computer news

There is no doubt that using a laptop or a netbook for a long time can cause serious injury to your body and can bring on serious wrist injury.

Why using a laptop can harm me ?

scientists at the Ergonomic Departments at Cornell and Harvard University agree that the design of laptop computers violates the basics of ergonomic requirements for a computer, That is to say , that the keyboard and screen are separated. When the keyboard is in the proper position for the wrist, the screen is not at the right height for viewing and vice versa.

So , what are the Ergonomics basics to use a Laptop or Computer devices ?

This short video will show you exactly the Ergonomics basics to use a Laptop or Computer devices for adult and children :

Finaly , You have to pay attention back pain and strain if you use your laptop daily , and the easiest way for me if to use a Laptop stand .

I have just installed Ubuntu 12.04 on my Acer Aspire One ZG5 , but i faced a problem that couldn't use wireless connection , so i was obliged to read many articles to solve this problem , and this is a simple and easy way for you to install Wireless card on this Netbook or any laptop that use Atheros wireless card .

Install Madwifi for Atheros :

Open the 'terminal' by navigating through Applications-->Accessories--> Terminal

Now type the following commands in terminal

1.

Code:

sudo nano /etc/apt/sources.list

From there make sure you uncomment anything that starts with "deb" in there. So changer it from "#deb" to "deb" Something along thoes lines. To exit and save hit "CTRL+X" the answer "YES" to do you want to save, then finally hit "ENTER"

2.

Code:

sudo apt-get update && sudo apt-get upgrade

Code:

sudo apt-get install build-essential libssl-dev

Code:

sudo apt-get install linux-headers-`uname -r`

Code:

sudo apt-get install subversion

Code:

sudo -i

Code:

sudo svn checkout http://svn.madwifi-project.org/madwifi/trunk/ madwifi-ng

Code:

cd madwifi-ng

Code:

echo "" >> /etc/modprobe.d/blacklist

10.

Code:

echo "#Remove To Install MadWIFI Drivers" >> /etc/modprobe.d/blacklist

11.

Code:

echo "blacklist ath9k" >> /etc/modprobe.d/blacklist

12.

Code:

echo "blacklist ath5k" >> /etc/modprobe.d/blacklist

13.

Code:

make && make install

14.

Code:

echo ath_pci >> /etc/modules

Restart your machine.
It should work

Well i use Wicd to connect to the wireless modem
To install Wicd type the following commands in terminal

Code:

sudo apt-get update

Code:

sudo apt-get install wicd

Kernal updates of your system will kill your driver. Well no need to worry about that.Just recompile your driver.
For that you open a terminal and type the command

Code:

sudo -i

and just repeat the steps from No 8. Your madwifi will come back to life again.

sources : http://ubuntuforums.org/showthread.php?t=1484242

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