Information Technology

You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on
Blackboard via the allocated folder. These files must not be in compressed format.
• It is your responsibility to check and make sure that you have uploaded both the correct files.
• Zero mark will be given if you try to bypass the SafeAssign (e.g. misspell words, remove spaces between
words, hide characters, use different character sets, convert text into image or languages other than English
or any kind of manipulation).
• Email submission will not be accepted.
• You are advised to make your work clear and well-presented. This includes filling your information on the cover
• You must use this template, failing which will result in zero mark.
• You MUST show all your work, and text must not be converted into an image, unless specified otherwise by
the question.
• Late submission will result in ZERO mark.
• The work should be your own, copying from students or other resources will result in ZERO mark.
• Use Times New Roman font for all your answers.
Pg. 01 Question One
Question One
What is the difference between the registers in the CPU and main memory, in term of
Analyze the
computer system
structure and
2 Marks
Pg. 02 Question Two
Question Two
Based on the LMC program below and the table of op codes given in slides.
a) What is the first number placed in the out basket?
b) Change DAT in mailbox 18 to 10, What is the first number placed in the out basket?
Mailbox Contents
00 517
01 218
02 902
03 705
04 601
05 000
17 80 DAT
18 7 DAT
2 Marks
Pg. 03 Question Three
Question Three
Perform the following operations using 2’s Complement in a 5-bit register:
Explain all the steps.
1. – 0011 – 0101 (addition of 2 negative numbers)
2. – 0111 – 0010 (addition of 2 negative numbers)

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