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Truncation of numbers

August 1, 2012 by Rick Hernandez Leave a Comment

what causes truncation? to limit the number of digits after the decimal point in computer science and mathematics. This is done by discarding the least significant ones. Example:  Consider real numbers in mathematics … [Read more...] about Truncation of numbers

Filed Under: Mathematics, Programming

What are some heuristic familiar metaphors & languages.

July 19, 2012 by Rick Hernandez Leave a Comment

The system should speak the user language, for a specific task that it is completing. with words, phrases, concepts that are familiar to the end user, rather than the system-oriented terms, following real world conventions, making information appear in a natural … [Read more...] about What are some heuristic familiar metaphors & languages.

Filed Under: Human Interaction

FURPS / FURPS+ What is it?

July 17, 2012 by Rick Hernandez Leave a Comment

F functional requirements U usability requirements R reliability requirements P performance requirements S Supportability requirements … [Read more...] about FURPS / FURPS+ What is it?

Filed Under: Human Interaction, Programming

Design process of an object oriented program.

July 17, 2012 by Rick Hernandez Leave a Comment

Gather the Requirements Describe the application Create a use case story a assumption of the completed software Create a prototype Identify the main goal what is the most important of program discard what you don't need … [Read more...] about Design process of an object oriented program.

Filed Under: Human Interaction, Programming

How to create GREAT human computer interaction

July 17, 2012 by Rick Hernandez Leave a Comment

Visibility Consistency Non-Destructive Environment Easy flow of discovery Reliability, should and should not happen randomly … [Read more...] about How to create GREAT human computer interaction

Filed Under: Human Interaction

What are the power of 2?

June 26, 2012 by Rick Hernandez Leave a Comment

What why math?  well let me tell you why math and exponents, plenty of people have issues with exponents and not to mention when you bring in imaginary numbers and logarithms. But back to the subject of networking this subject is simple enough  it goes as … [Read more...] about What are the power of 2?

Filed Under: Mathematics, Networking

What does dynamic IP address mean?

June 26, 2012 by Rick Hernandez Leave a Comment

This can a be a tricky questions to answer, but this is my best answer that i can com up with. A dynamic Internet protocol address is a temporary number (can not stress this enough) assigned to your computer by your service provider or ISP. This number or "address" … [Read more...] about What does dynamic IP address mean?

Filed Under: Networking

Action plan to deploying a network.

June 25, 2012 by Rick Hernandez Leave a Comment

Follow this simple steps to have a  smooth transaction when starting a network from scratch. Gather the information about the network Develop a physical network layout (switches routers etc) Develop a network hardware list (What type of router … [Read more...] about Action plan to deploying a network.

Filed Under: Networking

Getting the best use out of Syslogd logs

June 19, 2012 by Rick Hernandez Leave a Comment

One of the best features that syslogd can provide for system administrators, is the ability to receive messages whenever something interesting is happening in the network. But like with any good thing certain limits have to be applied. The wonderful part about this … [Read more...] about Getting the best use out of Syslogd logs

Filed Under: Networking

What to do when SNMP fails?

June 19, 2012 by Rick Hernandez Leave a Comment

If everything and i mean everything is just not working in your network you might wan to give syslogd a try, come again what in the world is syslogd? this is a perfect valid question well the meaning of it is "Sysklogd provides two system utilities which provide … [Read more...] about What to do when SNMP fails?

Filed Under: Linux networking, Networking

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