### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

### 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 »

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