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Added Analog vs. Digital
The newer client-server architecture has largely done away with this thin clients, but some networks still use this sort of system. Sometimes, there is no operating system or local storage at all on a client "computer." Everything done is downloaded from and uploaded to a central server. Most people now use "fat clients," which only occasionally need to communicate with a server. <br />
The newer client-server architecture has largely done away with this thin clients, but some networks still use this sort of system. Sometimes, there is no operating system or local storage at all on a client "computer." Everything done is downloaded from and uploaded to a central server. Most people now use "fat clients," which only occasionally need to communicate with a server. <br />
Cloud computing has to some degree started bringing back thin clients, however. Since "Software as a Service" and other cloud-based solutions are becoming more popular, thick clients (personal computers) and to some degree being made into thinner clients again.
Cloud computing has to some degree started bringing back thin clients, however. Since "Software as a Service" and other cloud-based solutions are becoming more popular, thick clients (personal computers) and to some degree being made into thinner clients again.
==Analog vs. Digital==
Analog computers are specialized machines that operate with continuous (analog) values whereas digital computers use discrete values (usually binary). Analog computers are not stored program computers and, as such, they do not resemble modern digital computers. The earliest modern analog computer was the Differential Analyzer built in the 1930s.
==Architecture==
==Architecture==
All computer systems, regardless of classification or usage, consist of the following components:
All digital computer systems, regardless of classification or usage, consist of the following components:
* <b>Processing.</b> Provided by one or more [[Central processing unit|CPU]]s, sometimes with ancillary processors.
* <b>Processing.</b> Provided by one or more [[Central processing unit|CPU]]s, sometimes with ancillary processors.
* <b>Memory.</b> High-speed local storage, such as [[Random-access memory]]
* <b>Memory.</b> High-speed local storage, such as [[Random-access memory]]