Network Operating System
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Network operating systems (NOS) coordinate the activities of multiple computers across a network, acting as a director to keep the network running smoothly. There are two major types of NOS: peer-to-peer and client/server. Peer-to-peer NOS allow users to share files located on their computers without a centralized server, while client/server NOS centralize resources and applications on dedicated file servers. Popular examples of peer-to-peer NOS include AppleShare and Windows for Workgroups, while examples of client/server NOS are Novell Netware and Windows 2000 Server.
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The Slides Were Prepared using Discovering Computers. It ll help yuuu
please inform me ab8 any mistake @ shahid.mohana@gmail.com
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Network archetecture
Network architecture defines the complete framework of an organization's computer network, including hardware components, cabling, device types, network layouts and topologies, physical and wireless connections, implemented areas, and future plans. It also includes the software rules and protocols. The network architecture provides a detailed overview of the network and is designed by a network manager/administrator with input from network engineers. The two most widely used types of network architecture are peer-to-peer and client/server.
Kinds of networks
The document describes different types of computer networks, including peer-to-peer networks where all computers are equal and function as both clients and servers without a central administrator, and server-based networks where a central server controls resources and security is managed by an administrator. It also discusses local area networks (LANs) which connect computers within a single location using cables, wireless technology, or both, allowing for sharing of hardware, software, files, and other resources.
Advantages-and-Disadvantages-of-P2P-Network-Client-Server-Network.pdf
Peer-to-peer networks allow computers to share files and resources directly with each other without needing to go through a central server. In a peer-to-peer network, if one computer fails it does not disrupt the whole system. However, peer-to-peer networks provide less security and organization than client-server networks. Client-server networks use a central server computer to store and organize files, providing more security but creating single points of failure and potential bottlenecks if overburdened. Both network types have advantages and disadvantages related to decentralization, security, performance and maintenance.
cluster computing
This document provides an overview of cluster computing. It defines a cluster as a group of loosely coupled computers that work together closely to function as a single computer. Clusters improve speed and reliability over a single computer and are more cost-effective. Each node has its own operating system, memory, and sometimes file system. Programs use message passing to transfer data and execution between nodes. Clusters can provide low-cost parallel processing for applications that can be distributed. The document discusses cluster architecture, components, applications, and compares clusters to grids and cloud computing.
Ch01 ce
This document provides an overview of networking concepts and components. It defines networking as connecting devices to share information and resources. Key points include:
- Networks can be local or wide area and use various media like cables or wireless.
- Protocols and software enable communication between networked devices using clients, servers, and services.
- Peer-to-peer networks have flexible sharing but limited security, while server-based networks centralize resources but require dedicated hardware.
- Network servers play important roles like file/print sharing, email, web, and running applications.
Hardware1
A network connects two or more computers to share resources like printers and files. Businesses need computer networks to avoid duplicating equipment, communicate efficiently, and manage shared resources, which increases productivity and saves money. The main types of networks are local area networks (LANs) within an office or building, metropolitan area networks (MANs) within a city, and wide area networks (WANs) across large geographic areas.
Hardware1
A network connects two or more computers to share resources like printers and files. There are two main types of networks: wired networks that connect computers through cables and wireless networks that connect through radio waves. Networks allow businesses to share equipment and resources efficiently, communicate easily, and increase productivity while saving money compared to individual computers.
Compare peer
Peer-to-peer networks have no central server and all computers are equal, functioning as both clients and servers. They have low setup costs but also weak security and single computer failures can disrupt printing or file sharing. Client/server networks have centralized servers that manage security, backups, larger user capacity and remote access, but require upfront investment and maintenance staff. Both network types have advantages for certain environments depending on needs around costs, security, flexibility and scale.
Please identify hardware device(s) (peripherals) and describe how a NO.docx
Please identify hardware device(s) (peripherals) and describe how a NOS configure and manage the device(s) in a distributed environment. What are the device management techniques out there that are adopted by NOSs in such a networked environment? How do NOSs resolve device conflict when it occurs? (For example, when a system resource has been allocated to two or more network devices).
Solution
The term network operating system is used to refer to two rather different concepts:
A specialised operating system for a network device such as a router, switch or firewall.
An operating system oriented to computer networking, to allow shared file and printer access among multiple computers in a network, to enable the sharing of data, users, groups, security, applications, and other networking functions.[1] Typically over a local area network (LAN), or private network. This sense is now largely historical, as common operating systems generally now have such features included.
There are two types of NOS :
Peer to Peer
In a peer-to-peer network operating system users are allowed to share resources and files located on their computers and access shared resources
from others. This system is not based with having a file server or centralized management source. A peer-to-peer network sets all connected computers
equal; they all share the same abilities to use resources available on the network
The advantages include:
Ease of setup
Less hardware needed, no server need be acquired
The disadvantages include:
No central location for storage
Less security than the client–server model
Client Server
Network operating systems can be based on a client–server model (architecture) in which a server enables multiple clients to share resources.
Client-server network operating systems allow networks to centralize functions and applications in one or more dedicated file servers.
The server is the center of the system, allowing access to resources and instituting security. The network operating system provides
the mechanism to integrate all the components on a network to allow multiple users to simultaneously share the same resources regardless of
physical location
The advantages include:
Centralized servers are more stable.
Security is provided through the server.
New technology and hardware can be easily integrated into the system.
Hardware and the operating system can be specialized, with a focus on performance.
Servers are able to be accessed remotely from different locations and types of systems.
The disadvantages include:
Buying and running a server raises costs.
Dependence on a central location for operation.
Requires regular maintenance and updates.
.
SDN 101: Software Defined Networking Course - Sameh Zaghloul/IBM - 2014
This document provides an overview of software defined networking (SDN). It discusses how SDN enables data center teams to use software to efficiently control network resources, compared to traditional network switches. The document outlines several SDN topics and related technologies, including SDN standards, network function virtualization, use cases, sample projects, surveys, case studies, online courses, and software tools. It also includes sections on SDN architecture and how SDN is important for virtual environments and VM mobility.
Network architecture
The document discusses two main network architectures: client/server and peer-to-peer. In a client/server network, one computer acts as a centralized server that provides services to other client computers on the network. A peer-to-peer network does not have a centralized server; instead, all computers on the network have equal capabilities to share resources directly with each other. The key differences between the architectures are that client/server networks have higher cabling costs but are easier to manage, while peer-to-peer networks are cheaper but harder to manage.
System models for distributed and cloud computing
This document discusses different types of distributed computing systems including clusters, peer-to-peer networks, grids, and clouds. It describes key characteristics of each type such as configuration, control structure, scale, and usage. The document also covers performance metrics, scalability analysis using Amdahl's Law, system efficiency considerations, and techniques for achieving fault tolerance and high system availability in distributed environments.
L4Network Architecture.pptx
The document discusses different types of network architectures. It describes peer-to-peer architecture as a decentralized model where computers connected over the Internet can directly share files without a central server. It also describes client-server architecture as a centralized model with a server computer managing resources for client computers. Less common architectures mentioned include centralized, distributed, and collaborative models.
Synapseindia revirews about networking
Synapse india Reviews:
Carries network messages
Connects machines together on network
Four types:
Metallic cable coaxial - dated
Twisted pair
Fiber optic cable
Wireless
Basic LAN types
This lecture explains the basic types of Local Area Network (LAN), their various applications and suitability including their pros and cons. It also provide the design and implementation perspective the various LAN types in Network Engineering and ICT..
Slide06 Networked Computing
This document discusses network computing and client/server systems. It covers the following key points:
- Network computing involves connecting stand-alone computers via a switch, LAN, or internet and dividing an application into parts that can be processed on different nodes.
- Client/server systems use sockets to establish connections between clients and servers over a TCP port. Once connected, clients and servers can send and receive data via input/output streams.
- Remote procedure calls allow procedures located on one computer to be called from another computer over a network, with parameters and results passed between the computers.
Basic of Networking
Basic of NetworkingAmity University | FMS - DU | IMT | Stratford University | KKMI International Institute | AIMA | DTU
A network connects two or more computers so that they can share information, applications or resources. CNE CHP1.pdf
This document provides an overview of a computer network course, including its outcomes, chapters, and key concepts. The first chapter covers fundamentals of computer networks, including definitions of networks and computer networks, and the need for and applications of computer networks. It also discusses advantages of computer networks and classifications based on geographical area and transmission technology. Network computing models like peer-to-peer, client-server, and distributed systems are defined along with their characteristics. The roles and functions of network operating systems are outlined.
Distributed operating system
A distributed system is a collection of independent computers that appears as a single coherent system to users. It provides advantages like cost-effectiveness, reliability, scalability, and flexibility but introduces challenges in achieving transparency, dependability, performance, and flexibility due to its distributed nature. A true distributed system that solves all these challenges perfectly is difficult to achieve due to limitations like network complexity and security issues.
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Please identify hardware device(s) (peripherals) and describe how a NO.docx
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SDN 101: Software Defined Networking Course - Sameh Zaghloul/IBM - 2014
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- 1. FAKLUTI PENGURUSAN MAKLUMAT NETWORK OS IMD 251 SUPPORT SERVICES AND MAINTENANCE II ISMA ISHAK 2009
- 2. NETWORK OPERATING SYSTEM Unlike operating systems, such as DOS and Windows, that are designed for single users to control one computer, network operating systems (NOS) coordinate the activities of multiple computers across a network. The network operating system acts as a director to keep the network running smoothly. The two major types of network operating systems are: • Peer-to-Peer • Client/Server Peer-to-Peer Peer-to-peer network operating systems allow users to share resources and files located on their computers and to access shared resources found on other computers. However, they do not have a file server or a centralized management source (See fig. 1). In a peer-to-peer network, all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed primarily for small to medium local area networks. AppleShare and Windows for Workgroups are examples of programs that can function as peer-to-peer network operating systems. Fig. 1. Peer-to-peer network 1 | P a g e
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