Last article show how I hate Ubuntu 9.10. Still willing to give another look at the "improved" version of Ubuntu, I try to upgrade it to 10.4, latest version available today. As a user, I expect the upgrade goes smoothly. I hope there only a couple of glitch which unfortunately should be expected to happen.

Updating the apt source allow upgrading. I don't want to bother with README because the webpage do not show any warning. The upgrade process run, asking a couple of confirmation, and then ask for reboot.

Linux today is not as good as the old days. The core is getting slower. The most popular Linux, Ubuntu, is now become more unreliable.

Previously I have successfully set up OpenBSD mail server. User can connect with mail client that support encrypction. User can login with Windows Active Directory password. User can change their password by using web mail interface. Although migrating the users need to be done with bach file, it is a rather fast installation. Everything that done according to OpenBSD limitation, feature and requirement will work. Something users would expect from an reliable operating system.

After happy installation with OpenBSD I try to use Ubuntu as email server. I already have some experience with Ubuntu. I install several version of Ubuntu on user computer. Starting from version 5.10 through 8.10. From many problem faced by the user I found that version 6.06 provide the most problem free system. Everything work with only some minor glitch. Open Office fortunately can be upgraded to latest version without the need to upgrade the system. The only complain from users is slower performance from Microsoft product.

The addition of Motorola to Google Android supporter has created a lot of interest. Motorola seems to abandon Windows Mobile for the lack of its Windows Mobile models success in the market. Motorola has already launch Android based model with Motorola Cliq. However, the release of Motorola Droid is anticipated more because Motorola Droid will use the latest version of Android. While Motorola Cliq use Android version 1.5, Motorola Droid will use Android version 2.0.

Motorola Droid had predicted to be sold for more than a million. Many people said that Droid can be compared or even better than iPhone. It offer multitask and perform as fast as iPhone. However, Droid is not without problem. Some user has reported that some third party application can make the phone locked up or very slow. Some user even suggests the need of task killer. This is a typical Linux problem.

A cell phone is like a computer. A cell phone requires an operating system to operate. Operating system will provide the interface and functionality to user. Cell phone operating system once was proprietary to each vendor. Each cell phone vendor makes their own of operating system.

There are misconception among cellphone owner about what is safer. There are a couple of articles that suggest some way to avoid radiation. They mention about how expert have warn people about cellphone radiation. Notice that the solution usually do not came from the expert. Sometimes the suggestion can even be more risky than it original is.

It is important to keep your battery healthy. Healthy battery will provide longer life time and longer service. Proper maintenance will also help avoid problem to you battery. Battery can be a dangerous thing if not handled properly.

It is important for you to know how to handle the battery correctly. These are summary of tips taken from various cell phone manual:

Cell phone is a device that enable us to do communication everywhere. The technology that enable this communication is wireless protocol technology. A cell phone is basically a two way radio. Cell phone will transmit and receive radio signal from nearest base station to relay our communication to a central communication controller server.

As a two way radio, cell phone need to emit some electromagnetic radiation to enable them to connect to nearest base station. To protect the user from excessive radiation FCC has made a standard for cell phone radiation. This standard is called SAR.

Cell phone has become a standard thing to have now. Many people from various age have use it. People use cell phone to communicate in almost everywhere. There are several safety factor need to be considered when using a cell phone. A cell phone can be dangerous. It is important know what is the hazard of a cell phone. Bellow are some point to be considered for having a cell phone.

Danger from radiation

Some people have considered cell phone as dangerous item because they believe cell phone can cause cancer or tissue abnormality. This is different from what the representative of phone companies,

TFT definitly brighter and more colorfull than CSTN, but TFT also draw more power and more expensive, for handphone this is bad. STN technology can actually compete with TFT, as long as the screen still black and white.

But as the current trend now is colorfull screen TFT now become one of the main choice because it deliver higher contrast than CSTN. STN technology is still widely used for mid to low range model. Cheaper price and lower power consumption will still make them a viable option, especially with recent technology improvement.