Megapixel

When we buy a digital camera, we have always offered a camera with a variety of species, by stating how many megapixels they own.This is a common trait that is often mentioned digital camera manufacturers. From 3 to 12 megapixels or more, it seems that with each generation of digital cameras, there is a higher resolution image.
But what we need that megapixel? A mega pixel is represented by 1000000 (one million pixels).
So, if the maximum resolution digital camera provides an image 3000 pixels wide and 2300 pixels high, this camera has a resolution of 3000 x 2300 = 6900000 / 1000000 = 6.9 megapixels.
Speaking about the megapixels, the question arises: whether the high-megapixel camera with necessary? because high-megapixel cameras with more expensive.
If you intend to use the images on the Internet you will find that the maximum resolution of 1600 x 1200 will be sufficient. That means buy a 1.92 megapixel camera!
If you want to print pictures, you should consider the requirements of pixels per inch. 300 pixels per inch is standard in the printing of each image.It simply means that all you need to do to find the maximum width of printed images is to divide the width in pixels by 300.
3000 pixels / 300 = 10 inches maximum.
so it is recommended in selecting a digital camera tailored to the needs. it helps you prioritize the quality of optical zoom.

Book review Asuro Robot of Raffaello Bonghi

Asuro is a small programmabile robot in C with a microcontroller ATMEL ATMEGA8L. Been born like didactic robot, this is optimal for the first experimentations in the world of the robotics. The robot is reached in a box it of dimensions 20 x 17 x 7 cm Inside of the box it they were present: CD with handbook Card of the Asuro robot Card of the emitter Infrared Electronic and mechanical parts Material miscellaneous and a little ball from ping-pong. The robot appears without a doubt for a public young person, even if during the assembly a short guide is need of a sure preparation for being able to correctly knit the robot (inside of the handbook is present who explains the corrected use of the saldatore). After to have mounted the robot and the card for the seriale programming the robot turns out already operating thanks to a program already loaded inside with the PIC that verification the motors and the sensors of the robot. But now we begin to analyze to the card of the robot and all the fundamental characteristics, leaving from the microcontroller who it adopts.

Java

Java is a highly portable computer programming language. "Portable" is a term used to describe programs that can be run in many different computing environments and on many different "platforms" (MS Windows, Apple's Mac OS, Solaris, and Linux are all examples of "platforms")

It is Java's portability that makes it such an intriguing technology. To give you an example of how this portability relates to real world features and benefits, let's say you have a program that is written in Java such as a web browser. Normally, with a web browser application, the user is bound to the settings for the browser application and the configuration of the machine that they are using it on. So, at the office, the machine on Joe User's desktop has one set of bookmarks, plug ins, security setting, etc. Joe's machine at home will most likely have a different set of bookmarks, plug ins and settings. Now, let's say Joe want to have a more consistent experience with the computers that he uses everyday. Joe could install a Java-based browser on removable writable media (such as a floppy diskette, pen drive, zip disk or CDRW) and carry his browser with him (with all the settings, bookmarks and plug ins in tow as well!)

Java is not only portable, but it is also widely known, and does not need to be interpreted (like PHP, Java script and some other and other languages). Java also does not have to be compiled on the machine it will be run on. Java can be compiled once and run in its binary form on many systems. Although there are other languages out there that are extremely portable, there are few that could stand up to Java's "compile once, run everywhere" functionality. Java is truly a useful and feature rich programming language and is used to program many software programs on the market today.

Source: Free Articles

Wallpaper Slideshow - UBUNTU

We can create a cool Wallpaper slideshow like MAC OS on Ubuntu. The application used is Wallpaper Try.
Now we install wallpaper tray, just type on your console:

$ Sudo apt-get install wallpaper-tray

After the installation process is complete, add application on your toolbar by right clicking on the toolbar, select Add to Panel, actived Wallpaper Tray.
To configure the slideshow, just right click the icon in the toolbar, select Preferences. At the facility where you can set the background folder and other settings, like the time change and how the background show. Then enjoy your Wallpaper Slideshow.

Install JDK and JRE for Ubuntu

How can I install Sun Java Development Kit (JDK) and Java Runtime Environment (JRE) on Ubuntu Linux?
To install the JDK, JRE in ubuntu, and we can use an online repository.By using the following command in the terminal:

$ sudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk

That's the simple way that I use.good luck...

Performance And Aesthetic Feeling Sony Z19N Notebook Evaluation

With the use of fuzzy laptop and notebook computers are classified according to use is really more and more difficult. Commercial, domestic notebook classification of the product users nowadays seems a bit outdated. Notebook computer market nowadays, however, there are still persistent in the commercial notebook brands, including Fujitsu, Lenovo, Toshiba, DELL, HP, Sony. Sony is one of the performance of one of the most active of the brand is able to combine industrial design with a brand of notebook.

 SONY Z19N

 SONY Z19N

Sony introduced new notebook computers often before, can attract attention of many users. Why? Sony is an advocate of product innovation company, we used to call it technological aesthetic. Following the current commercial products sold after the SZ series, Sony announced a new generation of Centrino 2 platform, Z-series business notebooks. But according to Sony's past practice, business notebooks will only keep a family, believe the Z series will be replaced in the near future SZ series.

Advantages:
1, excellent work
2, top hardware
3, dual graphics switch
4 Molded Products C surface
5, the use excellent comfort
6, random software-rich If a laptop is not a high-quality notebook battery, can not guarantee notebook stable long hours of work, use the laptop must have an external laptop power supply, then the laptop loses its own significance. But the batteries are consumable, generally able to stabilize the work time in a year or so, then there may be "sudden die-off." If you are planning to buy laptops, then the need for laptop battery to do a physical exam in order to discover the battery problems.

source: www.articlesbase.com

[ HOW TO UBUNTU ] Connect LCD Projector

Easy way to connect LCD Projector:
1. setting your display resolution to 800x600 or resolution that can be supported by your projector.
2. use this

magic word

on terminal:

xrandr --auto

Good Luck

Remote PC via Bluetooth (for presentation)

This is a trick to remote the PC or Notebook via bluetooth, especially for presentation purposes. but it tricks also you can use to remote for other applications that you wish.
To do this trick you need a bluetooth active in your PC or notebook and a mobile phone that has bluetooth and support for java applications (JAVA midp 2). In this tutorial I use a Compaq Presario V3000 notebook and Nokia 6300, but you can use other peripheral comparable.
First, install the Nokia Wireless Presenter application on your PC, you can download at http://nds1.nokia.com/files/support/apac/phones/software/Wireless-Presenter-EN_UK-Setup.exe .
Then install the java aplication on your mobile phone: presenter.jar (eg for nokia 6300) you can download at http://nds2.nokia.com/files/support/apac/phones/software/Nokia_6233_Wireless_presenter.zip .
Then equate "Bluetooth Serial Port (incoming)" is in the application with bluetooth port on your PC.




You can also add or modify application that you are going to remote.