They are mission critical applications...eg It could be Exchange server, Database Server etc
Client tier is actually a 3 tier hierarchical structure which includes cliet tier, application tier and data tier.
the client is on the first tier. The database server and web application server reside on the same server machine, which is the second tier. This second tier serves the data and executes the business logic for the web application
Chennai is tier 1 but Madras is tier 2
A tier-1 ISP connets to all other tier-1 ISP's; a tier-2 ISP connects to only a few of the tier-1 ISPs. Also a tier-2 ISP is a customer of one or more tier-1.
gdg Web applications are stored on a server and delivered to users over the Internet. A Web application is usually a three-tier structure, comprising a User Service tier (allowing user access to the application), a Business Service tier (allowing the user to carry out complex activities) and a Data Service tier (which allows data storage and retrieval). An application that conforms to the Java 2 Platform Enterprise Edition specification. publib.boulder.ibm.com/infocenter/ws51help/topic/com.ibm.websphere.exp.doc/info/exp/glossary.html Web applications are stored on a server and delivered to users over the Internet. A Web application is usually a three-tier structure, comprising a User Service tier (allowing user access to the application), a Business Service tier (allowing the user to carry out complex activities) and a Data Service tier (which allows data storage and retrieval). An application that conforms to the Java 2 Platform Enterprise Edition specification. publib.boulder.ibm.com/infocenter/ws51help/topic/com.ibm.websphere.exp.doc/info/exp/glossary.html Web applications are stored on a server and delivered to users over the Internet. A Web application is usually a three-tier structure, comprising a User Service tier (allowing user access to the application), a Business Service tier (allowing the user to carry out complex activities) and a Data Service tier (which allows data storage and retrieval). An application that conforms to the Java 2 Platform Enterprise Edition specification. publib.boulder.ibm.com/infocenter/ws51help/topic/com.ibm.websphere.exp.doc/info/exp/glossary.html
Metro Cities are called Tier 1
"Tiers" are the item levels. Potions at Tier 1 restore less HP then those of Tier 2. Tier 1 potions heal 250 HP while those of Tier 3 can heal 1250. Basically, the higher the tier the stronger that item is.
3-Tier
In Automotive manufacturing a Tier 1 contracts and supplies material / parts direct to an OEM ( Original Equipment Manufacturer), A Tier 2 sells to the Tier 1 and the Tier 3 sells to the Tier 2.
Tier 1 is the top tier... this would includes groups such as Delta Force, SEAL Team 6, 22nd SAS Regiment, etc.
tier 1 companies is not only based on turn over it also based on the employee welfare,what security they are providing,what facility they are providing for the employee.
A tier 2 organisation is a company that generates a revenue of one hundred million - one billion... Anything above one billion is classed as tier 1. A tier 2 organisation also has between 4000 and 1000 employees.