Binary

# Binary Numbers # Binary Number System

In digital electronics the binary numbers system is the one of the four types of number system. In binary numbers system the information in the form of zeros “0” and ones “1” used in digital computers and system. This number system is expressed in the radix-2. Example (101)2 is a binary number. Each digit are called bit. In this tutorial we are discus the binary number system. For example in digital communication and digital signal processing of signal contains two voltage levels and those voltage levels are Logic “0” and Logic “1”. In digital the logic “1” represent a higher voltage such as 5 volts, and logic “0” represent the low voltage level such as 0 volts or ground. In a digital computer the binary digits and computational circuits and applications they are normally referred to as binary BITS.

In digital electronics system is a way to represent the numbers in the computer architecture are four different types of the number system, such as:

2. Binary number system (radix 2)
3. Octal number system (radix 8)

In this tutorial let us discuss what are binary number and its conversion of the binary numbers to other number system, table, binary number position value and binary operation like binary addition, binary subtraction, multiplication, division and its example.

What is a Binary Number System?

In digital electronics the binary number system defined as that is expressed in number “0” and “1” whose base 2. All digital computer use binary numbers. Every binary digit is referred to as a bit

## What is Bit in Binary Number?

A single digit of binary number is called “bit” examples of binary number are

• (10111)2  is a five-bit binary number
• (101)2  is a three-bit binary number
• (101001)2  is a six-bit binary number

### Important point of binary numbers to Remember:

• Binary numbers are only in the form of 0’s and 1’s.
• A binary number is represented (1101)2 with a base-2
• A bit is a single binary digit.

Table Binary Numbers

Some of the binary number lists into decimal numbers from 1 to 30 are in the below list.

 Binary Number Number Binary Number Number Binary Number Number 1 1 1011 11 10101 21 10 2 1100 12 10110 22 11 3 1101 13 10111 23 100 4 1110 14 11000 24 101 5 1111 15 11001 25 110 6 10000 16 11010 26 111 7 10001 17 11011 27 1000 8 10010 18 11100 28 1001 9 10011 19 11101 29 1010 10 10100 20 11110 30

## How to Calculate Binary Numbers

Here some example for the number to be operated is 1265.

 Thousands place 1 Hundreds place 2 Tens place 6 Ones place 5

This indicates,

1265 = 1 × 1000 + 2 × 100 + 6 × 10 + 5 × 1

Given,

 1000 = 10 × 10 × 10= 103 100 = 10 × 10= 102 10 = 10= 101 1 = 100 (any value to the exponent zero is one)

Hence,

1 × 1000 + 2 × 100 + 6 × 10 + 5 × 1 = 1265

1 × 103 + 2 × 102 + 3 × 101 + 5 × 100 = 1265

In decimal number system base is 10 and in decimal the digits are -9 represent decimal numbers system. The base is also known as radix. In binary number system the radix is 2.

The decimal number system is radix 10, where in the digits 0-9 represents numbers. In binary system operates in radix 2 and the digits 0-1 represent numbers, and the base is known as radix.

## Position value of Binary Number System

An example 1011.110. It is shown like this:

=1 × 23 + 0 × 22 + 1 × 21 + 1× 20  + 1 × 2-1 + 1 × 2-2 + 0 × 2-3

=1 × 8 + 0 × 4 + 1 × 2 + 1 + 1 × ½ + 1 × ¼ + 0 × 1⁄8

= 11.75 in Decimal number system

## Binary Arithmetic Operations

Now let us, we are going to perform the binary addition, multiplication and division operations.

We are going to perform the binary addition of two digits number given in the table below.

 Binary Numbers Addition 0 0 0 0 1 1 1 0 1 1 1 0; Carry →1

For example: Add (1101)2 and (1001)2. ### Binary Subtraction

We are going to perform the binary subtraction of two digits number given in the table below.

 Binary Numbers Subtraction 0 0 0 0 1 1; Borrow 1 1 0 1 1 1 0

Example: Subtract (1101)2, and (1010)2. ### Binary Multiplication

Let us perform the binary multiplication understand it with example.

Example: Multiply (1101)2 and (1010)2. ### Binary Division

Let us perform the binary division understand it with example.

Example: Divide (1010)2 by (10)2

## Binary bits of zeros and ones There are only binary numbers i.e. “0” and “1” and it use in digital or electronics circuit and system. The voltage are use to represent the binary digits in digital circuit “high level” are below 10 volt and “low level” is zero voltage. The digital signal is in discrete or distractive voltage form, but we make digital signal by changing the high and low voltage level. A binary number use these levels for representation of “1” and “0”. In electronics the system are divided into two categories analogue circuit and digital circuit.

• Analogue circuit- Analogue circuit is that circuit whose amplify or respond to continuously varying voltage levels that can change between a positive and negative value over a period time.
• Digital Circuits – Digital circuit is that circuit to produce or respond two distinct voltage level positive or negative voltage levels representing either a logic level “1” or a logic level “0”.

### Analogue Voltage Output

The simple example for distinguish the analogue circuit and digital circuit are give below;

#### Analogue Voltage Output Representation This circuit shows the analogue circuit the output form the potential meter change producing an infinite number of output voltage points between 0 volts and VMAX. the voltage is changes showily not rapidly. Some example of analogue signals includes temperature, pressure, liquid levels and light intensity.

### Digital Voltage Output

Digital circuit example, the potential meter and single rotary switch is connected to each junction of the series resistor forming a basic voltage divider network when the switch rotating from one position to another position the output voltage level representing multiple of 1 volt on each switching as shown in graph. The output voltage is 1 volt 2 volt 3 volt 5 volt but not 2.5 volt, 3.1 volt, or 4.6 volt. The fine voltage output produce by multi switch and increase the resistance.

#### Digital Voltage Output Representation #### Digital Value Representation

 First State Second State Logic “0” Logic “1” LOW HIGH FALSE TRUE Low Level Voltage Output High Level Voltage Output 0V or Ground +5 Volts  Click to comment
knowelectronic Website | The Best Blog to Learn Basic Electronics Tutorial for Beginners. Here you can learn Basic Electronics in simple and easy steps - from basic to advanced electronics. All the free online course include – Examples, Video, PDF and Electronics Books Study Materials, Analog Electronics, Digital Electronics, Printed Circuit Board (PCB), Soldering, Electricity, ESD, Electronic Components like Semiconductor, Resistor, Capacitor, Inductor, Transformers, Diodes, Junction, Transistors, JFET, MOSFET, Circuit Diagram etc. This Best and Free Online Basic Electronics Tutorial, Guide, Course is useful for anyone interested in Electrical and Electronics, Engineering Students and Teachers, Electronics Manufacturing Companies. | © http://knowelectronic.com | All Rights Reserved