What is the origin of the distributed operating system

Such a professional question does not add ...... points

I'll give you an original answer.

In the past, it was not necessary to be distributed, because the amount of data was not large, and the calculation was not as complex as it is now.

Now, with the development of hardware, the cost of improving the computing performance of hardware has become higher and higher, and the cost of increasing the computing speed on a super-high-level computer is far greater than the cost of using multiple ordinary computers, and it is easy to expand, easy to maintain, and the computer can join or leave the cluster at any time.

From this, there is a need for a distributed operating system.

If I knew you were asking for this kind of thing, I wouldn't have given it to you. It took so much effort, and it turned out that what people wanted was a copy. In the future, there will be such a requirement to make it clear in advance, saving the time of well-wishers.

The differences between the distributed operating system and the network operation system are as follows:

First, the subject is different.

1. Distributed operating system: it is a software system built on the network;

2. Network operating system: It is a kind of software program that can replace the operating system, and it is a special operating system that provides services to the network computer.

Second, the characteristics are different.

1. Distributed operating system: with a high degree of cohesion and transparency. Hence the network and distributed systems.

2. Network operating system: through the network, data and various messages can be transmitted to each other, which is divided into server and client.

Third, the composition is different.

1. Distributed operating system: The distributed system is composed of multiple computers, which are geographically dispersed, and can be scattered in a unit, a city, a country, or even a global scale;

2. Network operating system: by time-sharing operating system.

Plus the evolution of network capabilities.

A distributed software system is a software system that supports distributed processing, and is a system that performs tasks on a multiprocessor architecture interconnected by a communication network. Including distributed operating system and distributed programming language.

and its compilation (interpretation) system, distributed file system.

and distributed database systems, among others.

The network operating system is a kind of software program that can replace the operating system, is the heart and soul of the network, and is a special operating system that provides services to the network computer. Through the network, data and various messages can be transmitted to each other, which is divided into server and client. Whereas, the main function of the server is to manage various resources and network devices on the server and network.

The client has the function of receiving the data transmitted by the server to use, so that the client can clearly search for the resources it needs.

The function of the network operating system provides efficient and reliable network communication capabilities; Provide a variety of network service functions.

First, the subject is different.

1. Distributed operating system: it is a software system built on the network;

2. Network operating system: It is a software program that can replace the operating system, and it is a special operating system that provides services to the network computer.

Second, the characteristics are different.

2. Network operating system: through the network to achieve mutual transmission of data and various messages, divided into server (server) and client (client).

Third, the composition is different.

1. Distributed operating system: A distributed system consists of multiple computers, which are geographically dispersed and can be scattered in a unit, a city, a country, or even on a global scale. The functions of the whole system are distributed on each node, so the distributed system has the distribution of data processing.

2. Network operating system: evolved by time-sharing operating system plus network function. The basic unit of the system is composed of a host and a number of terminals connected to the host, and the processing and control of information is centralized.

The main conceptual difference between the network operating system and the distributed operating system is that the network operating system can be built on different operating systems, that is to say, it can realize the unified configuration of network resources through network protocols on different native operating systems, and constitute a network operating system in a large range. The network operating system does not require transparent access to network resources, that is, the location and type of resources need to be specified, and local resources and remote resource access are treated differently. Distributed emphasizes unity, which is architected by an operating system.

In this operating system, the concept of networking is diluted at the application layer. All resources (local and off-site) are managed and accessed in the same way, and users don't have to care about where they are or how they're stored.

One. Distributed systems.

advantages. 1.reliability, service redundancy, the crash of one server does not affect other services;

3.resource sharing;

4.Higher system capacity, with multiple computers, greater request and processing capacity than other systems;

5.Modularity, higher degree of module reuse;

6.Improve team collaboration processes, with each team responsible for a different module;

Two. What is a distributed system.

Distributed system is a system that implements specific functional services through a computer network by multiple computers and communication software components, and is highly cohesive and transparent because it is a system built on the network.

A distributed operating system is an operating system that enables collaboration and resource sharing across multiple computers through network connections. To put it simply, it is to connect the operating systems on multiple computers together to form a virtual operating system, so as to achieve resource sharing and work together.

Distributed operating systems are usually composed of multiple nodes, each of which refers to the coarse potato is an independent computing machine, and data exchange and communication between them are carried out through a communication network. These nodes can be distributed across different geographies or within the same geographies. A distributed operating system can provide higher performance and reliability than a stand-alone operating system because it allows users to leverage the processing power and storage power of multiple computers while also avoiding a single point of failure.

Distributed operating systems are widely used, including cloud computing, big data processing, Internet of Things and other fields. Common distributed operating systems include Linux clusters, Windows Server clusters, Google's MapReduce, and Hadoop.

Distributed software systems are software systems that support distributed processing, and are systems that perform tasks on a multiprocessor architecture interconnected by a communication network.

It includes distributed operating systems, distributed programming languages and their compilation (interpretation) systems, distributed file systems, and distributed database systems.

A distributed database system is a collection of several stations. These stations are also called nodes, they are connected together in the communication network, each node is an independent database system, they all have their own database, processing machine, terminal, and their own local database management system.

Therefore, a distributed database system can be seen as a federation of a series of centralized database systems. They logically belong to the same system, but are physically distributed.