Keyboard classification:
According to the number of keys on the keyboard, it can be divided into 86-key keyboard, 101-key keyboard, 104-key keyboard, and Win98 keyboard.
86-key keyboard: an early keyboard with 86 keys;
101-key keyboard: 101 keys: several commonly used keys and numeric keys are separated and combined into the third area of ??the keyboard - Numeric keypad area, so there are 101 keys;
104-key keyboard: After the launch of Win95, three function keys were added, which is currently the most popular keyboard. ;
Win98 keyboard: This is a new keyboard launched by some manufacturers after the launch of the Win98 operating system. 5 more keys than Win95 keyboard.
The number of keys on the keyboard has appeared
83 keys, 87 keys, 93 keys, 96 keys, 101 keys, 102 keys, 104 keys, 107 keys, etc. The 104-key keyboard is based on the 101-key keyboard and adds three shortcut keys (two of which are duplicated) for the WINDOWS 9.Xp platform, so it is also called the WINDOWS 9X keyboard. However, not many users are accustomed to using the WINDOWS key in practical applications.
The 107-key keyboard is a keyboard with three additional keys for Japanese input. In some systems that require a large number of single numbers to be entered, there is also a small numeric input keyboard, which basically separates the small keyboard from the standard keyboard to reduce size and cost.
Reference for the above content: Baidu Encyclopedia-Keyboard