Syllabus map

From Syllabus.pdf (ENEX 152): 45 lecture hours → 60 exam marks. Orange bars are the 10-mark chapters — prioritise these.

Ch1·7 Ch2·4 Ch3·5 Ch4·10 Ch5·7 Ch6·10 Ch7·10 Ch8·7

1. Introduction 5 hrs 7 marks

Digital vs analog · logic levels · ICs · clock triggering · applications
Codes: binary/octal/hex, BCD, Excess-3, Gray, ASCII/EBCDIC
1’s / 2’s complement · signed numbers

Gemini Module 1 PDF Theory Short §1 ChatGPT PDF

2. Logic Gates 3 hrs 4 marks

Basic / universal / exclusive gates · positive & negative logic
De Morgan’s laws · applications

Gemini Logic.html Theory Short §2 PQA: universal gates

3. Boolean Algebra & K-Maps 4 hrs 5 marks

Laws · SOP/POS · minterms/maxterms
4-variable K-map · pairs/quads/octets · don’t cares · redundant groups

Gemini Bool.html Theory Short §3 K-map in every PQA

4. Combinational Logic Circuits 8 hrs 10 marks

Adders / subtractors · ripple & fast adders
MUX · DEMUX · encoders · priority encoders · decoders · 7-seg · comparators

Gemini Combinational Theory Short §4 MUX full adder (P2) MUX full subtractor (P1)

5. Sequential Logic Circuits 5 hrs 7 marks

Latches & FF: SR, D, T, JK · excitation · master-slave · timing
FF conversions · applications

Gemini Sequential Theory Short §5 D→JK (P1) SR→JK (P2)

6. Registers and Counters 7 hrs 10 marks

SISO / SIPO / PISO / PIPO · timing diagrams
Async & sync counters · up/down · mod-n · applications

Gemini Register.html Theory Short §6 All 4 papers

7. Sequential Machine Designs 8 hrs 10 marks

State diagrams · flow tables · reduction · assignment · excitation maps
Sequence detectors (1-bit / 2-bit) — asked in every past paper

Gemini seqmachine.html Theory Short §7 011 (T) 110 (SR) 010 (D) 101 (SR)

8. Digital Integrated Circuits 5 hrs 7 marks

BJT / MOSFET switching · TTL & CMOS parameters & gates
Three-state · displays · frequency counters · time measurement

Gemini BJT.html Theory Short §8 CMOS NAND (P3) TTL NOR (P4)

From the past papers (PQA pic.jpg)

Scanned originals of four TU finals. Always-asked: sequence detector, sync counter, async/ripple counter, shift register + timing, K-map, MUX/encoder/decoder. Open scans beside solved answers.