Logic Systems N2 — Memo

April 2020 — N2 — Logic Systems

N2 2020 Nated Engineering

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This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.1.6

1.2X = 17 ; Y =23 and Z = 9 Code Code Code (3\

1.2.110001 + 10111 101000 1 0 1 0 0 0 = 32 + 8 = 40 1 1 1 0 = 8 + 4 + 2 = 14

Q2— Section header —

2.1.2

2.20011 0001 531 = 010100110001 7421BCD

2.3.21010 0101 1000 0011 0011 0111 0010 0101 21 8421 8421 725 = 101001011000 XS3CODE

2.3.3

1.3(7\ [25]25

2.4It is because the binary digits are representing a binary code and not a binary number. (2\

2.5Inputs 0 1 2 3 4 5 6 7 8 9 (10\

Q3— Section header —

3.1.1When the p set input is active (i.e. logic 1\, the output of the flip flop is forced t o logic 1 immediately.

3.1.2When the clear signal is active (i.e. logic 0\, the output of the flip flop is forced to logic 0 immediately. (2 (4\

3.3.3(9\

3.4Capacity Cost Convenience/Inconvenience [25]25

Q4— Section header —

4.1.1In Johnson counter the numbe f states determined by 2N, therefore 4 = 8. Series

4.1.4

4.2(10\ 5] TOTAL Four bit JK up counter

Mark Allocation

Sections25 + 25 = 50 marks

Key Information

Contact Number0101001100 · 0100101100

Paper information

TitleMemo

SubjectLogic Systems

LevelN2

Document typeNated Engineering

Year2020

MonthApril

Pages6

Downloads3

Examination context

Decade2020s

Years ago6y

SeasonAutumn (SH)

Start dayWednesday

Exam periodApril 2020

Days since exam2,384

About Logic Systems examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size242.5 KB

Pages6

Archived on8 September 2026

File age47d

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