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Minggu, 19 Agustus 2012

Tips Reducing the Impact of Radiation Monitor


how to minimize the radiation so it does not cause eye damage? The following will explain some tips.
  1. Choose Monitor Low Radiation
    Choose a computer screen that low radiation power, such as LCD or LED. The resulting radiation power is smaller than the CRT monitor models. If you still have had to use a CRT monitor / tube. use a 75Hz refresh rate, or more because the refresh rate can damage the eye.
  2. Consider Room Lighting
    The lights are too bright dark atupun easily cause eye fatigue. Adjust the room lighting is adequate so that the eyes do not have to work hard in the face of the monitor.
  3. Arrange Lighting Your Computer
    Adjust contrast and brightness of your computer so that eyes feel comfortable when using computers.
  4. Wear sunglasses with Special Lenses to Computers
    Currently, several companies have made the upper part of the lens is designed to look at the computer, while the bottom for reading.
  5. Silicon Hydrogel Contact Lenses
    For contact lens users, could use a new generation of contact lenses made from silicone hydrogel. Silicon allows a higher transmission power than other types.

After using the computer for several hours, rest your eyes for a moment, then resumed again. Prevent damage to our eyes early on, before it's too late!

may be useful


Definition of HSPA, HSPA, HSDPA, EVDO

If you ever wear a GSM modem you may be familiar with the name of GPRS, EDGE, UMTS, HSDPA / HSUPA, and HSPA? it is an evolving technology in the GSM network. And do you know about the difference?

Global System for Mobile Communication GSM is an abbreviated mobile communications technology that is digital. GSM technologies are widely applied in mobile communications, especially mobile phones. This technology utilizes the microwave and signal transmission is divided by time, so that the signal information sent will arrive at the destination. GSM global standard used for mobile communications as well as mobile technology most widely used of people around the world. GSM capable of delivering voice and low speed data (9.6 to 14.4 kbps) and then evolved into GPRS.

General Packet Radio Service or GPRS is the abbreviated development of GSM technology to speed data communications up to 115kbps for GPRS system can be used to transfer data (in the form of data packets) that are associated with e-mail, image data (MMS), Wireless Application Protocol (WAP ), and the World

Senin, 13 Agustus 2012

Computer mouse

Computers need regular maintenance. Complete computer consists of CPU, monitor, keyboard and computer mouse. Mouse is small but it has an important function.

Computer mouse functions
actual computer without the computer mouse can still be executed by using the navigation buttons on the keyboard. But by using the computer mouse work you are doing becomes easier and faster. You simply press on the mouse when the cursor (arrow) that moves as you wish. The function of this computer mouse to move the cursor on the computer monitor screen.
The parts of the computer mouse

  1. Wireless computer mouse
    This
    cordless computer mouse and use the power of infrared rays. This mouse is easy to carry everywhere keman. Other equipment from this computer mouse is a computer with usb connection
  2. Optical computer mouse
    This
    mouse uses a light sensor dala move the cursor, the mouse is now widely used and used

Keyboard

What is the keyboard?
Creation of a computer keyboard comes from the model of typewriter is invented and patented by Christopher Latham in 1868, and in 1887 the company manufactured and marketed by Remington. The keyboard is digunakanan now this is kind of QWERTY, in 1973, was inaugurated as the keyboard standard keyboard ISO (International Standards Organization). The number keys on the keyboard consists of 104 keys.
What is the function of the keyboard?
The keyboard works include letters, numbers, special characters as well as a medium for the user (users) to perform other commands are required, such as saving a file and open the file.
The types of keyboard
1. Qwerty keyboard
The keyboard is made ​​in accordance with the layout of the typewriter. Keyboard layout is spacious, so freely to type. However, key load has not been consistent in both hands. The parts of the qwerty keyboard, namely:
  1. Typewriter key
  2. Numeric key
  3. Function key
  4. Special function keys
2. Dvorak keyboard
Dvorak keyboard is designed to be more burdened than the right hand right hand. In addition, the layout is

Computer monitor


Computer monitor is in charge of computer hardware display showing the output of the video graphics controller (video card) Monitor itself does not produce an image independently to ditampilkan.Gambar these images electronically created by the best video card installed in your computer system unit .Monitor resolution refers to the size of the image can be displayed on the monitor screen and is measured in pixels, and a pixel is a dot on your monitor screen. The higher the resolution, the sharper output. A good picture lets you display the smaller elements on the screen. Resolution is expressed in number of pixels in both horizontal and vertical directions such as 800, X 600, 1024 × 768, etc.Every brand, type and size of the monitors have different resolutions. This resolution determines the sharpness of images that appear on the monitor. As for the type-species, the monitor is divided into several types including: 
1. Kathoda ray tube monitors
 This is a tube monitor performance of data processing computer that is widely used in computer screens, video monitors, televisions, and oskiloskop. Monitor type was invented by

Understanding Wireless

Wireless is a connection between a device with other devices without using cables.Wireless Personal Area Network PAN is connected to the wireless media. Wireless technology used in this PAN is IrDA and Bluetooth.Wireless LAN is connected via a computer network without wires. Local Area Network of computers and other devices that communicate via radio signals or light waves. This system is useful when connecting via cable or fiber optic connection is quite expensive, or to move the connection application. Data communication technology with no cables to connect between the client and server. Wireless LAN technology in general is similar to a computer network technology that uses a cable (Wire LAN or Local Area Networks). Wireless LAN technology is using radio frequency to send and receive data that would reduce the need for or dependency relationships through cable. As a result, users have high mobility or flexibility and not dependent on a place or location. Wireless LAN technology is also possible to form a network of computers that may not be accessible by computer networks that use a cable.Wireless Card is a card that is used to support the computer can be connected in a network. These cards

How to Make an RJ45 UTP Cable (Straight & Cross)

This time I repost from blogger friends who happened to be I want to know how to create / organize cables and RJ45 Straight Cable & Cross Order to be made ​​on a computer network terbuhung online to the internet / local. Than useful for me and you also want to learn to make their own lan network cable. Just follow the steps - steps below.

Before starting, of course we have to have a :

  •      crimping pliers
  •      UTP cable
  •      RJ-45 connector
  •      Cable Tester 


    Crimping
    pliers


    Tang krimping is a tool to cut UTP cable, and to clamp the end of the connector, and this is very