Chapter # 16 (Keyboard 101/102 Buttons)

IBM 101-102 Buttons Keyboard
This Keyboard was introduced by IBM in 1986 on the place of XT or AT Keyboards. There are 101/102 buttons on this Keyboard. It become famous quickly and was very good as compared to 84 Keyboard. Its "ENTER" button was very much clear and good in size but this Keyboard's overall size was smaller as compared to others and many changes were placed by IBM in this keyboard in order to make ita a state of the art keyboard for future generations.

Today, different designs of this Keyboard are available in the market with a slightly different sequence of buttons and designs. Some designs are connected with "Five Pen Connector Keyboard"  and some with "Six Pen Connector Keyboard" with Systems.

101/102 Keyboards possess 4 big sections which are;

1. Typing Area
2. Numeric Keypad
3. Cursor Keypad Controls
4. Functions

Alt & Ctrl buttons are placed in right and left size further, and extra Enter button has added in it on Numeric Pad section. F1 to F12 buttons were also included in it and functions keys were divided in 4 different lines/wires.

"Esc" button is placed on left side like a group shape. This design of Keyboard ios most popular in the world. This keyboard can is used too much as compared to others. I am writing this article also with this type of Keyboard and hope you are also operating computer with any one of them.

This Keyboard can be exchanged from one system to an other system  very easily. Therefore, it may not possible to change this type of design, shape and sequence in the future for keyboards.

Chapter # 15 ( Keyoard Part-2 )

AT Keyboard 84 Keys

84 keys Keyboard was introduced in 1984 by IBM. There were 84 buttons in this keyboard and many problems of previous computers and keyboards were solved with it. In this Keyboard, the button of "ENTER" was replaced with a large space.

Position and sizes of "Shift" buttons were also changes. IBM introduced LEP wires for Scroll Lock and Caps Lock buttons in it. IBM's 84 Keyboard's distinctive competency was that, its processor was placed in Keyboard itself. These two processors could easily communicate & exchange data with each other. Mother Board's processor 8042 Keyboard can also called as "Controller Chip" This chip can send data and guild lines to Keyboard through which functions of Keyboard can be changed. This controller also possess qualities of Scan Contraction which can transfer different foreign languages to its Keyboard.

Actually scan transactions are some electronic lights which travels from mother board to keyboard. For correction of these electro lights functions, LED symbols were included in that Keyboard. Although 84 buttons Keyboard was a good keyboard of that time but, was still facing some criticism on the size and sequence of buttons.