Internet-based threats are Malware programs which can be targeted when we use the Internet. These Web-based threats include a range of malicious software programs which are designed to infect victims' computers.Major Threats on InternetSome of the major threats on internet are as follows −SpamGenerally we received a lot of Emails ... Read More

Skype is a Microsoft product which offers free video and audio calling which is also having the ability to call landlines and smartphones with paid services anywhere in the world. It has a first mover advantage. It came into existence before the Facebook messenger.Facebook Messenger allows users to play in-app ... Read More

A computer virus is a malware, which corrupts or destroys our files on the system. The computer virus is not a new thing to us. It was created and started spreading around the 1980's. Virus is a type of malware which is capable of self-replicating itself and spreads from one ... Read More

The Turing machine (TM) is more powerful than both finite automata (FA) and pushdown automata (PDA). They are as powerful as any computer we have ever built.Formal Definition of Turing MachineA Turing machine can be formally described as seven tuples(Q, X, Σ, δ, q0, B, F)Where, Q is a finite ... Read More

A semaphore is a shared variable which is used to implement mutual exclusion between system processes. It is mainly helpful to solve critical section problems and is a technique to achieve process synchronization.There are two types of semaphores which are as follows −Binary semaphore − Can take only two values, ... Read More

Linux File Hierarchy Structure is defining the directory structure and the contents of the directory which have been alike to the Unix-like Operating Systems. It is maintained by the Linux Foundation.They are being used for looking at all files and the directories which appear under the root directory. They can ... Read More

Interrupts are generally called signals which are generated by the software or hardware when a particular event or process requires immediate attention. So, the signal informs the processor about a high priority and urgent information demand causing interruption in the current working process.Thus, whenever an interruption occurs the processor finishes ... Read More

A process is defined as a program in execution and an entity that represents the basic unit of work to be implemented in the system.Process switchIt is defined as that the processor switches from one thread/process to another thread or process. It makes the contents of the CPU registers and ... Read More

User Interface Design is the design of the interface or system which is directly accessible by the user and they interact with in order to do a task. It establishes the way with which the user will interact with the product.Its main aim is to enhance the appearance of the ... Read More

Let us understand the concepts of user interface and user interaction designs respectively.User Interface DesignThe design of the user interface is directly accessible by the user and they interact with in order to do a task. It establishes the way with which the user will interact with the product.Its main ... Read More