What is a binary number?

Question

What are binary numbers used for?

Sana Akram Akram · Answer

Binary means two.. the system which has base 2 is called binary system..  in this the result shows in two number i-e ' 0 and 1'

Saadullah Farooq Abbasi · Answer

Binary is commonly used in computing.

Ahsana Hassan · Answer

Binary number is a number expressed in the base-2 numeral system
 that uses only two symbols 0 and 1.

Catherine Meh · Answer

A binary number is a system using only 0s and 1s, key in computing.

Arshad Ahmad Shiekh SHIEKH · Answer

In simple words we can say that binary numbers i,e symbols 0 and 1 are used to represent various numbers.

Ritu · Answer

Binary means two. 0 and 1 both are Binary numbers. Binary numbers are mostly used in Computing.

Justin Beaumont · Answer

Binary numbers are typically used in computers.  The expressions are written in binary which means that 2 numbers are used , 0 and 1

Manusmita Lohani · Answer

0 and 1 are two base binary numbers that when in computing.

Jeffrey Shijo · Answer

A binary number is a way of representing numbers using only two digits: 0 and 1.

Think of it like how we normally use ten digits (0-9) to count, which is called the decimal system. In binary, instead of ten digits, we only have two choices—0 and 1. This makes it perfect for computers because they can easily understand two states: on and off, or true and false.

Binary might seem a bit strange at first, but once you understand that it’s just another way to count, it becomes much easier to follow. Computers use binary because it’s simple and matches how they work with electricity—either the signal is on (1) or off (0).

Raj · Answer

Binary numbers, which use only two digits (0 and 1), are foundational to various fields, particularly in computing and electronics. Here are some key uses of binary numbers:

1. Digital Electronics and Computing
Data Representation: Computers represent all types of data (numbers, text, images, videos, etc.) using binary. Each binary digit, or bit, is the smallest unit of data in computing.
Instructions and Operations: Central Processing Units (CPUs) perform all calculations and operations using binary, where instructions are encoded as sequences of 0s and 1s.
Memory and Storage: All forms of memory (RAM, hard drives, flash drives) store data in binary format.

2. Networking and Communication
Data Transmission: Data transmitted over networks (like the internet) is encoded in binary. This allows reliable transmission, as binary signals can be easily detected (high or low voltage, on or off signal).
IP Addresses: IPv4 addresses are converted into binary for routing data across the internet.

3. Logic Gates and Circuits
Digital Logic Design: Binary numbers are used in the operation of logic gates (AND, OR, NOT, etc.), which are the building blocks of digital circuits used in computers, calculators, and other digital devices.
Circuit Design: Binary states (on/off, 1/0) are used to represent two different states in electronic circuits.

4. Error Detection and Correction
Parity Bits: Binary systems use parity bits to detect errors during data transmission.
Hamming Codes: More advanced error correction techniques also rely on binary to detect and correct errors in data storage and communication.

5. Cryptography
Encryption Algorithms: Many encryption algorithms (such as RSA or AES) rely on binary arithmetic for securing data.

6. Digital Image and Sound Representation
Pixel Representation: Images are stored as binary numbers, where each pixel is assigned a binary value to indicate its colour or intensity.

Audio Representation: Audio signals are digitized into binary to represent sound waves for storage or transmission.

Binary's simplicity in representing two distinct states (on/off) makes it an ideal system for modern digital technologies.

Sam · Answer

Written only using digits 1 and 0.
We usually write in decimal, meaning 10 different digits. 
111 usually means 1*10^0 + 1*10^1 + 1*10^2.
But in binary 111 = 1*2^0 + 1*2^1 + 1*2^2.  So 111 in binary = 1+2+4=7.
Binary numbers are used in computer science.

Noofa · Answer

It's with only 2 digits . They are 0 and 1.

Nicole · Answer

Binary means two like 0 or 1, male or female etc. The computers working with binary numbers. It is a system in that are base 2 used.

Sadia Rasheed · Answer

System of numbers that consist of  only two digits 0,1.

Inderjeet Singh · Answer

It is computing terminology wherein we use just 0s and 1s

Sana Mobin · Answer

A binary number is a way of counting using only two digits: 1 and 0. Instead of using all ten digits like we do in normal numbers (0 to 9), binary just uses these two. It is expressed in base 2 numeral system.
Example: 4 in binary is (100)2.
Dividend.      Remainder
4/2 =2.                0
2/2 = 1.               0
1/2 = 0.               1
So, 4 in binary is (100)2. Here, there are 2 zeroes and 1 one. Hence, we have 3 bits.

Therefore, the number of bits does 4 in binary have is 3.

Jaswinder Singh SRAN · Answer

The numbers which are used to write in computer machines because they convert all the languages into binary numbers i.e. 0 & 1. Everything in computer is stored using 0 & 1 means binary numbers.

Timothy KEECH · Answer

Binary numbers play a huge part in computing. Essentially computer electronics deal with switches which can be strung together to work through logical patterns. At a basic level these switches can be 'on' or 'off' and can be represented by two numbers usually 1 or 0. If, then, a system of mathematics based on two digits only, known as a binary system, instead of the usual 10 digits we are used to, there is an avenue which will allow electronics to do rapid calculation. Although computers now are so capable that this seems hopelessly simple, it is, nevertheless, still at the heart of electronic computation.

Mehreen Iftikhar · Answer

Binary numbers is used with computational language…As our computer only understand instructions in the form of 0’s and 1’s… This 0 and 1 is called Binary Numbers

Joshua Orucho Mosoti · Answer

A system using only 0s and 1s ,it is used in computing

Hugo Fung · Answer

binary number is basically calculating everything with just “0” and “1” in a base of two. usually use in computing cuz it’s so convenient

Ambreen Sajid · Answer

Number in 0,1

Athira Anilkumar · Answer

Binary number system is a system used by computers. Bi the word means 2. so "0" and "1" these are the two numbers used to generate all the characters and whatever the computer wants.

Abd El Moneim Magda · Answer

Binary numbers is the computer numeral system . It is represented by 1 and 0 like on and off of number of base 2 , the position of 0 and 1 in the number determine the number 
Ex: 1 is expressed 01 , 2 is 10 because the first place is for 2 to power 0 second place for 2 power 1 and so on

Sumera Usman · Answer

0 and 1 are binary numbers

Mohammad Huzaifa · Answer

A binary number is a number represented in the base-2 numeral system, which uses only two digits: 0 and 1. Each digit in a binary number is referred to as a bit. Binary numbers are fundamental to computer systems and digital electronics because they align with the binary logic of electronic circuits, where 0 represents off and 1 represents on.

Earnmore · Answer

For me, to best answer your question, I would need to know your level of education since the response depends on which level you are at. As a good teacher, it is best to know the quality and quantity of information to be delivered to a student in respect to their capacity of understanding.

Laith · Answer

It is a number expressed in Base-2 system.

Base-2 has only two digits; 0 and 1 and any value is expressed with these.

Our usual number system in use is Base-10, having digits 0,1,2,3,....,9.

For example,

5 is expressed as 101 in Basr-2

Hannah Yassine · Answer

Binary is a numerical system that uses only two digits: 0 and 1. 
It’s the foundation of computer systems and digital electronics. 
In binary, each digit represents a power of 2, rather than a power of 10 as in the decimal system we use every day.

Rica Reyes · Answer

A binary number is made up of only 0s and 1s. There is no 2, 3, 4, 5, 6, 7, 8 or 9 in Binary! Binary numbers have many uses in mathematics and beyond.

Rica Reyes · Answer

Binary numbers are numbers expressed in base-2, using only the digits 0 and 1. This is different from our familiar base-10 system, which uses digits from 0 to 9. In binary, each digit represents a power of 2, starting from the rightmost digit being 2^0, then 2^1, 2^2, and so on.

For example, the binary number 1011 is equivalent to the decimal number 11, because it is calculated as (1 * 2^3) + (0 * 2^2) + (1 * 2^1) + (1 * 2^0).

Now, let's break down the conversion process from binary to decimal in code:

1. We will start by declaring a string variable called "binary" and assign it a binary number, such as "1011", which we want to convert to decimal.
2. Next, we will initialize a variable called "decimal" to store the result of the conversion, starting with a value of 0.
3. We will then loop through each digit of the binary number from right to left, using a for loop.
4. Inside the loop, we will check if the current digit is '1'. If it is, we will add the corresponding power of 2 to the decimal variable.
5. Finally, after iterating through all the digits, the decimal variable will hold the converted decimal value of the binary number.

In summary, this code converts a binary number represented as a string into its equivalent decimal value by iterating through each digit and calculating the corresponding power of 2.

Seth Azumah · Answer

A binary number is a way of representing numbers using only two digits: 0 and 1. It's the system computers use to process data. 
Each digit in a binary number is called a "bit."
For example:
The binary number 101 equals 5 in decimal (1×2² + 0×2¹ + 1×2⁰ ).
 (1×4 + 0×2 + 1×1)
 (4 + 0+ 1).
=5

Eugene Kumi-arhin · Answer

A binary number is expressed in based 2 numeral system.

Saima bibi · Answer

Zero and one

Maryam Farghdin · Answer

Binary numbers are a numerical system for representing a number by using just 0 and 1 digits following it’s role.
For example:
10 represents 2, 11 represents 3, 100 represents 4 and etc.

Rajni Sharma · Answer

Binary number is used in computing.binary means two so 0 and 1 are used

Anna Mol Scaria · Answer

Binary number system is something which only uses two digits namely 0 and 1. From right to left each digits represent the powers of 2 which means last binary digit represents 2^0=1. Binary digit just before last represents 2^1=2. Third binary digit from the right represents 2^2 =4. Similarly 4 th binary digit from the right represents 2^3 = 8. 
For example  10 in binary digits is given by the following procedure:
10 = 2+8=2 + 2^(3). Therefore the binary number is 1010 as it is
 2^0×0 + 2^1×(1) + 2^2×(0)+ 2^(3)× (1). 
Which means the digits represented by zero is not calculated where as those represented by one is added. 
Another example: 9 is represented as 1001

Ranjeet Jabble · Answer

Sure! To simplify the concept of a binary number:

Binary System: Uses only two digits: 0 and 1.
Binary Number: Represents values using these digits, where each digit's position corresponds to a power of 2.
For example, the binary number 1011:
8+0+2+1=11 in decimal.
So, 1011 in binary is 11 in decimal.

Elena Hicks · Answer

We use decimal system in every day life. The binary system ( 0,1) is commonly used in computers and has just 2 ( binary) numbers 0 and 1

Nuria Martin Jimenez · Answer

A binary number is a number expressed in the base-2 numeral system, which uses only two digits: 0 and 1. Each digit in a binary number is called a bit. Binary numbers are commonly used in computing and digital electronics because they can represent the two states (on and off) of a transistor, which is the fundamental building block of digital systems.

Hans Jakob Rivertz · Answer

A binary number or more precisely binary format is when all numbers are written with two symbols 0 and 1 only. Binary numbers are used in computers but also in logic, where 0 means false and 1 means true.

Fausat Akinsanya · Answer

Binary numbers are expressed in base 2-numbers. Can be used in computing system.

Harman kaur · Answer

they are used to represent information. A binary number is a number that is expressed in base 2 numerical system. it only used 1s and 0s. it is used by computers because computers cannot understand our language.

Saman Kumara · Answer

In general practice, we use ten numbers base for counting. Those are according to base ten. Here, there are ten numbers from 0 to 9. But in some cases like computer technology, Binary number system is used. In that system, numbers are 0 and 1. So, the maximum digits at a one place are two numbers. But, in Decimal system, the maximum digits at a one place are ten digits. Those positions can be filled using the numbers zero to nine. Not only above two systems, there are more other numbering systems as well such as 4th base, 8th base etc. In each case, each system can be converted into another number system. As an example, tenth base number can be written as a binary number as well as a fourth base number.

Lawrence Onah · Answer

A binary number is a number in base two. It has it's digit value in 0 and 1 only . It's used in computer programming, coding etc.

Abdullahi Mustapha · Answer

A binary number is a number expressed in the base-2 numeral system, using only the digits 0 and 1.

Eloise Key · Answer

A binary number is where a number is expressed in terms of a combination of “1” or “0”. To convert from decimal to binary, start by subtracting the biggest place value possible from the decimal number, then place a 1 in that place value column. Next, subtract the second biggest place value possible, and place a 1 in the column. Repeat this process until zero is reached

Mohmmad Shahid Khan · Answer

Binary as a base simply implies that we can only deal with 0s and 1s. It is the basis of all modern compute systems

Kntaro Hanafusa · Answer

Binary number mens expressing numbers by 0 & 1

Hassan Paul Koroma · Answer

Binary numbers are codes used to signify numbers in a binary system. They are represented by 1 and 0.

Nyangble Ebenezer · Answer

A binary number is a number expressed in the binary numeral system, which uses only two symbols: 0 and 1. This is in contrast to the decimal system, which uses 10 symbols: 0 through 9.

Binary numbers are used by computers and other electronic devices to represent information and perform calculations. They are the basis for all computer programming and are used in many areas of computer science.

Muhammad Muzamil · Answer

Binary numbers are that which have base 2 and  used for compiling in computer as in language  of 0,1 or yes ,no.  Or true, false

Vijay kr sharma · Answer

Binary number is two base number system based on 0 and 1.

Bhanuteja · Answer

Binary numbers is a system which consist of two numbers. 1 and 0. These can be very helpful in programming or coding and computers are solely based on this system itself.

Leo Whyton · Answer

A binary number is a number expressed in the base -2 numerical system, which is a method for representing numbers that uses 0 and 1.

Waqas Baig · Answer

A binary number is a number expressed in the base-2 numeral system or, a method for representing numbers that uses only two symbols for the natural numbers: typically "0" (zero) and "1" (one).

Loknath Borra · Answer

Binary numbers are primarily used in computing and digital electronics because they are the simplest way for machines to represent data. i.e 0's and 1's with base 2.

Naeem Hassim · Answer

Imagine you have a bunch of toys, and each toy can either be "on" or "off." That's how a computer thinks — using binary numbers.

Instead of using the numbers 1, 2, 3, 4 like we do, computers only use two numbers: 0 and 1.

0 means "off."
1 means "on."
So, a binary number is like a row of switches where each switch is either "off" (0) or "on" (1).

For example:

The binary number 101 means:
The first switch is on (1),
The second switch is off (0),
The third switch is on (1).
If we wanted to see what this means in normal numbers (like 1, 2, 3, 4), 101 in binary is the same as the number 5 in regular numbers.

Maitri · Answer

Mainly in computer programming. To store data/information on electronic storage device

Khushba Mumtaz · Answer

Binary numbers are used for several important purposes in computing and digital systems:

Data Representation: Binary numbers (using only 0s and 1s) are the fundamental way computers represent and process all types of data, including text, images, and sounds. Each binary digit (bit) can represent a state of an electrical signal (on or off).
Computer Operations: Binary is the language of computer hardware and software. Computers use binary arithmetic to perform calculations and execute instructions.
Memory Addressing: Binary numbers are used to address memory locations in a computer. Each memory cell is uniquely identified by a binary address.
Digital Logic: Binary numbers are used in digital circuits and logic gates (like AND, OR, and NOT gates) to perform logical operations and build complex electronic systems.
Data Encoding: Various encoding schemes, like ASCII for text or binary-coded decimal (BCD) for numbers, use binary to encode information for storage and communication.
Networking: Binary is used in networking protocols and addressing, such as IP addresses, which are expressed in binary but often shown in a more readable format like decimal or hexadecimal.

Finn Chipp · Answer

Binary is a system used to represent numbers using only 1s and 0s. This is useful in computing as circuits can represent numbers with on for 1 and off for 0.

In standard representation, each digit is double the digit to its right, starting at 1. Values represented by 1s are added together, and values represented by 0s are ignored.

For example, 1010 would be 10, as it is 8 + 0 + 2 + 0; 1011 would be 11, as it is 8 + 0 + 2 + 1; 1111 would be 15, as it is 8 + 4 + 2 + 1, and so on.

Mark · Answer

Binary numbers use just 1 and 0 to represent a number.

For example 1010 is 1*8 + 0*4 + 1*2 +0*1 = 10 as a decimal number.

All modern digital computers store information as 1s and 0s, so, they use binary numbers.

Arthur diniz · Answer

its a sequence of zeros and ones that is used by computer to work

Helen Cowdery · Answer

This is a way of showing data with zeros and ones only.
It’s used by computers a lot to represent data

Bhavya · Answer

A binary number is a number in the base-2 system, using only the digits 0 and 1. It's fundamental in computing, where it represents data through on/off states in digital systems.

Aashika Saraf · Answer

A number that is expressed in the binary system or base 2 numeral system

Simon kilonzi · Answer

Binary numbers are also known as base 2. It is also referred as a computer language which means that any data which is entered in to computer must be converted  to 0s 1s

Noble Thomas · Answer

Writing numbers using 0 and 1 only

Pius Ajamma · Answer

A binary number is a way of counting using just two digits: 0 and 1. Think of it like a special number system where every digit can only be either 0 or 1. Binary numbers are used by computers because they work with switches that are either off (0) or on (1).