1st Year Computer Chapter 2 Notes
Complete handwritten 1st Year Computer Chapter 2 Notes written by Professor Mr. Tayyab Shahzad Suib. These notes are very helpful in the preparation of 1st Year Computer Chapter 2 Notes of 1st year Computer Science for the students of the intermediate and these are according to the paper patterns of all Punjab boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- What is a computer Network?
- Write some uses of a computer network.
- What is the difference between a server computer and a terminal?
- What is a Workgroup? What are clients?
- What is the peer-to-peer network model?
- Define dedicated server.
- What is the hybrid model?
- What is the Client/Server Model?
- What is LAN? List some components of LAN.
- What is the use of Network-Interface Card?
- What is a Bridge? What is Gateway?
- What is a Router? What is WAN?
- What is a host computer? What is MAN?
- What is network protocol? What is Ethernet?
- Define the term token used in networking.
- What is the use of a Token ring? What is token passing?
- Write the names of different LAN protocols.
- What is ARC net? What is the OSI Model?
- Write the names of the seven layers of the OSI Model.
- What is the purpose of the Application Layer of the OSI model?
- What is the purpose of the Presentation Layer of the OSI model?
- What is the purpose of the Session Layer of the OSI model?
- What is the purpose of the Transport Layer of the OSI model?
- What is the purpose of the network Layer of the OSI model?
- What is the purpose of the Data link Layer of the OSI model?
- What is the purpose of the Physical Layer of the OSI model?
- What is tree topology?
- What is the difference between intranet and extranet?
- Define CSMA/CR. How does CSMA/CD work?
- Define CSMA/CS. Define ISDN.
- Define DSL.
- Information networks, or computer networks, are at the convergence of two important technologies: computing and telecommunications. This convergence has resulted in local area networks (LANs), metropolitan networks (MANs), wide-area networks (WANs), and the Internet. Computer networks were originally research experiments between the computer scientists, telecommunication engineers, and other researchers. These scientific and engineering experiments, however, have since become immense social experiments as well. Information networks have brought many useful benefits. At the same time, however, they have given rise to some problems as well.
- Information networks such as the World Wide Web are characterized by the interplay between heterogeneous content and a complex link structure involved. Link structure can be a powerful source of information about the underlying content in the network. We can think of a network as a large circulatory system, through which information continuously flows. This diffusion of information can happen rapidly or slowly; it can be disastrous -- in a panic or failure -- or beneficial -- as in the spread of innovations. So, In the context of the Web, we can try to identify high-quality information resources it contains.
- The information networks can be examined from many points of view, partly because of the cultural meaning we ascribe to computing and telecommunications and the central role that they play in politics, social interactions, and commerce etc. As international business information is fast becoming a prime commodity, so information based networks are being frequently developed to help small and medium enterprises communicate about business needs, expand their markets, share their resources, knowledge and experience.