History Computer

Previously many people who use a typewriter both normal and electric typewriter. Well, the keyboard has the function of the same form and with the typewriter. The difference is the result of the output or displayed. When we use the typewriter, we can not delete or cancel any course that is one type, and each letter or symbol of the type we see the results directly on the paper. Not so with the keyboard. What type of results we keluarannya or can we see on the screen first, then we can modify or make changes in writing, typing errors and the other. As well as "mouse", the keyboard is connected to a computer with a cable that are on the keyboard. End of the cable is inserted into the port of the computer CPU. Keyboard input is a tool that is used to type information into the computer and run the various commands to intruksi or in the computer. The creation of a computer keyboard inspired by the creation of the basic engine type design created by Christopher Latham year 1868 and many marketed in 1877 by the Remington Company. Computer keyboard is adapted from the first pelubang card (punch card) technology and allow any posts distance (Teletype). Year 1946 computer ENIAC using the hole cards (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 buttons to type the sentence, and special symbols on the other computer. Keyboard in the Indonesian language means the keyboard or the keypad. On the keyboard there are buttons letters A - Z, a - z, numbers 0 - 9, the key and special characters such as: `~ @ # $% ^ & * () _ - + = <> /,. ? :; " '\ | Keys and other special is a whole number of 104 key. While in the machine type number is a 52 button keypad. The form of keyboard is generally rectangular, but the current model keyboard is vary. Keyboard is the most famous QWERTY keyboard which has 101 units key (the key). Most keyboards have a key is arranged in part as follows:
A. Alphanumeric Key
B. Numeric Keypad
C. Function Key
D. Modifier Key
E. Cursor Key Movement


Mouse was first created in 1963 by Dauglas Engelbart of wood with one button. Both models are equipped with 3 buttons. In the year 1970, Douglas Engelbart introduced the Mouse who can know the X-Y position on a computer screen, Mouse is known by the name X-Y Position Indicator (X-Y position indicator).

The form of the most common Mouse has two buttons, each in the top left and right that can be pressed. However, computer-based Macintosh computers typically use one-button Mouse.

Working with the captured mouse movement using the ball touches the surface of the hard and flat. Mouse is a more modern does not use the ball again, but use the rays to detect the movement optically. In addition, some are already using wireless technology, both based radio, infrared rays, and bluetooth.
Currently, the technology already allows the Mouse laser system so that the resolution can reach 2000 dots per inch (dpi), which can even reach the 4800 point per inch. Mouse Usually this kind is for video game fans