   X3   PS/2 
       4 ( ) -128.


3.1  = X4.C10   
3.2  = X4.C10 (   9,    10)
3.3  = X4.B1   
3.4  = X4.B2   
3.5  = X4.B3   
3.6  = X4.B4   
3.7  = X4.B5   
3.8  = X4.B6   
3.9  = X4.B7   
3.10 = X4.B8  
3.11 = X4.A1   
3.12 = X4.A4   
3.13 = X4.A3   
3.14 = X4.A4   
3.15 = X4.A10   
3.16 = X4.A10 (   A9,    A10)
3.17 = X4.A5   
3.18 = X4.A6   
3.19 = X4.A7   
3.20 = X4.A8   
3.21 = X4.B9   
3.22 = X4.C7   
3.23 = X4.C8   
3.24 = X4.C6   

  4    
   -128,  
   N1  1990.


    
   .    
   PC- QWERTY,    -
     (..  
 -86     
   ,     ).
..      (   
),       "  
  ,   /  ".

 QWERTY-   
Scroll Lock.   Scroll Lock 
       
 -.    ,
       (QWERTY), 
 -  ().