Page 1 of 16
MAIN ASSESSMENT
DATE: SESSION:
SUBJECT: CODE:
Digital Systems 2 EDS125A
EDS22BI
STATIONERY:
1. Non-Alphanumeric Calculator
2. Pen and Ruler
Signature:
ASSESSOR: T. G. Bihi
Assistant ASSESSOR(S): N. B. Patrick
MODERATOR: R. B. Kuriakose
QUALITY CONTROL:
STUDENT DETAILS: Question Marked Moderated
Student Number: ....................................................................... 1
2
Surname and Initials ....................................................................... 3
4
Seat Number: ....................................................................... 5
DECLARATION: I DECLARE THAT I HAVE READ THE
INSTRUCTIONS ON THE NEXT PAGE AND THAT I FULLY Total
UNDERSTAND THEM AND I WILL ABIDE BY THEM.
Percentage
Signature: .......................................................................
INSTRUCTIONS:
Duration of paper: 180 minutes Maximum marks: 100
ANSWER ALL THE QUESTIONS.
THIS PAPER CONSISTS OF 16 PAGES. Good Luck ;)
--------------------------- --------------------------
ASSESSOR MODERATOR
, Page 2 of 16
INSTRUCTION TO CANDIDATES
1. Complete all parts not in blocks. Your Student number and full names must also be written at
the top right-hand corner of each loose sheet.
2. Write neatly and clearly, using both sides of the paper. Leave both margins entirely free for the
use of the examiner.
3. You need not commence each new answer on a fresh page of the answer book. However, after
completing an answer, draw a line across the page; then, at the beginning of your new answer,
write the number of the question as given on the question paper, centering it, if possible. Keep
the answers to sub-sections of a question together; indicating the break between sub-sections
by spacing or a short line.
4. Every student shall fill in the attendance slip provided. Students will also be required by the
supervisor to present their student identification card. Students who are unable to provide such
proof of identity will be permitted to proceed with the examination but will be required
subsequently to provide proof of identity by means of an alternative form of identification.
5. Every student must read and comply to the instructions which appear on the front cover of the
answer book, as well as the instructions on the question paper. As prove students must sign in
full on the front page of the answer book.
6. No student shall commence writing answers until authorized by the supervisor. All students
shall cease writing when instructed by the supervisor. At the conclusion of the examination all
students shall remain seated until all examination booklets have been collected.
7. No student will be permitted to enter the examination room more than 30 minutes after the
published starting time.
8. No student shall leave the examination room before 30 minutes have elapsed from the
published starting time or during the last 10 minutes of any examination.
9. After the published starting time a student may leave the examination room temporarily only
with the consent of the supervisor, and shall be adequately supervised during this period.
10. Any student who wishes to leave the examination room, except temporarily, must hand to the
supervisor all examination booklets which must be correctly endorsed to identify the student.
11. A student must not take into the examination room any books, dictionaries, calculators, notes,
other documents, any written or printed matter or devices except those authorized by the
examiner.
12. During an examination a student must not make contact or speak to any other student.
13. A student must not in any way give assistance to, or receive assistance from, any other
person during an examination.
14. No student shall bring into, or remove from, an examination room any examination answer
book, answer sheets or examination attendance slip.
15. No smoking is allowed.
16. No cellular phones or any other means of communications are allowed.
--------------------------- --------------------------
ASSESSOR MODERATOR
, Page 3 of 16
Question 1 [17]
1.1. Alphabetically Name the major types of PLD’s, the sub-family devices that fall
under the type, and then give 3 Advantages of PLD’s: Acronyms are acceptable .
(9)
Major Type Sub-Family Advantages (3)
1.2. There are some slight differences between the PAL and GAL, and also between these
two devices and the PLA. Using a simple sketch for each, highlight the differences
between the PAL and PLA.
PAL Sketch (4)
--------------------------- --------------------------
ASSESSOR MODERATOR
MAIN ASSESSMENT
DATE: SESSION:
SUBJECT: CODE:
Digital Systems 2 EDS125A
EDS22BI
STATIONERY:
1. Non-Alphanumeric Calculator
2. Pen and Ruler
Signature:
ASSESSOR: T. G. Bihi
Assistant ASSESSOR(S): N. B. Patrick
MODERATOR: R. B. Kuriakose
QUALITY CONTROL:
STUDENT DETAILS: Question Marked Moderated
Student Number: ....................................................................... 1
2
Surname and Initials ....................................................................... 3
4
Seat Number: ....................................................................... 5
DECLARATION: I DECLARE THAT I HAVE READ THE
INSTRUCTIONS ON THE NEXT PAGE AND THAT I FULLY Total
UNDERSTAND THEM AND I WILL ABIDE BY THEM.
Percentage
Signature: .......................................................................
INSTRUCTIONS:
Duration of paper: 180 minutes Maximum marks: 100
ANSWER ALL THE QUESTIONS.
THIS PAPER CONSISTS OF 16 PAGES. Good Luck ;)
--------------------------- --------------------------
ASSESSOR MODERATOR
, Page 2 of 16
INSTRUCTION TO CANDIDATES
1. Complete all parts not in blocks. Your Student number and full names must also be written at
the top right-hand corner of each loose sheet.
2. Write neatly and clearly, using both sides of the paper. Leave both margins entirely free for the
use of the examiner.
3. You need not commence each new answer on a fresh page of the answer book. However, after
completing an answer, draw a line across the page; then, at the beginning of your new answer,
write the number of the question as given on the question paper, centering it, if possible. Keep
the answers to sub-sections of a question together; indicating the break between sub-sections
by spacing or a short line.
4. Every student shall fill in the attendance slip provided. Students will also be required by the
supervisor to present their student identification card. Students who are unable to provide such
proof of identity will be permitted to proceed with the examination but will be required
subsequently to provide proof of identity by means of an alternative form of identification.
5. Every student must read and comply to the instructions which appear on the front cover of the
answer book, as well as the instructions on the question paper. As prove students must sign in
full on the front page of the answer book.
6. No student shall commence writing answers until authorized by the supervisor. All students
shall cease writing when instructed by the supervisor. At the conclusion of the examination all
students shall remain seated until all examination booklets have been collected.
7. No student will be permitted to enter the examination room more than 30 minutes after the
published starting time.
8. No student shall leave the examination room before 30 minutes have elapsed from the
published starting time or during the last 10 minutes of any examination.
9. After the published starting time a student may leave the examination room temporarily only
with the consent of the supervisor, and shall be adequately supervised during this period.
10. Any student who wishes to leave the examination room, except temporarily, must hand to the
supervisor all examination booklets which must be correctly endorsed to identify the student.
11. A student must not take into the examination room any books, dictionaries, calculators, notes,
other documents, any written or printed matter or devices except those authorized by the
examiner.
12. During an examination a student must not make contact or speak to any other student.
13. A student must not in any way give assistance to, or receive assistance from, any other
person during an examination.
14. No student shall bring into, or remove from, an examination room any examination answer
book, answer sheets or examination attendance slip.
15. No smoking is allowed.
16. No cellular phones or any other means of communications are allowed.
--------------------------- --------------------------
ASSESSOR MODERATOR
, Page 3 of 16
Question 1 [17]
1.1. Alphabetically Name the major types of PLD’s, the sub-family devices that fall
under the type, and then give 3 Advantages of PLD’s: Acronyms are acceptable .
(9)
Major Type Sub-Family Advantages (3)
1.2. There are some slight differences between the PAL and GAL, and also between these
two devices and the PLA. Using a simple sketch for each, highlight the differences
between the PAL and PLA.
PAL Sketch (4)
--------------------------- --------------------------
ASSESSOR MODERATOR
