Data transfer
Data transfer
Inside a system
Memory
CPU
Monitor
Among different
system
PC
26
EE-221 Logic Design
Muhammad Bilal Saif
Printer
Figure
Figure 1-12 Illustration of serial and parallel
of serial and parallel
transfer of binary data. Only the dat
3.BinaryMultiplication
Basic Rules
0
0
0
1
0
0
0
1
0
1
1
1
If
If the multiplicands have more than 1 bits than we
have to use multiply, shift and add techniques
EE-221 Logic Design
Muhammad Bilal Saif
37
Binary
BinaryMultiplicationExample
x
1101011
1011
11
Decimalvalueof1scomplement
number
Example1:
Convertthe1scomplementnumber0101_0111
intocorrespondingdecimalnumber
=-(27 x 0) + (26 x 1) + (25 x 0) + (24 x 1) + (23 x
1) + (22 x 1) + (21 x 1) + (20 x 1)
= 64+16+ 4 + 2 + 1
= 87
EE-221 Logic Design
Muhammad
Logic Design [EE221]
Logic Design [EE221]
(Fall 2009)
Muhammad Bilal Saif
Faculty of Electronics
engineering, GIKI
1
Chapter # 01
Introductory Digital Concepts
Di
2
EE-221 Logic Design
Muhammad Bilal Saif
What is meant by logic design
Logic design
Digital