TCP/IP model The TCP/IP model was developed prior to the OSI model. The TCP/IP model is not exactly similar to the OSI model. The TCP/IP model consists of five layers: the application layer, transport layer, network layer, data link layer and physical layer. The first four layers provide physical standards, network interface, internetworking, and...
What is OSI Model? The OSI Model is a logical and conceptual model that defines network communication used by systems open to interconnection and communication with other systems. The Open System Interconnection (OSI Model) also defines a logical network and effectively describes computer packet transfer by using various layers of protocols. Characteristics of OSI Model...
Computer Memory A computer is an electronic device that takes raw data as input and, processes it, then provides the desired result. It has the potential to execute programmed computations quickly and with great accuracy. Put in another way, the computer receives input such as data and stores it together with instructions in memory (use...
A router is a device that connects two or more packet-switched networks or subnetworks. It serves two primary functions: managing traffic between these networks by forwarding data packets to their intended IP addresses, and allowing multiple devices to use the same Internet connection. How does a router work? Routers guide and direct network data, using packets...
Computer Network Security Computer network security consists of measures taken by business or some organizations to monitor and prevent unauthorized access from the outside attackers. Different approaches to computer network security management have different requirements depending on the size of the computer network. For example, a home office requires basic network security while large businesses...
Examples Of Wide Area Network: Mobile Broadband: A 4G network is widely used across a region or country. Last mile: A telecom company is used to provide the internet services to the customers in hundreds of cities by connecting their home with fiber. Private network: A bank provides a private network that connects the 44 offices. This network...
Computer Network Types A computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share their resources, data, and applications. A computer network can be categorized by their size. A computer network is mainly of four types: LAN(Local Area Network) PAN(Personal Area Network) MAN(Metropolitan Area Network)...
CABLE TV INTERNET CONNECTION Cable TV Internet Connection is a high speed Internet connection service provided through existing Cable TV lines. You can watch TV in a normal manner and at the same time access the Internet. It is one of the most widely growing services in homes because of its affordability and ease of...
What is Internet Connection? A user can connect to the Internet either by dialing into an ISP’s computer or by directly connecting to the ISP. A dial-up connection is the one you initiate by dialing into a modem over a telephone link whereas a direct connection is a continuous connection to an ISP through a...
Gone are the days when people used to buy CDs/DVDs to load software onto their computers or had to download huge installation applications (almost). Thanks to high-speed internet, now we can send large volumes of data between local computers and external servers quickly. The tech industry has been steadily moving towards cloud computing, a computing...
