DoubleSight PC EXPANION Manual do Utilizador descarregar pdf (Página 18)

I. INTRODUCTION

A. OVERVIEW

In the past, computer users sat at a “dumb terminal”

and logged into a mainframe for access to shared system

resources. Over time, especially in the business world, they

began to desire more from their systems than what dumb

terminal technology offered. As Personal Computers (PCs)

became more affordable, they introduced a welcome

alternative to client/server architecture with the advantage

of considerably more computing power than the dumb terminal.

However, everyday users did not possess the skills necessary

to implement software upgrades, introduce new applications

or perform routine maintenance on their machines. Soon, the

costs associated with maintaining a network that utilized

PCs became overwhelming.

Current thin client technologies offer the same form of

access and support to users with more robust application

server support at considerably less cost. Current desktop

PC processing power far exceeds the vast majority of users’

needs and the costs associated with hardware procurement and

system maintenance can be greatly reduced by implementing

thin client architectures into workspaces that offer a

variety of applications to the common user.

Thin client architectures differ significantly from PC

network configurations currently used throughout many

Thin Client Movement. Accessed 6 April 2007, available at URL:

http://www.tomax.com/Library/sourcefiles/whitepapers/ThinClientMovement.

pdf.

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DoubleSight PC EXPANION Manual do Utilizador Página 18