Question
1. C onvert the following base 2 numbers to base 10 and to base 16: a. 0110 1010 b. 0000 1010 0110 1100 2. C
1.
C
onvert the following base 2 numbers to base 10 and to base 16:
a.
0110 1010
b. 0000 1010 0110 1100
2.
C
onvert each of the following hexadecimal (base
16) numbers to base 2 and to base 10:
a.
0A54H
b 2C74H
3.
C
onvert the following base 10 numbers to base 2 and to base 16:
a.
253
b. 64,327
4.
C
onvert each of the following numbers to base 2 negative numbers in the twos complement format:
a.
253
10
(using
8
-
bit
s)
b. 0110 1010
2
(using
8
-
bit
s)
c.
(using 16
-
bit
s) 2C74H
5.
Floating point numbers are usually stored in computers using the IEEE
754 format.
Do some research on the IEEE 754 format and scientific notation,
and answer the
following qu
estions relate
d
to
the IEEE 754 format
:
a.
describe the single precision (binary 32) IEEE format.
b.
describe the double precision (binary 64)
IEEE format.
c.
one part of a number in the IEEE 754 format is called the
significand
. Its original proper
mathematical
na
me is
mantissa
. How is
this
value in scientific notation
different from a mantissa in a logarithm? Why does the IEEE suggest that this part of a floating point
number be
called a significand rather than a mantissa?
d.
Show what 2
3.145
* 2
2.861
equals as a power of 2
. In general, what do we do to two exponents when multiplying numbers that have the
same base?
e.
W
hat we do with the significands when
multiplying
two
numbers in scientific notation, such
a
s
:
(
3.47
*
10
2
)
* (
2.181
*
10
3
)
?
Note: Scientific notation is a
log
-
linear
numeric format, compared to a log only format
,
such as log
2
(200
) = 7.643
856
6.
Sh
ow the hexadecimal code for your
first
name
stored as
as a Unicode UTF 16 s
tring.
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