semiconductor
semiconductor memory
send
sender–receiver terminal
sensitive data
sequential
sequential searching
serial
serial I/O port
serial interface
serial port
serial printer
serial processing
server
server error
session
set up
setup
sgml
shape
shared access
shared database
shared file
shareware
Shift key
short circuit
short menu
shut down
sign
sign bit
sign off
sign on
signature
signature file
silicon
silicon chip
silicon dioxide
simulation
simulator
single-sided disk
singular matrix
sinus
sitename
size
slash
slave
slot
slow memory
slow storage
SLSI
small scale integration
smart
smtp
software
software development tool
software piracy
software program
software protection
software publisher
software publishing
software specification
sort
sound
sound board
sound buffer