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which of the following is the open source operating system
a. Microsoft windows
b. Ubuntu
c. MAC OS x
d. iOs
e. Android
Define software and explain different types of software. (course name Software engineering)
Let
X
and
X

be collections of transition systems. Why is
h
(
s
) =
h

T
X

(
σ
(
s
)) not necessarily
an admissible heuristic for
T
X
if the transformation from
X
to
X

is not safe? Discuss the
question for each of the following reasons why a transformation with functions
σ
and
λ
can
be unsafe:

c

(
λ
(
l
))
> c
(
l
) for at least one
l

L

there is a transition

s,l,t

of
T
X
such that

σ
(
s
)

(
l
)

(
t
)

is not a transition of
T
X

,
or

there is a goal state
s
of
T
X
such that
σ
(
s
) is not a goal state of
T
X

.
Q.2 How Buffering can improve the performance of a Computer system (operating system)
what is the difference between real time sharing and time sharing system? (Course Name: Operating System)
what is the diffrence between job and the process? (Course name: Operating System)
Divide 1161_8 by 31_8 . Express the obtained result in decimal number.
Q1. What is the diffrence between job and process?

Q2. What are the diffrences between real time sharing and time sharing?

Q3. How buffering can improve the performance of the computer system?


All questions are related from the course Operating System
What is the difference between the four types of computer generations in terms of computating time
Find several provisions of the Software Engineering Code of Ethics and Professional Practice

(Appendix A.1) that were violated in the Therac-25 case.
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