Identifisering van Tipes Keyboard

Creation of a computer keyboard in typewriter inspired by the creation of the basic design is made and patented by Christopher Latham in 1868 and many are marketed in 1877 by the Remington Company.

The first computer keyboards adapted from punching cards (punch cards) and writing distance delivery technology (Teletype). In 1946 the ENIAC computer using a card reader makers hole (punched card reader) as a means of input and output.

When you hear the word "keyboard" then our minds can not be separated from the existence of a computer, because the keyboard is a board consisting of the keys to type a sentence and other special symbols on the computer. Keyboard in the Indonesian language means the keyboard or keypad. On the keyboard buttons have the letters A - Z, a - z, numbers 0-9, keys and special characters such as: `~ @ # $% ^ & * () _ - + = <> /,. ? :: "'\ |, And other special buttons that total number was 104 button. While on Typewriter key number is 52 keys. Keyboards generally rectangular shape, but the current model keyboard is very varied.

Previously, people who use typewriters both regular and electric typewriters. Well, the keyboard has a similar form and function to a typewriter. The difference is the result of output or appearance. If we use a typewriter, we can not remove or undo anything that has type and every single letter or symbol you type in the result we saw in the paper directly. Not so with the keyboard. What we type in the result or output can be seen on the monitor screen first, then we can modify or make changes to a form of writing, typing and other errors. Like the "mouse", the keyboard is connected to a computer with a cable located on the keyboard. Cable end is inserted into the port located on the computer CPU.

Physically, the keyboard is divided into 4 parts, namely:

1. Serial Keyboard

Using the DIN 5 male and is usually used on the AT type computer.

Serial port on the keyboard

2. PS / 2 Keyboard

Usually used on ATX computer and is currently the most widely used. Installation of the keyboard of this type should be carried out carefully, because the port is owned by the same port for the mouse.

Keyboard port on the PS2 and the connector on the motherboard

3. Wireless Keyboard

As the name implies, this type of keyboard does not use cable as a liaison between the keyboard with the computer. Type of connection used is infra red, wifi or bluetooth. To connect the keyboard to the computer, it takes a radio transmitter and receiver. Transmitter unit is usually found on the keyboard itself, while the receiver is usually installed on a USB or serial port on the CPU.

Keyboard and mouse wireles

4. USB Keyboard

Latest Computers are now widely that use USB connector type which ensures faster data transfer.

USB connector