The primary interaction of operating systems is with applications and users.
Operating systems serve as a bridge between applications and users, facilitating their interactions and enabling the smooth execution of tasks. When a user interacts with an application, such as opening a document or launching a web browser, the operating system plays a crucial role in managing the underlying resources and coordinating the necessary actions.
At the application level, the operating system provides a platform for software developers to create and run their programs. It offers various services and APIs (Application Programming Interfaces) that applications can utilize to access system resources like memory, storage, and network connectivity. The operating system also handles process management, ensuring that multiple applications can run concurrently and share system resources efficiently. It manages processes' execution, scheduling, and synchronization, allowing for smooth multitasking and resource allocation.
Additionally, the operating system provides a user interface through which users can interact with applications and control the system. This can be in the form of a graphical user interface (GUI), command-line interface (CLI), or a combination of both. The operating system handles user input, such as mouse clicks or keyboard strokes, and translates them into actions that the applications can understand. It also manages output, displaying application windows, menus, and dialog boxes on the screen, and relaying information to the user.
In terms of throughput, the operating system plays a crucial role in optimizing resource allocation and managing system performance. It allocates CPU time, memory, and other resources to applications based on their priority and demand, ensuring fair and efficient resource utilization. By monitoring system performance, the operating system can identify bottlenecks and optimize resource usage to enhance overall throughput.
In summary, the operating system's interactions are primarily with applications and users. It provides a platform for applications to run, manages system resources, facilitates user interactions, and optimizes throughput to ensure efficient operation of the system.
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By the mid 1980s, the ARPANET had grown into what we now call the Internet, connecting computers owned by large institutions, small organizations, and individuals all over the world. True False
True. By the mid-1980s, the ARPANET had indeed evolved into what we now recognize as the Internet, linking computers owned by various entities worldwide.
True. The ARPANET, initially created by the U.S. Department of Defense's Advanced Research Projects Agency (ARPA) in the late 1960s, served as the foundation for the development of the Internet. It started as a network connecting a few large institutions, such as universities and research centers, facilitating communication and resource-sharing between them. Over time, the network expanded, incorporating smaller organizations and eventually reaching individual users around the globe.
By the mid-1980s, the Internet had become a decentralized network, consisting of interconnected networks using the Transmission Control Protocol/Internet Protocol (TCP/IP) suite as its underlying communication protocol. This expansion allowed for the exchange of data and information on a much broader scale, enabling global communication and collaboration. The Internet's growth during this period laid the groundwork for its exponential development in the subsequent decades, revolutionizing the way people communicate, access information, conduct business, and engage in various online activities.
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What is not one of the three characteristics of tcp in its role as a reliable delivery protocol?.
Transmission Control Protocol (TCP) is the most popular protocol utilized for communication across the internet. TCP, as a reliable delivery protocol, has several characteristics. However, one of the three characteristics of TCP in its role as a reliable delivery protocol is the ability to perform a quick, continuous, and reliable flow control.
The first characteristic of TCP is connection-oriented communication. The connection-oriented communication guarantees that the sending device is connected to the receiving device before data transmission. TCP guarantees that the receiver is ready to receive data before transmission occurs. Therefore, the receiver will have a buffer ready to store incoming data.
Therefore, Flow control is one of the three characteristics of TCP in its role as a reliable delivery protocol. It allows the sender to control the flow of data based on the receiver's buffer size, preventing buffer overflow or congestion.
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