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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

The difference between UTP cable with STP cable

Differences UTP cable with STP cable.


Differences in STP cables with UTP cable is if the STP cable with a protective aluminum diselaputi, whereas UTP cable is not. whether the use of aluminum on the membranes that cover the STP cable? . The point is to avoid the radiation field around the magnet on the cable. but the price of kebel STP is more expensive than UTP cable. how the composition of the cord? . same as the existing arrangement on UTP cable.

Cable types in the Network

Various Kinds Network Cable
The cable is one of the media for data transmission network, which is used to connect one computer to other computers, send the information to function in the form of electrical signals between the network computer. network cables are used there are 4 kinds:
  1. Coaxial cable
    Coaxial cable is a network that is coated with 2 levels of insulation. At first there seraut insulation conductor that serves as a conductor to reduce the influence of electromagnetic, there are two plastic insulation that serves as a protector to avoid scratches from cables.

  2. Fiber optic cable
    Is the cable network are made using materials from the filament

Intel vs AMD Processor Comparison



Both Intel and AMD use different views to the processor, the architecture of the processor itself. In this case, nothing can be said to be superior or not. AMD integrates the memory controller into its processors, so that the data path between the processor with the chipset to be shorter. Intel does not integrate the memory controller into the processor (although now that view has changed with the presence of Core i7 / codename Nehalem) and focus more on growing internal memory on the processor. Both Intel and AMD, have their respective advantages. For AMD, the cultivation of the memory controller is often referred to as HyperTransport into the processor makes data transfer rate is faster (because it does not have to wait for the data from main memory), but it makes the internal memory on the processor becomes small. For Intel, the integration of the processor internal memory (obtained from the cultivation of a large number of transistors) makes it powerful in terms of multi-threading applications as it pertains to the primary function of the internal memory of the processor itself (as a temporary data storage to be processed by the processor), but less Digdaya in its price range. I as the authors acknowledge, with Intel over AMD technology level. Therefore,

Definition VGA Card

as we know Vga card is a hardware device that is essential for the computers that we have?according to my own VGA card to his ituh to display images to the screen in VGA ituh speak their own?beberpah certain types of vga speak it was like there was a 256 MHz speed up to 1024 more depending on what we want right?
Definition VGA is an analog interface to the graphics card that is commonly used to connect the computer to a monitor that uses 15-pin plug and socket. VGA standard was originally developed by IBM in 1987 and allows for a screen resolution of 640 × 480 pixels. Since then, many revisions of the standard has been introduced.
VGA stands for Video Graphics Accelerator, serves to process data and graphics displayed on a monitor,