Using information technology :
Williams, Brian K.
Using information technology : a practical introduction to computers & communications / Brian K. Williams, Stacey C. Sawyer. - 9th ed. - New York : McGraw-Hill, 2011. - xxviii, 577 p.
0071221399 :
Computers.
Information technology.
Telecommunication systems.
Using information technology : a practical introduction to computers & communications / Brian K. Williams, Stacey C. Sawyer. - 9th ed. - New York : McGraw-Hill, 2011. - xxviii, 577 p.
0071221399 :
Computers.
Information technology.
Telecommunication systems.