swap ().       
   .        
  . .  "swap"   "   "
 12.

swap space ( ).   (   ),  
   ,    .   -
         
       ,   
 .   . FOLDOC

switch (). .  .

symbolic link ( ).  ,    
.          ,
   .      ,    -
       .

system administrator ( ). ,   
.         -
. . .

system console ( ).   ,  
         . 
,  .

system mode ( ).   ,    -
  .   :   ,
 NFS  autofs,        
 . .   .

System V.       UNIX.

 Shell, tcsh. ,      shell  BSD
UNIX.

TCP.    (Transmission Control Protocol).  -
   ,   Internet.    -
 ,    IP      -
 TCP/IP (TCP  IP). TCP     
,        
.  ,   IP,  UDP,    -
 . roLDOC

tera- (-).     "-"    240,    1
099 511 627 776.       "". 
 . .   .

termcap.   (terminal capability).  /etc/termcap  
     .  System V    -
  terminfo.

terminal ().       
Linux        . 
  Linux .

terminfo.   .  /usr/lib/terminfo   -
,       ,      -
         -
.    -  ,
  vi.   termcap.

text box ( ).  GUI  ,     .

996  VII. 