Thư viện tri thức trực tuyến
Kho tài liệu với 50,000+ tài liệu học thuật
© 2023 Siêu thị PDF - Kho tài liệu học thuật hàng đầu Việt Nam
Oleary2012Comp ppt ch09
Nội dung xem thử
Mô tả chi tiết
Copyright © 2012 The McGraw-Hill Companies, Inc. All rights
reserved. McGraw-Hill
Chapter 9
Communications and
Networks
Copyright © 2012 The McGraw-Hill Companies, Inc. All rights
reserved.
C
o
m
p
u
tin
g
E
s
s
e
n
tials
2
0
1
2: C
o
m
p
u
tin
g
E
s
s
e
n
tials
2
0
1
2: M
a
kin
g IT
W
o
r
k
f
o
r
Y
o
u
M
a
kin
g IT
W
o
r
k
f
o
r
Y
o
u
McGraw-Hill 9-2
Introduction
• We live in a truly connected
society.
• Increased connectivity potentially
means increased productivity,
especially in business.
• You will learn more about the
concept of connectivity and
the impact of the wireless
revolution in this chapter.
Copyright © 2012 The McGraw-Hill Companies, Inc. All rights
reserved.
C
o
m
p
u
tin
g
E
s
s
e
n
tials
2
0
1
2: C
o
m
p
u
tin
g
E
s
s
e
n
tials
2
0
1
2: M
a
kin
g IT
W
o
r
k
f
o
r
Y
o
u
M
a
kin
g IT
W
o
r
k
f
o
r
Y
o
u
McGraw-Hill 9-3
Communications
• Computer communications is the
process of sharing data, programs, and
information between two or more
computers
• Numerous applications depend on
communication systems, including
– Instant messaging
– Internet telephone
– Electronic commerce
– Global positioning systems (GPS)