Digital Electronics N5 — Memo

August 2021 — N5 — Digital Electronics

N5 2021 Nated Engineering

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Q1— Section header —

1.1010

Q2— Section header —

2.174, 75 = 1 0 0 1 0 1 0, 1 1 Answer: 1 1 0 1 0 0 1 1 0 1 1 0 0, 1 1 1 = 1 A 6 C, E (6\

2.23D0, 4 = 1 1 1 1 0 1 0 0 0 0, 0 1 Answer: 1 1 0 0 1 0 0 , 0 0 1 = 1 4 4, (6\

2.3122, 75 = 1 1 1 1 0 1 0, 1 1

Q3— Section header —

3.1ABCD Note: To create an inverted input the inputs of a two input NAND gate should connected together. The inverter shown by these inputs is purely to make the drawing simpler. Answer: 1 0 1 1 0 1 0 0 1 8 0

3.2F (A,B,C\

Q4— Section header —

4.1.1[19] dd (1\ (0\ Input Output19

Q5— Section header —

5.1Primary Secondary memory Hard drive, CD ROM, floppy disk, stiffy disk, paper tape, unch card, memory stick , etc. Any ONE for primary and any ONE

5.3ROM (1\

5.4Encoding, SRAM access time is small while DRAM has a large access time. [10]10

Q6— Section header —

Q7— Section header —

7.2The rate at which bits are sent. (1\ [8]8

Q8— Section header —

Mark Allocation

Sections10 + 18 + 18 + 19 + 10 + 11 + 8 + 6 = 100 marks

Paper information

TitleMemo

SubjectDigital Electronics

LevelN5

Document typeNated Engineering

Year2021

MonthAugust

Pages6

Downloads1

Examination context

Decade2020s

Years ago5y

SeasonWinter (SH)

Start daySunday

Exam periodAugust 2021

Days since exam1,897

About Digital Electronics 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 size343.6 KB

Pages6

Archived on8 September 2026

File age47d

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