UNIVERSITY EXAMINATIONS
OCTOBER/NOVEMBER 2023
COS2621
Computer Organization and Architecture
Welcome to the COS2621 exam.
Examiner name: Ms Promise Mvelase
Internal moderator name: Prof Felix Bankole
External moderator name: n/a
This paper consists of 8 pages plus an appendix (i – vi).
Total marks: 100
Number of pages: 8 pages plus an appendix (i – vi).
Instructions:
• Use word Document to answer the questions
• Convert to Pdf before submitting
• Marks are awarded for part of an answer, so do whatever you are able to in each question
• The appendix contains a list of IBM PC Assembly Language instructions.
Additional student instructions
1. Students must upload their answer scripts in a single PDF file (answer scripts must not be
password protected or uploaded as “read only” files)
2. Incorrect file format and uncollated answer scripts will not be considered.
3. NO emailed scripts will be accepted.
4. Students are advised to preview submissions (answer scripts) to ensure legibility and that
the correct answer script file has been uploaded.
5. Incorrect answer scripts and/or submissions made on unofficial examinations platforms
(including the invigilator cell phone application) will not be marked and no opportunity will
be granted for resubmission. Only the last answer file uploaded within the stipulated
submission duration period will be marked.
6. Mark awarded for incomplete submission will be the student’s final mark. No opportunity for
resubmission will be granted.
7. Mark awarded for illegible scanned submission will be the student’s final mark. No
opportunity for resubmission will be granted.
8. Submissions will only be accepted from registered student accounts.
9. Students who have not utilised the proctoring tool will be deemed to have transgressed
Unisa’s examination rules and will have their marks withheld. If a student is found to have
been outside the proctoring tool for a total of 10 minutes during their examination session,
they will be considered to have violated Unisa’s examination rules and their marks will be
withheld. For examinations which use the IRIS invigilator system, IRIS must be recording
throughout the duration of the examination until the submission of the examinations scripts.
10. Students have 48 hours from the date of their examination to upload their invigilator results
OCTOBER/NOVEMBER 2023
COS2621
Computer Organization and Architecture
Welcome to the COS2621 exam.
Examiner name: Ms Promise Mvelase
Internal moderator name: Prof Felix Bankole
External moderator name: n/a
This paper consists of 8 pages plus an appendix (i – vi).
Total marks: 100
Number of pages: 8 pages plus an appendix (i – vi).
Instructions:
• Use word Document to answer the questions
• Convert to Pdf before submitting
• Marks are awarded for part of an answer, so do whatever you are able to in each question
• The appendix contains a list of IBM PC Assembly Language instructions.
Additional student instructions
1. Students must upload their answer scripts in a single PDF file (answer scripts must not be
password protected or uploaded as “read only” files)
2. Incorrect file format and uncollated answer scripts will not be considered.
3. NO emailed scripts will be accepted.
4. Students are advised to preview submissions (answer scripts) to ensure legibility and that
the correct answer script file has been uploaded.
5. Incorrect answer scripts and/or submissions made on unofficial examinations platforms
(including the invigilator cell phone application) will not be marked and no opportunity will
be granted for resubmission. Only the last answer file uploaded within the stipulated
submission duration period will be marked.
6. Mark awarded for incomplete submission will be the student’s final mark. No opportunity for
resubmission will be granted.
7. Mark awarded for illegible scanned submission will be the student’s final mark. No
opportunity for resubmission will be granted.
8. Submissions will only be accepted from registered student accounts.
9. Students who have not utilised the proctoring tool will be deemed to have transgressed
Unisa’s examination rules and will have their marks withheld. If a student is found to have
been outside the proctoring tool for a total of 10 minutes during their examination session,
they will be considered to have violated Unisa’s examination rules and their marks will be
withheld. For examinations which use the IRIS invigilator system, IRIS must be recording
throughout the duration of the examination until the submission of the examinations scripts.
10. Students have 48 hours from the date of their examination to upload their invigilator results
