own software, databases and applications over the Internet.

IaaS (Infrastructure as a Service) – Accessing hardware resources like servers, IP addresses and firewalls over the Internet.