Mobile Internet

In this globalization era, time and distance no more being obstacles for communication and information. Human being was helped by technology on this case. One of best invention in Information and Telecommunication are internet. Internet makes it easier to gain information and stay connected with your entire colleague all around the world. Today, internet can be simply accessed from most place of the world, not only from stationary computer, but also from mobile computer. you can accessing facebook, yahoo, or google while you are in the midle of your vacation in a hidden island, as a sample. Since 1990 many types of mobile computers have been introduced. There are several categories of portable computing devices: portable computers, keyboardless tablet PCs, Internet tablets, PDAs, Ultra Mobile PCs (UMPCs) and smartphones.

A Portable computer is a general-purpose computer that has a mobility (easily moved from place to place), it requires some "setting-up" and an AC power source in order to use it.

Mac OS X file System

Mac OS X is the brand new operating system for Machintos computer. First was Mac OS was released in 2001. Mac OS X version 10.5 (update 10.5.1-10.5.2-10.5.3-10.5.4) with "Leopard" code is the latest Mac OS X, was released on Oktober 2007.

Mac OS X is 10th generation of Machintos operating system, after Mac OS 8 and Mac OS 9. So…. Why they called/named it Mac OS X not Mac OS 10 ? Because it a tradition for their company to brand their own product with “unix” base operating system name, like AIX, IRIX, Linux, Minix, Ultrix, Xenix).

The interesting one from this operating system is its beautiful user graphic interface, and it become a sample for others.

Mac OS X have a unique file system that is the Mac OS Extended format. It provides both perceived simplicity and enhanced metadata attributes. It responsible for the simplification of the Mac OS X files structure. As a sample is an entire application can be represented as a single icon to the user in the Finder.

Complexity of the underlying file system increased, this was the downside feature. It makes complexity affects both compatibility and deployment practices.
The Mac OS uses several unique file elements to hide complexity from the user: file attributes, resource forks, bundles, and packages on its extended file system. Attention when using deployment tools.

On a Mac OS Extended volume, every file and folder has additional file attributes that are not immediately visible to the user. These attributes includes creation date, modification date, ownership, permissions, access control lists, Spotlight information, Finder labels, legacy file type information, file system flags. Some of attributes only can be accessed from the Get Info window of the Finder.

A resource fork was built in Macintosh operating system since long time ago; it used to simplify the user experience. Forked file system make complex items, such as applications, appear as a single icon, allowing multiple pieces of data to appear as a single item in the file system.

See other articles for further explanation.

Google Mobile Maps Was Updated

SAN FRANCISCO - In an update to its mobile maps, Google Inc. hopes to demonstrate that you can keep track of people on the road as effectively as the search for information online.

The new software to be released Wednesday will allow people with mobile phones and other wireless devices to automatically share with his family and friends.

The feature, called Latitude, is developing an instrument created in 2007 to allow mobile phone users to check their location on a Google Map with the press of a button.

"This adds a social flavor to Google maps and makes it more fun," said Steve Lee, product manager for Google.

It could also enhance the protection of privacy, but Google is doing everything possible to avoid a backlash by requiring each user manually in the tracking software and make it easy to turn off or limit access to the service.

Google also promises not to retain any information about the movements of its users. Only the last one chosen by the tracking service are stored on Google computers, said Lee.

The software plots a user's location - marked by a picture on Google Map - based on cell phone towers, global positioning system or a Wi-Fi to deduce its location. The system can keep people travel in the United States and 26 other countries.

Is to let each user to decide who can monitor their location.

The social mapping approach is similar to a service already offered by Loopt Inc., a 3-year-old company located near Mountain View headquarters of Google.

Loopt's service is compatible with more than 100 types of mobile phones.

For starters, Google will work on the latitude Research In Motion Ltd. 's BlackBerry and devices running the Symbian software and Microsoft Corp.' s Windows Mobile. Also operate in some of T-Mobile phones running on the Android software from Google and finally work on Apple Inc. 's iPhone and iTouch.

To broaden the appeal of software, Google offers a version that can be installed on personal computers as well.

The PC access is designed for people who do not have a cell phone, but you may want to keep tabs on your children or someone special, said Lee. People who use the PC version can also be seen if they are connected to the Internet via Wi-Fi.

Google can trace the location of a person within a few meters when using the GPS, or it could be several miles away if it was relying on the transmission of cellular telephone towers. People who do not want to be more precise about his whereabouts can choose to show only the city instead of a specific neighborhood.

There are no current plans to sell all advertising with Google tracking service, although analysts believe the location of a person possibly trigger new market opportunities. Google has been investing heavily in the mobile market in the last two years in an attempt to make their services more useful to people when they are away from their home or office computer.