Tech Differences

Difference Between 1G and 2G

1G and 2G are the two generations of mobile phones. 1G is the first generation of mobile phones that brought first wireless communication to us. 1G uses an analog signal for communications and use FDMA for channelization. 1G is used for voice communication, data transmission service was not provided by 1G. 2G was digitalization of 1G i.e. it uses the digital signal for communication. 2G uses TDMA and CDMA for dividing the channels, and it provides voice plus data communication services. Lets … [Read more...]

Difference Between Symmetric and Asymmetric Encryption

While communicating on an unsecured medium like the internet, you have to be careful about the confidentiality of the information you are sharing with other. The are two techniques use to preserve the confidentiality of your message, Symmetric and Asymmetric Encryption. The fundamental difference that distinguishes symmetric and asymmetric encryption is that symmetric encryption allows encryption and decryption of the message with the same key. On the other hand, asymmetric encryption uses … [Read more...]

Difference Between Iterator and Enumeration Interface in Java

The three cursors that are used to access the elements from any collection one by one are Enumeration, Iterator and ListIterator. Though, Iterator and Enumerator are meant for performing the same work. Still, they are distinct from each other in a sense that Enumeration has read-only access to the elements in the collection. On the other side, Iterator can read as well as remove the elements from the collection. The important difference between the Iterator and Enumeration is that the … [Read more...]

Difference Between sleep() and wait() Method in Java

The method sleep and wait sounds like doing the same task, but they are much different from each other. Sleep method belongs to the Thread class, and the wait method belongs to the Object class. The most important difference that distinguishes both of them is, the sleep method holds the lock on the object till it is interrupted or it finishes its execution. On the other hand, the wait method releases the lock on the object to let the other objects execute till is resumed by the notify method. … [Read more...]

Difference Between HashMap and LinkedHashMap in Java

HashMap and LinkedHashMap are the classes, quite similar to each other and are used for creating a map. HashMap class extends the AbstractMap class to use a hash table to store the elements in the map. LinkedHashMap class maintains the entries in the map based on their insertion order. The feature that distinguishes HashMap and LinkedHashMap from each other is that Hashmap does not maintain the order of the stored entries in a map. On the other hand, LinkedHashMap uses a hybrid data structure … [Read more...]

Difference Between List and ArrayList in Java

List and ArrayList are the members of Collection framework. List is a collection of elements in a sequence where each element is an object and elements are accessed by there position (index). ArrayList creates a dynamic array of objects that increases or reduces in size whenever required. The primary difference between List and ArrayList is that List is an interface and ArrayList is a class. Let us study the difference between the List and ArrayList with the help of comparison chart shown … [Read more...]

Difference Between Analog and Digital Signal

Analog and Digital are the different forms of signals. Signals are used to carry information from one device to another. Analog signal is a continuous wave that keeps on changing over a time period. Digital signal is discrete in nature. The fundamental difference between analog and digital signal is that analog signal is represented by the sine waves whereas, the digital signal is represented by square waves. Lets us learn some more differences between analog and digital signal with the help … [Read more...]

Difference Between Modem and Router

Modem and router are the networking devices. Where a modem connects your computer or your network to the telephone line (Internet Service Provider) for accessing the internet. A router is meant for connecting different networks together. The basic difference between modem and router is that modem necessary for connecting your computer network to the internet whereas, a router is essential to direct the path to the traffic of data packets on the network. Let us study some more differences … [Read more...]

Difference Between Circuit Switching and Packet Switching

Circuit switching and packet switching are the two switching methods that are used to connect the multiple communicating devices with one another. Circuit Switching was particularly designed for voice communication and it was less suitable for data transmission. So, a better solution evolved for data transmission called Packet switching. The main difference between circuit switching and packet switching is that Circuit Switching is connection oriented whereas, Packet Switching is … [Read more...]

Difference Between Router and Switch

Router and switch both are the connecting devices in networking. A router is used to choose the smallest path for a packet to reach its destination. A switch stores the arrived packet, process it to determine its destination address and forwards the packet to a specific destination. The basic difference between a router and a switch is that a router connects different networks together whereas, a switch connect multiple devices together to create a network. Let us study some other differences … [Read more...]