What is tor browser Tor browser is a free and open-source browser like Firefox. It hides your IP and identity while you are browsing websites in this browser. You can use the internet anonymously. It redirects your requests to at least three nodes. It consists of 7 thousand relays. This browser was first released on 20 September 2002. When you sent a request to the tor browser by [...]
Definition of tree topology A type of network topology in which nodes are connected in such a way that it looks like a tree. Tree topology is a combination of bus topology and star topology. In a bus topology nodes are connected to the central bus. While in a star topology nodes are connected to hubs. Tree topology is an expansion of tree and bus topology. It is [...]
Definition of command line interface (CLI) CLI is an interface in which different text commands are written and then these commands are executed by the operating system. It is a text-based interface. CLI is most popular in the 1960s when there was no GUI (graphical user interface) available for computers. During the early days, there was no mouse available for the operating system and users only interact with [...]
What is ring topology: A network topology in which every computer is connected to two computers one on each side. The computers are connected in such a way that it forms a ring shape. Data flows from source computer to destination computer bypassing from in between computers. The nodes (computers) are connected to form a closed path. The last computer is connected to the first computer making a [...]
Collision detection is the method of detecting the data collision in the network. Suppose there are two computers A and B connected in the network. Computer A and computer B first checks if the medium is free to transmit the data. Suppose medium is free so both computers starts sending the data. After some time data from computer A and B collides. When data collides with each other [...]
Definition of star topology A type of topology in which computers or devices are directly connected to the central hub. The devices which are connected be either a laptop, workstation, server, host, tablet, smartphone or printer. The central hub can be either of the hub, switch, router or a central computer. In making a network in star topology twisted pair cable, fiber optics, RJ-45 or coaxial cable is [...]
Definition of fault tolerance: Fault tolerance is a property of the system that helps to continue its working when a fault occurs. A distributed system is a system that has different components from different machines. The machines are located in different locations. All machines work together to perform any task. For example, Google is a distributed system, there are different servers located in different countries. All servers work [...]
How computers are connected in the network is known as network topology. Bus topology is also a type of network topology. Definition of bus topology: A type of topology in which all the workstations, printers, servers, scanners, and laptops are connected to a common cable. The common cable is also known as a bus. The cable which is used to connect computers is known as coaxial cable. When [...]
Definition of multiprocessor operating system An operating system that supports multiple processors is known as a multiprocessor system. In this type of system, multiple threads of the program are executed in parallel. Multiprocessor Operating System Types of multiprocessor operating system There are two main types of multiprocessor OS 1) Asymmetric multiprocessing system In this type of system, one processor behaves as a master and the other processors behave [...]
Definition of local area network (LAN) A network that is used to connect computers in a single building or group of buildings. A computer in LAN may be a PC, laptop, embedded computer or mobile computer like smartphone, tablet, and smartwatch. An experiment of connecting computers over LAN had started in the 1970s. In older days printers and other storage devices were very expensive. So these devices were [...]
