Logic Gates in 3 Inputs & Truth Table – HSC ICT 2023
Basic Logic Gates in Truth Table OR GATE(3 Input) AND GATE(3 Input) Compound Logic Gates in Truth Table
October 22, 2022
সংখ্যা পদ্ধতি · Writing numbers with digits: binary, octal, decimal and hexadecimal.
সংখ্যা পদ্ধতির রূপান্তর · Converting a number from one base to any other base.
কোড · Special binary patterns that represent characters, numbers and symbols inside a computer.
বুলিয়ান অ্যালজেবরা · Algebra of true and false (1 and 0) created by George Boole.
লজিক গেইট · Circuits that take one or more inputs and give a single output.
মৌলিক ও সর্বজনীন গেইট · OR, AND and NOT gates, plus NOR and NAND that can build every other gate.
XOR, XNOR ও ট্রুথ টেবিল · Special gates and the truth tables that show every input and output.
ডিজিটাল ডিভাইস · Building blocks such as encoder, decoder, multiplexer, adder, flip-flop and register.
জ্ঞানমূলক প্রশ্ন ও উত্তর: what a number system is, bases, digits and key definitions.
অনুধাবনমূলক প্রশ্ন ও উত্তর: explain-type questions, such as why 1 + 1 = 10 in binary.
জ্ঞানমূলক প্রশ্ন ও উত্তর: Boolean algebra, logic gates and digital device basics.
অনুধাবনমূলক প্রশ্ন ও উত্তর: explain-type questions, such as why NOR and NAND are universal gates.
Practice OR, AND, NOR, NAND, XOR and XNOR truth tables with three inputs.
Important ICT abbreviations and acronyms that often appear in MCQ.
Basic Logic Gates in Truth Table OR GATE(3 Input) AND GATE(3 Input) Compound Logic Gates in Truth Table
Exclusive Logic Gate(বিশেষ গেইট) XOR Gate এবং X-NOR Gate কে Exclusive Logic Gate(বিশেষ গেইট) বলা হয়। সাধারনত বাইনারী যোগের বর্তনীতে
Universal Logic Gate (সর্বজনীন গেইট) যে সকল গেইট ব্যবহার করে মৌলিক গেইট সহ অন্য সকল ধরনের গেইট তৈরি বা বাস্তবায়ান
Basic Logic Gate( মৌলিক গেইট) যে সকল গেইট বুলিয়ান অ্যালজেবরার মৌলিক অপারেশনগুলো এককভাবে সম্পাদন করতে পারে তাকে মৌলিক গেইট বলে।
Definition Of Logic gate: বুলিয়ান বীজগনিতের ব্যবহারিক প্রয়োগ বা গাণিতিক কাজ করার জন্য জন্য যে আধুনিক বর্তনীগুলো ব্যবহার করা হয়
Simplification Of Logic Function লজীক ফাংশন সরলীকরন
Chapter 3 is Number Systems and Digital Devices (সংখ্যা পদ্ধতি ও ডিজিটাল ডিভাইস). It explains how computers represent numbers and text using binary, and how logic gates and digital devices process data.
The binary number system has base 2, so it uses only the digits 0 and 1. Adding 1 and 1 gives 2, which is written as 10 in binary.
The basic logic gates are the OR gate, the AND gate and the NOT gate. They do not depend on any other gate.
NOR and NAND are called universal logic gates because every other gate, including the basic gates, can be built using only NOR gates or only NAND gates.
Boolean algebra is the branch of mathematics created by George Boole. It is based on two levels, true and false, which are written as 1 and 0 in digital logic.
ShaktiICT has knowledge-based (জ্ঞানমূলক) and comprehension (অনুধাবনমূলক) questions and answers for both number systems and digital devices. You will find them in the practice section of this page.
HSC ICT Chapter 3, Number Systems and Digital Devices, shows how a computer stores numbers and text in binary and how digital circuits make decisions. You will study number systems, number conversion, codes, Boolean algebra, logic gates, truth tables and common digital devices.
Start with number systems, then learn number conversion and codes. Move on to logic gates, the basic gates, universal gates and XOR and XNOR gates. Practice with the number systems comprehension questions and the digital devices comprehension questions. Before the exam, revise with the HSC ICT suggestion PDF, the MCQ question and answer PDF and the free HSC ICT book PDF. You can also browse every chapter on the HSC ICT lessons page.
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