### Digital Electronics – Applications and advantages of digital systems

A digital system is a combination of devices designed to manipulate logical information or physical quantities that are represented in digital form; that is, the Read More »

### Digital Electronics – Number System (Binary And Hexadecimal)

Why Binary? The number system that you are familiar with, that you use every day, is the decimal number system, also commonly referred to as Read More »

### Digital Electronics – Logic Gates

BOOLEAN CONSTANTS AND VARIABLES Boolean algebra differs in a major way from ordinary algebra because Boolean constants and variables are allowed to have only two possible Read More »

### Digital Electronics – Universal Property Of NAND And NOR Gates

1- The NAND Gate as a Universal Logic Element The NAND gate is a universal gate because it can be used to produce the NOT, the Read More »

### Digital Electronics – Logic Simplifications

Boolean Addition In Boolean algebra, a sum term is a sum of literals. In logic circuits, a sum term is produced by an OR operation with Read More »

### Digital Electronics – Codes and Parity

BINARY CODES In the coding, when numbers, letters or words are represented by a specific group of symbols, it is said that the number, letter Read More »

### Digital Electronics – Arithmetic Circuits

1 BINARY ADDERS One of the most important tasks performed by a digital computer is the operation of adding two binary numbers.   The simplified Read More »

### Digital Electronics – Decoders-Encoders

As its name indicates, a decoder is a circuit component that decodes an input code. Given a binary code of n-bits, a decoder will tell which Read More »

### Digital Electronics – Multiplexers and De-multiplexers

A multiplexer or MUX, also called a data selector, is a combinational circuit with more than one input line, one output line and more than Read More »

### Digital Electronics – Latches and Flipflops

FLIPFLOPS The basic 1-bit digital memory circuit is known as a flip-flop. It can have only two states, either the 1 state or the 0 state. Read More »

### Digital Electronics – Counters

Counting is frequently required in digital computers and other digital systems to record the number of events occurring in a specified interval of time. Normally Read More »

### Digital Electronics – Shift Register

REGISTERS A register is a group of binary storage cells capable of holding binary information. A group of flip-flops constitutes a register, since each flip-flop can Read More »

### Digital Electronics – Memories

READ-ONLY MEMORY (ROM) A read-only memory (ROM) is a device that includes both the decoder and the OR gates within a single IC package. The connections Read More »

### Digital Electronics – A/D and D/A converters

What is ADC ? An electronic integrated circuit which transforms a signal from analog (continuous) to digital (discrete) form. Analog signals are directly measurable quantities. Digital Read More »

### Digital Electronics – Sequential Logic Circuits

Till now we studied the logic circuits whose outputs at any instant of time depend only on the input signals present at that time are known Read More »

### Digital Electronics – S-R (Set-Reset) Flip-flop

An S-R flip-flop has two inputs named Set (S) and Reset (R), and two outputs Q and Q’. The outputs are complement of each other, i.e., Read More »

### Digital Electronics – Clocked S-R Flip-Flop

Generally, synchronous circuits change their states only when clock pulses are present. The operation of the basic flip-flop can be modified by including an additional Read More »

### Digital Electronics – Concept of Combinational Logic

Circuits in which all outputs at any given time depend only on the inputs at that time are called combinational logic circuits.   A combinational circuit Read More »