Reference no: EM132364761

IT Fundamentals Assignment -

Learning outcomes - Upon successful completion of this subject, students should:

• be able to investigate and describe the essential elements of a computer and their functionalities;
• be able to apply an understanding of data representations and calculations to practical situations;
• be able to develop an elementary computer program;
• be able to discuss the features of various software development methodologies;
• be able to discuss and analyse fundamental networking concepts, protocols and standards;
• be able to discuss the principle lifecycle phases of an information system, from requirements and acquisition through to operation and maintenance;
• be able to compare and contrast the role of IT service management frameworks, policies and compliance issues.

Assignment 1: Computers, data and programming

Answer the following Questions

Question 1 -

a) A Computer uses IEEE-754 single precision format to represent floating points. What value (in decimal) the computer represents if the floating point is represented using the following binary digits. Show all the steps used in finding the answer.

0 01111110 10100000000000000000000

b) Convert the following numbers. (Please show all steps; no marks will be awarded if no steps are shown)

i) 0xAD9 into 3-base representation

ii) 4518 into 2-base (binary) representation

iii) 123.35 into octal representation (up to 3 octal points)

iv) 14.358 into decimal representation

Question 2 -

Write a MARIE program that accepts an integer from the user, and if it is a prime number the program will output 1, otherwise, the program will output 0.

Examples:

If the user input is 17, the output would be 1

If the user input is 2, the output would be 1

If the user input is 15, the output would be 0

If the user input is -2, the output would be 0

You should write and run the program using MARIE simulator. Add enough comments to understand your code.

You do not have to include the .mas file in the submission. Instead, the code should be presented as a word-processed section in the assignment, not as an image.

Insert images to show you have tested the code with several possibilities.

Question 3 -

a) Explain with an example of what is meant by high-order interleaving and low-order interleaving in memory organisation.

b) Suppose we have a memory consisting of 32 4Kx8-bit chips.

Show the address structure and module organisation when

i. high-order interleaving is used

ii. low-order interleaving is used.

Rationale - This assessment task will assess the following learning outcome/s:

• be able to investigate and describe the essential elements of a computer and their functionalities.
• be able to apply an understanding of data representations and calculations to practical situations.
• be able to develop an elementary computer program.

Assignment 2: Network Protocols and SDLC

Answer the following questions:

1. Explain why we need a 3-way handshake in TCP? Why not just 2-way?

2. What is RAD? List an advantage and a disadvantage of using RAD.

3. Discuss two advantages and two disadvantages of agile methods.

4. What is scope creep in software development? Explain three ways to deal with scope creep.

5. AAA Medical Devices is a manufacturer of portable and wearable medical monitoring devices. They have developed a glucose monitor embedded in a wristband. The device is powered by body heat and senses glucose levels from minute quantities of perspiration. AAA wants to develop a Real-Time Glucose Monitoring (RTGM) system which will be using this device. AAA is planning to see the software to other health systems worldwide. The software should be accessible on smartphones with Bluetooth capability.

The project has commenced, and you are appointed as a Systems Analyst to understand the requirements of the new system.

Think about the potential users of the system and discuss three fact-finding techniques that you would use to collect the requirements of the new system.

Rationale - This assessment task will assess the following learning outcome/s:

• be able to discuss the features of various software development methodologies.
• be able to discuss and analyse fundamental networking concepts, protocols and standards.
• be able to discuss the principle lifecycle phases of an information system, from requirements and acquisition through to operation and maintenance.
• be able to compare and contrast the role of IT service management frameworks, policies and compliance issues.

Note - Need Only Assignment 1: Computers, data and programming.