Network technology

Data signals are transmitted from one device to another using one or more types of
transmission media, including twisted-pair cable, coaxial cable and fibre-optic cable. A
message to be transmitted is the basic unit of network communications. A message may
consist of one or more cells, frames or packets which are the elemental units for network
communications. Networking technology includes everything from local area networks
(LANs) in a limited geographic area such as a single building, department or campus to
wide area networks (WANs) over large geographical areas that may comprise a country,
a continent or even the whole world.

Read More

internet securitiy

In 1985, RFC 950 defined a standard procedure to support the subnetting, or division, of
a single Class A, B, or C network number into smaller pieces. Subnetting was
introduced to overcome some of the problems that parts of the Internet were beginning
to experience with the classful two-level addressing hierarchy:
- Internet routing tables were beginning to grow.
- Local administrators had to request another network number from the Internet
before a new network could be installed at their site.
Both of these problems were attacked by adding another level of hierarchy to the IP
addressing structure. Instead of the classful two-level hierarchy, subnetting supports a
three-level hierarchy. Figure 6 illustrates the basic idea

Read More

samsung GALAXY S3

Read More

samsung galaxy tab 10.1

Read More

Approach 2 code

How do you approach coding?

During a professional career, each one of us develop a certain coding style and have some coding preferences. We use and reuse certain coding patterns that in time can become our trademark. The process of finding the perfect approach to coding takes years. During those years you filter out all the bad habits you have, and embrace new good ones. Actually, you are perfecting your style constantly but, at some point, you think "your way" is so perfect that you don't want to change (or add) anything.

I can speak for myself and say that my "coding style" has become somewhat of a "coding obsession". When I am asked to tweak a css property here and there on a site that I didn't develop, I find myself editing and organizing entire style sheet to my preferences. I am like those housewives that first have to clean up the entire kitchen before making a cup of coffee. Don't have to tell you how much more time I spend that way. I usually do this things to improve the code and do my client a favor, but I sometimes rewrite it just because it's not formatted the way I like it! I mean, it's a good peace of code and I am still making modifications. But, hey, don't get me wrong, it's not that I am not a tolerant and flexible person :) I love people and their work! I do!

The difference between the two

So, where is that thin line between purist and a freak? Well, each one will definitely try to improve a poor code, no doubt about that. But the difference is when they take over someone else's good code. Purist will embrace the coding patterns the developer before him used and continue in the same way. Freak? He (or she) will modify entire code to his own preferences, search for a way to optimize two lines of code into one, spend hours on moving properties, classes, functions up and down until the perfect harmony is found, will be persistent enough to go through each line and delete those darn, no-good white spaces after brackets... You may call it obsession, but to freaks there's no other way :

Read More