Difference Between Bit Rate and Baud Rate

Bit rate and baud rate both the terms are used in the same way to examine the speed of data, but the bit rate is used when we want to know the number of bits transmitted per unit of time whereas the baud rate is used when we want to know the number of signal unit transmitted per unit of time. Here this article gives information about the main key difference between bit rate and baud rate to better understand this topic.


Definition of bit rate:


The bit rate can be defined as the number of bit intervals per second, Bit interval is referred to as the time needed to transfer one signal bit. It is similar in bit per second, for example, kilobits per second, megabits per second, gigabits per second, etc.

Definition of baud rate:


Baud rate is expressed in the number of times signal can change on transmission line per second, usually, the transmission line uses only two signal states, and make that the baud rate equal to the number of bits per second that can be transferred for the signal.

The main key difference between bit rate and baud rate:

  • Bit rate is also defined as per second travel number of bits, the baud rate is also defined as changes in the signal.
  • Bit rate emphasized on computer efficiency, while the baud rate emphasized on data transmission.
  • Bit rate is defined as the transmission of the number of bits per second, while the baud rate is defined as the number of signal units per second.
  • The formula of bit rate is = baud rate* the number of bit per baud, while the formula of baud rate is bit rate/ number of bit per second.
  • Bit rate is not used to decide the requirement of bandwidth for transmission of signal, while the baud rate is used to decide the requirement of bandwidth for transmission of the signal.

Difference Between Frequency and Bandwidth

Frequency and bandwidth both quantities that come in the study for electronics science. In everyday usage the two terms may have similar connotations, however, in electronic science, the two terms have two separate meanings. Here this article gives the main key difference between them to better understand this topic.

 Bandwidth and frequency both are the measuring terms of the networking system. The main key difference between bandwidth and frequency is that bandwidth measures the amount of data transferred per second while the frequency is to measure the number of oscillation of the data signal per second. 

 Definition of Frequency:


Frequency is defined as the number of vibrations or oscillation present in a wave in a unit time. The SI unit of measuring the frequency is hertz, written as Hz.

Definition of Bandwidth:


Bandwidth is a term in networking used to measure the maximum amount of data that can be transmitted per unit time.

Difference between frequency and bandwidth:

  • The frequency is denoted by the f, while the bandwidth is denoted by the B.
  • The frequency of a signal is specified as cycle/second, while the bandwidth is generally specified in terms of bits/sec.
  • The frequency of a signal defines the total number of complete cycles of a waveform that are existing per sec, while the bandwidth is the range of frequency of signal while transmission thus shows its capacity of some data flow.
  • Bandwidth measures the amount of data that a connection can transmit in a per unit time whereas the frequency is a number of data packets arrived in per unit time.
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Difference Between Period and Frequency

Frequency and period are inversely related quantities. Frequency refer to how often something happens, where period refer to the time it takes for something to happen. Here this article gives information about the main key difference between period and frequency are listed below.

The main key difference between period and frequency:


  • The period of a wave is time quantity while frequency is a rate quantity because it measures the total number of cycles appearing.
  • The period of wave in a generalized manner is given as by the second/cycle, the frequency of a wave is given as cycle/second.
  • The frequency is a representation is f while the devotion used for the time period is upper case letter of T.
  • The period of a wave is time quantity as its measurement is associated with time duration, while the frequency is a rate quantity because it measures the total number of cycles appearing.
  • As the period is time quantity its unit is seconds, whereas frequency is a rate quantity, therefore it is measured in hertz.
  • Period of a wave often referred to as the time period is the measure of time required by a wave for completing one cycle. However, frequency is the overall cycle occurring in unit time.
  • The period refers to the time it takes to do something, the frequency refer to the rate at which something happens.
  • If period is longer, the frequency is lower, If the frequency is higher period is lower. 
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Difference Between Frequency and Wavelength

Frequency and wavelength both quantities that come in the study for electronics science. In everyday usage the two terms may have similar connotations, however, in electronic science, the two terms have two separate meanings. Here this article gives the main key difference between them to better understand this topic.

Definition of frequency:


Frequency is defined as the number of vibrations or oscillation present in a wave in a unit time. The SI unit of measuring the frequency is hertz, shortly written as Hz.


Definition of wavelength:


The minimum distance between two consecutive identical wave points is known as the wavelength. As it specifies the distance thus its SI unit is meter.

The main key difference between frequency and wavelength:


  • Frequency measures the time whereas wavelength measures the distance.
  • The completed wave in unit time is called frequency, while the total length of the complete wave is called the wavelength.
  • Frequency is denoted by f, while the wavelength is denoted by λ.
  • Hertz is the measuring unit of frequency, while a meter is the measuring unit of wavelength.
  • Frequency defined the total number of occurrence of oscillations in a unit time. While wavelength is defined as the length of a wave.
  • Frequency also called the inverse of the time period, the wavelength is called distance covered by the wave.
  • Frequency is the number of times in which the sound wave occurs, while the wavelength is the distance between sound waves.
  • Frequency is a measure of time, the wavelength is a measure of distance.
  • An audible sound wave possesses a frequency range of 20 to 20 kHz, but the wavelength of visible light range from 400 to 700 nm.
  • Frequency is used to measure the recurrence of the sound wave, the wavelength is used to measure the length of sound waves.
  • In relation to speed, frequency is the ratio of speed and wavelength, while wavelength is the ratio of speed and frequency.
  • Frequency can be determined by the number of times sound hits a peak or through, while wavelength can be determined depending upon the crests, troughs, or zero-crossings through which sound passes.
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Difference Between Diffraction and Interference

Diffraction and interference both quantities that come in the study for mechanics. In everyday usage the two terms may have similar connotations, however, in electronic science, the two terms have two separate meanings. Here this article gives the main key difference between them to better understand this topic.


Definition of Diffraction:

Diffraction is the phenomenon of spreading of the light wave when it passes through a slit or any small gap.

Definition of Interference:

Interference is the act of superposition of two or more light waves emitted two coherent sources traveling in the same medium. We know the coherent sources provide a light wave of the same frequency and constant phase difference.


The main key difference between diffraction and interference:

  • Diffraction. there is a variance of the intensity of positions, In interference, the intensity of all the positions on maxima are of similar intensity in interference.
  • In Diffraction, the width of the fringes is not equal in interference, While the interference the width of fringes in interference is equal to the interference.
  • In the case of diffraction, there is a variance in the intensity of interference, It is absolutely dark in the region of minimum intensity in case of interference.
  • Diffraction can be termed as the secondary waves that emerge from the different part of the same wave, Interference may be defined as waves emerging from two different sources producing different wavefronts.
  • For diffraction to take place slit or obstacle is necessarily required but for the wave interference there exists no such requirement.
  • If the number of sources is many, that is more than two then it is referred to as diffraction sources, If the number of sources is few such as two sourced, then they are referred to as interference sources. 
  •  The diffraction process is poor contrast between maxima and minima while interference exhibits good contrast between maxima and minima.
  • The direction of propagation of wave gets changed, whereas in case of interference the superposed wave travels in the same direction.
  • Diffraction is the result of light propagation from distinct parts of the same wavefront, while interference is the result of the interaction of light coming from two separate wavefronts.
  • The minimum intensity points in the case of diffraction are not completely dark, as against in case of interference the point of minimum intensity shows complete darkness.
  • In diffraction superposition of waves spreading in the same material environment, while interference waves stray from the original route in the same elastic environment.
  • In direction between different fringes is nonuniform in diffraction, while in the case of interference the spacing between the fringes exhibits uniform nature.
  • Diffraction there is a constant phase difference between the waves, while in interference the dimension of the cracks should be the same size as the wavelength.

Difference Between Distance and Displacement

Difference between distance and displacement is one of the most commonly asked and confusing equations in the subject of physics. Also, equations like differentiating between distance and displacement are very common in the exams. Here this article gives information about the main key difference between distance and displacement to better understand this topic.

Definition of Distance:

Distance is a word that derives the Latin word called "distanceia" which means being far away, Distance is a magnitude that measures the proximity relationship between two things, objects, bodies, etc. It can also be considered as the length that traveled by an object from one point to another. 

Definition of Displacement: 

Displacement is considered a vector magnitude and we can describe it as the variation of the position of a body. The displacement focuses on the length of the path of an object the exists considering an initial point and another endpoint. It can be said that the result is a straight line between these two points. 


Difference between distance and displacement are listed below:

  • Distance is denoted by d, While displacement is denoted by s.
  • The complete length of the path between any two-point is called the distance, while the displacement is the direct length between any two points when measured along with the minimum path between them.
  • The distance can only have a positive value, displacement can be positive, negative, and even zero.
  • Distance is a scalar quantity as it only depends upon the magnitude and not the direction, displacement is a vector quantity as depends upon both magnitude and direction.
  • The calculated distance, the direction is not considered in distance, while the calculated displacement, the direction is taken into consideration.
  • The distance is calculated by speed *time while the formula of displacement calculates by velocity*time.
  • Distance is the gives the detailed route information that is followed while traveling from one point to another, As the displacement refers to the short path, it does not give complete information of the route. 
  • Both are measured in meter(m).
  • The distance can be measured along a non-straight path, displacement can only be measured along a straight path.
  • Distance is not indicated with an arrow, displacement is always indicated with an arrow.
  • Distance depends upon the path, displacement does not depend upon the path and it only depends upon the initial and final position of the body.
  • Distance always covered whenever there is a motion, displacement will be zero if the body comes back to its initial position.
  • The total distance covered is equal to the algebraic sum of all the distance traveled in a different direction, the net displacement is the vector sum of the individual displacement in a different direction.
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Difference Between Slip Ring and Split Ring

Slip and split rings both are basically two different ways of making a connection between a stationary and a rotating object for the current to flow through them. Here this article give the information about the main key difference between slip ring and split ring to better understand this topic.

Definition of slip ring:

The slip ring is a part of a basically AC motor use for transmission of the energy between the stationary and rotating elements of the machine. And the graphite material uses for the manufacturing of brushes. It is a place on the outer surface of the slip ring.

Definition of split ring:

On the other hand, the split ring is a movable device used for reversing the polarity of the current. It is made of basically copper materials. The ring devices from the centre into two halves. The combination of the split ring and brushes is known as the communicator. The split ring uses basically DC motor for getting the pulsating input voltage.

The main key difference between the slip ring and split ring:

  • The slip ring used for transferring the power from stating and rotary parts of the machine, while the split ring uses for changing the polarity of the current.
  • The slip ring is used in the AC machine but, the split ring uses in the DC machine.
  • The slip ring is in the form of a continuous ring, and the split ring splits into two or more parts.
  • The slip ring is supplied from an AC generator to the AC motor, for supplying pulsating voltage to the DC motor.

Difference Between Physical and Logical Topology

A physical topology is how they are actually interconnected with wires and cables, While a logical topology is how devices appear connected to the user.  Here this article gives information about the main key difference between physical and logical topology to better understand this topic.

Definition of the physical topology

Physical topology can be considered as a layout of the network media that shows the interconnection of the devices on the network. It specifies which geometric shapes the linked devices form with each other. The physical topology does not give much impressive detail about the type of devices, the mechanism used for interesting with other devices in the network, and how data is transferred from one device to another.

Definition of logical topology

While comparing to the logical topology emphasis the manner in which data is transmitted between network nodes instead of the physical layout of the path that data follows. The most important fact regarding these topologies is that both physical and logical topologies are independent regarding a  comparing network, whether it of any shape and size. 

Difference between physical and logical topology:

  • The physical topology is basically the physical layout of the network media. In contrast. logical topology refers to the way, how data is transmitted through the network.
  • Physical topology refers to how a network look and functions, while in logical topology fashion in which data travels logistically.
  • Bus, star, ring, and mesh are the physical topology, logical bus and the logical ring are the logical topologies.
  • While using logical topology is intangible in nature while physical topology can be customized.
  • The physical topology would not hider the transmission of the data from one device to the other in a logical topology.
  • The physical topology is costly, scalability, and flexible while in logical topology data delivery causing loss.
  • The physical connection of cable and devices in called as physical topology, while in path travel by data in a network called logical topology.

Explored more information
  1. Difference between Star and Mesh topology
  2. Difference between slip and split ring
  3. Difference Between Star and Ring Topology
  4. Difference between bus and star topology
  5. Difference between Ethernet and Internet
  6. Difference between LAN and WAN
  7. Difference between MAN and WAN

Difference Between Resistance and Reactance

The main key difference between resistance and reactance is that the resistance measures the opposition to a flow of current, whereas reactance measure the opposition to change in current. Here this article give the information about the main key difference between resistance and reactance to better understand the topic.

What is resistance?


The resistance of a component in a circuit is the potential difference across the component devices by the current through the component.

What is reactance?


Reactance is totally opposed to a change in current. Reactance is a property of capacitor or inductor because its functionality is intimate to the rates of changes of current and voltage.


The main key difference between resistance and reactance:


  • The resistor is associated with the real part of impedance, But in reactance contributes to the imaginary part of the impedance value.
  • Pure resistor generates resistance, while ideal inductors or capacitors give rise to resistance in the circuit.
  • Resistor depends upon the conductor's dimension, resistivity, and temperature, while the reactance depends upon the frequency of the alternating current.
  • Resistance is defined as the R, while the reactance is defined as the X.
  • Resistance is the property associated with the both AC and DC circuit, However, reactance to the property is only associated with AC circuits.
  • The resistance is the obstacle in the flow of current in an electrical circuit due to resistor, while reactance is the opposition to the charging current due to either inductor or capacitor.
  • In the resistive circuit, the overall supplied power to the circuit gets dissipated in the form of heat, Whereas in a capacitive or inductive circuit the device does not fully consume the total supplied power.
  • The difference in phase between voltage and current in a purely resistive circuit is 0 degree, while the phase difference between voltage and current in an ideal capacitive or inductive circuit is 90 degrees. In the case of inductive load, the current lags behind the voltage by 90 degrees and for purely capacitive load voltage pages the current by 90 degrees.
  • The resistance offered by the circuit depends on the dimension, resistivity, and temperature conditions of the conductor, while the reactance relies on the frequency component of the alternating current in the circuit. It shows the proportionality with frequency in case of inductive load, whereas this relation is inverse in case of capacitive load.
  • Power consumption due to resistance is real power and it is a product of voltage and current, While the power supplied to a reactive device is not fully consumed by the device due to lagging or leading current.

Explore more information:
  1. Difference between active and passive component 
  2. Difference  between resistor and inductor
  3. Difference between resistance and impedance
  4. Difference Between Potentiometer and Rheostat
  5. Difference between resistor and resistance 
  6. Difference between resistor and capacitor
  7. Resistance vs resistivity

Difference Between Client-Server and Peer-to-Peer Network

Both network are depends on the environment which network model to implement, each model has its own strength and flaws. Here this article gives information about the difference between client-server and peers to peer networks to better understand this topic.


What is a client-server network?


The client servers network focuses on information sharing. Though the server can share its resources with clients, clients do not share their resources such as computing power on hard drive space with the network.


What is a peer to peer network?


A peer to peer network is a group of computer or computer systems that are connected to each other through the internet. Files can be shared directly between their systems on the network without the need for a central server.

The main key difference between client-server and peer to peer network:


  • In the client-server model, data is stored on a centralized server while in peer to peer each peer has its own data.
  • Client-server networks main focus on information sharing, while peer to peer model focuses on connectivity.
  • In the client-server model, there is a dedicated server and specific clients, While in Peer to peer each node can act as both server and client.
  • In the client-server model, sharing the information is more important, but in peer to peer model connectivity between peers is more important.
  • In the client-server model, the server provides services to the client, In peer to peer can provide service and can also request for the services.
  • In a client-server network client and server both are differentiated, specific server and client and present, While in peer to peer client and server are not differentiated.
  • The client-server model is more expensive to implement than peer to peer networks.
  • The n client-server model,  model is more scalable and stable than peer to peer.
  • A client-server network is used for both small and large networks, While in peer to peer network is generally suited for a small network with fewer than 10 computers.
  • The client-server model is less reliable, while in peer to peer network is more reliable.
  • In client-server multiple requests for service from a server and therefore, the access time for a service is higher, While the service providing nodes are distributed, in peer to peer network, the service requesting node does need to wait long.
  • Client-server network very much secure when compared to the peer to peer network, while in peer to peer network is less secure when compared to client-server network.
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Difference Between Bus and Star Topology – Complete Comparison Guide for Networking

Both bus and star topologies have their own significance in the communicating network. The crucial difference between bus and star topology is that star topology makes use of a central hub or switch that broadcasts information to all the devices in the network, while bus topology uses a single cable through which various peripheral devices are connected. Here, this article gives the information about the main key differences between star and bus topology, which are listed below.

What is a star topology?


In star topology, the node is connected to the central hub or router. In which the information is travel from a central hub or router to all the nodes. There are n link in a star topology If there are n nodes.

What is a bus topology?


In bus topology configuration, multiple devices are connected one after the other. In a linear manner to a common communication, the cable is known as bus configuration. The common cable or link can be either coaxial cable or twisted pair cable.


The main key difference between star and bus topology:


  • In star topology, if the central hub fails then the whole network fails, In a bus topology, the failure of the network cable will cause the whole network to fail.
  • Star topology is a topology in which all the devices are connected to a central hub, Bus topology is a topology where each device is connected to a single cable which is known as the backbone.
  • Management of high traffic and performance of the network is highly dependent on the capacity of the central hub, Bus topology can not effectively manage a high amount of traffic as if there is high traffic then the performance of the network is affected.
  • Star topology does not have any terminator, Bus topology has terminators at both ends of the network.
  • Data transmission is faster in a star topology, In a bus topology, the data is transmitted slower as compared to a star topology.
  • In bus topology signal is transmitted unidirectionally from one end to another. While the star topology does not follow the same.
  • Star network is expensive in comparison to the bus network.
  • Star topology has a high implementation cost because of a central hub and extra wires require for connection but on the bus, topology is less expensive than a star topology.
  • Star topology the communication between nodes is done through a central hub, a message from the sender node reaches the central hub first then it is transmitted to the receiver node, But in a bus topology, the data from the sender device to the receiver device is sent directly.
  • Star topology fault detection is comparatively easy. While in bus topology offer difficult troubleshooting because one has to check all the device of the linear network to detect the fault.
  • The structure of bus topology is linear as various devices are connected through a straight cable, while the orientation of the star network is non-linear.

Difference Between Star and Mesh Topology

Both the star and mesh are the type of network topologies that could be defined as the arrangement of a network that comprises nodes and connecting lines via the sender and receiver. Here this article gives information about the main difference between star and mesh topology to better understand this topic.

What is a star topology?


Instar topology, the node is connected to the central hub or router. In which the information is travel from a central hub or router to all the nodes. There are n link in a star topology If there are n nodes

What is Mesh topology?


In a mesh topology, the nodes are connected to each other completely via a dedicated link in which the information is travels from nodes to nodes and there are N(N-1)/2 links in a mesh topology if there are N nodes.

Difference between star and mesh topology:


  • The star topology organizes the nodes in a star shape where the central hub is connected to all the other nodes. On the other hand, in a mesh topology, each node is connected to the other node.
  • There are N links in star topology if there are N nodes, While in there are N(N-1)/2 links in mesh topology if there are N nodes.
  • Star topology only uses twisted pair cable as transmission media. In a mesh, topology can employ and transmission media such as twisted pair cable, coaxial cable, or optical fiber, but it requires more amount of cabling.
  • Mesh topology is complicated than star topology.
  • Easy installation and reconfiguration are possible using star topology while mesh topology requires more transmission media, effort, and some more time for installation and reconfigurations.
  • Star topology is cost-effective to some extent while the mesh is too expensive.
  • The flexibility and scalability of the star topology are good whereas the mesh topology is less cable as it directly increases the cost of the system.
  • The routing in the star topology is done with the help of the star coupler. While in mesh topology directly transmit the data from one node to another using a point to point link.
  • The star topology has a disadvantage where the inoperative central hub can make the entire system is inoperative. On the other hand, the mesh topology is more robust than the star topology.
  • Star topology is very extensible, Mesh topology is poorly extensible.
  • The star topology has a drawback where the inoperative central hub can make the entire system inoperative. The mesh topology is more robust than the star topology.
  • Star topology is very good extensible and can be used in LAN called local area network as set up is easy too, While in a mesh topology is poor extensible and can be used in WAN called a wide area network.
  • The complexity of star topology is quite simple, The complexity of mesh topology is more complex.
  • In star topology, twisted pair cable is used for connection, In a mesh topology, twisted pair cable, coaxial cable and optical cable are used for connection on the basis of the type of network.
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Difference Between Star and Ring Topology

Star and ring both are computer network topologies, The main key difference between star and ring topology is that star topology connects all devices to a central device forming a pathway similar to a like star while the ring topology connects every device to exactly two other devices forming a single continuous pathway similar to a like ring.

What is a star topology?


In star topology, the node is connected to the central hub or router. In which the information is travel from a central hub or router to all the nodes. There are n links in a star topology If there are n nodes.

What is ring topology?


In Ring topology, every node is connected to its left and right sides both nodes in which the information is travel from node to node in look like ring manner in one direction. There are also links in ring topology like star topology if there are n nodes present. 

Difference between star and ring topology:


  • In Star topology, the nodes are connected to the central hub or router while in a ring topology, every node is connected to its left and right side nodes.
  • The cost of star topology is high, The cost of the ring topology is low.
  • In star topology, the only hub is failure point, While in ring topology every node are failure point.
  • There are n link in a star topology if there are n nodes, There are also n link in ring topology if there are n nodes present.
  • A new cable is added to the central hub to add a new node, whereas to add a new in-ring topology, the connection must be broken.
  • In star topology, the other devices are affected only when the connecting device goes down, While in a star topology, the addition and removal of new nodes are moderately difficult, In ring topology addition and removal of new nodes are difficult.
  • Troubleshooting in the ring topology is quite simple as the information continues to transfer through the rest of the ring until reaching the point of failure
  • In star topology the information is travelled from a central hub or router to all the nodes, In a ring topology, the information is travelled from node to node.
  • The cables are required in star topology more than the ring topology, The cable is required in ring topology less than the star topology.
  • In star topology, the information is travel from a central hub or router to all the nodes, In a ring topology, the information is travel from node to node in a ring manner in one direction.
  • Star topology is very extensible and uses LAN, and Ringe topology is poorly extensible and can be used in WAN.
  • Fault isolation is easier in a star topology, while it is quite difficult in a ring topology.
  • Star topology is more expensive than ring topology.
  • Star topology due to its simple structure is less compared as compared to ring, While ring topology has more complexity in nodes, arrangement ring topology is considered more complex.
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Difference Between RAM and ROM

RAM and ROM both are computer memory. RAM is used to store computer programs and data that CPU needs in real-time, ROM have preprocessed data and it is used to boot the computer. RAM data is static and remains in the computer even if computer switched off.

What is RAM?


RAM stands for random access memory. It allows read and writes the operation of data by the users. It is referred to as transferred memory because the data present in this memory last only till the time the power supply is ON.

What is ROM?


ROM stands for read-only memory.  ROM is the name itself is indicating that only read operation can be performed on this memory. This mean the data in ROM is stored at the time of designing the system and hence user does not hold the authority to change the data present in it.

The main key difference between RAM and ROM are listed below:


  • RAM stands for random access memory, While the ROM stand for read-only memory.
  • In RAM data is volatile. Data is present till power supply is present while the ROM data is permanent. Data remains even after power supply is not present.
  • CPU can access data stored on RAM, While the Data to be copied from ROM to RAM so that CPU can access its data.
  • RAM speed is quite high, ROM speed is slover than RAM.
  • RAM offers the user to read as well the write the data but the data in ROM is pre-written and thus can only be read by users, So RAM data can be read, erased, or modified while ROM data is read-only.
  • RAM is a temporary storage type of memory as the day lasts only till the time the power supply is ON. While in ROM is a permanent memory that retains the data for a longer duration.
  • RAM is costly while the ROM is cheap.
  • RAM is classified as the main primary memory of the system whereas the ROM categorized as the secondary memory.
  • RAM is used as CPU cache, primary memory of the system while the ROM is used as firmware by the microcontroller.
  • The process can directly access the data present in RAM, while the data present in ROM do not permit direct access to the processor.
  • The data stored in RAM is changeable by the user, Whereas the data in ROM cannot be altered by the user.
  • RAM memory is a large and high capacity, While is ROM is generally small and low capacity.
  • RAM is used to store data that CPU need for current instruction processing, ROM is used to store data needed to bootstrap the computer.
  • RAM stores data on transistor thus requires a continuous source of power while the data stored in ROM remain unaffected with power failure.
  • RAM offers memory capacity in GB usually 1 to 256 GB per ship, While the ROM permits the storage capacity in MB, usually in the range 4 to 8 MB per chip.

AES vs DES Encryption: Which Is More Secure?

The basic difference between AES and DES is that S=AES is the entire block is processed to obtain the ciphertext while in DES plaintext block is divided into two halves before the main algorithms start. Here this article give the information about the main key difference between AES and DES to better understand this topic.

What is AES?


AES stands for advanced encryption standard, It is a method for the symmetric key block cipher. AES was published in 2001 by the national institute of standard and technology. AES was introduced to replace DES as DES see very small cipher key and the algorithm was quite slowers.

What is DES?


DES stands for data encryption standard, It is a symmetric key block cipher that was adopted by national institute of standard and the technology in the year of 1977. DES takes input as 64 bits plain text and the 56-bit key to produce 64-bit ciphertext.

Difference between AES and DES are listed below:


  • AES stands for advanced encryption standard while DES stands for data encryption standard.
  • In AES Key length can be of 128 bits, 192 bits, and 256 bits while in the key length of DES is 56 bits.
  • AES is more secure than the DES cipher and is the de facto world standard, While DES can be broken easily as it has known vulnerabilities. 3DES is a variation of DES which is secure than the useful DES.
  • AES is completely faster than DES.
  • AES was designed by the vincent rijmen and Joan Daemen, While the DES was designed by IBM 
  • The structure is based on a substitution permutation network while in the DES the structure is based in the Feistel network.
  • AES can be encrypted 128 bit of plain text, DES can encrypt 64 bits of Palin text.
  • AES number of rounds depends on the key length while in DES involves 16 rounds of identical operations.
  • AES cipher is derived from square cipher but in the DES cipher is derived from lucifer cipher.
  • In AES is no known attack while in DES brute force, linear cryptanalysis, and differential cryptanalysis.
  • The rounds in AES are: Byte substitution, shift row, mix column and key addition, While the round in DES are XOR operation, expansion, round key, substitution, and permutation.

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Difference Between Steganography and Cryptography

The main comparison between the steganography and cryptography are listed below. You can also check out some differences related to this term are also listed below.


What is steganography?


 Stgenography or cover writing is a method where a secret method is converted into a fake-looking message. This techniques help to keep a message secret. It is pretty difficult to use and understand. The structure of data remains unaltered in steganography. It is used in a text, audio, video, or images.

What is cryptography?


 Cryptography is secret writing is a method where a secret method is converted in the ciphertext and sent to another person who then decrypted the chipper text into plain text.

The main key difference between steganography and cryptography are listed below:

  • The meaning of the steganography is hidden writing, cryptography signifies secret writing.
  • The cryptography is prevalently used, unlike steganography which is not so familiar with it. 
  • The degree of the security of the secret data is measured by the key length which makes the algorithm is too much strong and also unbreakable. Conversely, there is no such thing in steganography.
  • Steganography provides only confidentially and authentication. In the country, the principle of security provided by the cryptography is confidentiality, integrated, authentication, and nonrepudiation.
  • The spacial domain, transform domain embedding, and model-based are some of the algorithms used in steganography. In contrast, the cryptography uses techniques named transpositional, substitution, stream, and block ciphers.
  • In steganography devices, the main structure of the message is not change, while the cryptography process, imposes a change on the secret message before they transferring it over the entire network.
  • The steganography can be employed on any medium such as text file, audio-video, and image while cryptography is implemented only and only on the text file.
  • The reverse engineering employed to decode the message into cryptography is known as the cryptanalysis. On the other hand, the techniques used to detect the presence of steganography are known as steganalysis.
  • Attacks' name in steganography is steganalysis, while in cryptography, attacks name is cryptanalysis. 
  • Steganography is less popular compare to the cryptography, while cryptography is more popular compared to steganography.
  • Steganography the structure pf data is not usually altered, while in cryptography structure of data is altered. 
  • Steganography is an attempt to achieve secure and undetectable data for communication. But the cryptography intends to make the message readable for only the target recipient but not by others through obtaining a disguised form of this type of message.
  • Steganography is not much mathematical transformation are involved, while cryptography involves the use of number theory, mathematics, etc to modify data.

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