PART:- B
B-Q1. 15 marks (3 x 5 marks = 15 marks)) Operating Systems:
Construct the following digital circuit with Logisim. The circuit has two outputs S and T and three inputs A, B and C.
S = /AB/C + A/B/C + /A/BC + ABC
T = /ABC + A/BC + AB/C + ABC
Generate the truth table using Logisim for inputs A, B and C and for outputs S and T.
Verify that the circuit you developed can be used as a 3-bit adder (Full adder) i.e. A and B are the two bits to be added and C being the Carry-in bit. And S is the sum of A and B and T is the carry-out bit.
B-Q2 10 marks (2 x 5 marks = 10 marks) Perform the following operations:
Convert the decimal -100.375 to IEEE 754 32-bit format. Show all the working.
Convert the following IEEE754 32-bit floating point representation into decimal: 437FF000. Show all the working.
B-Q3. 10 marks (5 x 2 Marks = 10 marks)
You are required to do a research on the topic “Operating Systems (OS)” and answer the following questions:
Write a short note on 2 Desktop operating systems, example Windows 10, Ubuntu 16, Mac OS 10.12 etc.
Compare Windows 10 operating system and Ubuntu 16 or Mac OS 10.12. State 3 advantages of Windows 10 OS and 3 advantages of Ubuntu 16 or Mac OS 10.12
State the minimum system requirement for Windows 10 or Ubuntu 16 or Mac OS 10.12
How to Install Windows 10 or Ubuntu 16 or Mac OS 10.12
Write a short note on 2 mobile phone operating systems (Mobile OS)
Your report should be limited to 4 to 5 pages and should be written in your own words. Provide graphical or tabular information, if necessary.
Marking Criteria:
Marks are allocated as indicated on each question, taking the following aspects into account:
Aspects Description
Analysis (if appropriate) Investigation, comparison, discussion
Explanation/justification Description/answer to the question
Presentation Inadequate structure, careless presentation, poor writing
Reference style (IEEE) Proper referencing if required
Plagiarism Copy from another student, copy from internet source/textbook, copy from other sources without proper acknowledgement
Grade
Mark HD
80%+ DI
70%-79% CR
60%-69% P
50%-59% Fail
< 50%
Excellent Very Good Good Satisfactory Unsatisfactory
Analysis Logic is clear and easy to follow with strong arguments Consistency logical and convincing Mostly consistent and convincing Adequate cohesion and conviction Argument is confused and disjointed
Explanation/
justification All elements are
present and well
integrated. Components
present with
good cohesion Components
present and
mostly well integrated Most components
present Lacks structure.
Reference style Clear styles with excellent source of references. Clear referencing/ style Generally good referencing/style Unclear referencing/style Lacks consistency with many errors
Presentation Proper writing. Professionally presented Properly written,
with some minor deficiencies Mostly good, but some structure or presentation problems Acceptable presentation Poor structure, careless presentation
Marking Rubric for Assignment 2 Questions-Marks as shown
The End