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Components of a Network

Components of a Network
Written by Steve Dowling on 2016-12-02


There are three basic hardware components for a data communications network: a server (e.g., personal computer, mainframe), a client (e.g., personal computer, terminal), and a circuit (e.g., cable, modem) over which messages flow. Both the server and client also need special-purpose network software that enables them to communicate.
The server stores data or software that can be accessed by the clients....(Read More)

Computer Networking Key Terms: C

Computer Networking Key Terms: C
Written by Steve Dowling on 2016-11-11


Key Data Communications and Networking terms that begin with C are:

CA*net: The Canadian network that forms part of Internet2.

Carrier: An analog signal at some fixed amplitude and frequency that then is combined with an information-bearing signal to produce an intelligent output signal suitable for transmission of meaningful information. Also called carrier wave or carrier frequency.

Carrier...(Read More)

Memory Hiercarchy

Memory Hiercarchy
Written by Steve Dowling on 2016-11-05


In computer architecture the memory hierarchy is a concept used to discuss performance issues in computer architectural design, algorithm predictions, and lower level programming constructs involving locality of reference. The memory hierarchy in computer storage separates each of its levels based on response time. Since response time, complexity, and capacity are related,[1] the levels may also be...(Read More)

Operating System Components

Operating System Components
Written by Steve Dowling on 2016-11-05


The components of an operating system all exist in order to make the different parts of a computer work together. All user software needs to go through the operating system in order to use any of the hardware, whether it be as simple as a mouse or keyboard or as complex as an Internet component.

Kernel
Main article: Kernel (computing)

A kernel connects the application software to the hardware...(Read More)

Types of operating systems

Types of operating systems
Written by Steve Dowling on 2016-11-05


Single- and multi-tasking
A single-tasking system can only run one program at a time, while a multi-tasking operating system allows more than one program to be running in concurrency. This is achieved by time-sharing, dividing the available processor time between multiple processes that are each interrupted repeatedly in time slices by a task-scheduling subsystem of the operating system. Multi-tasking...(Read More)

Operating System

Operating System
Written by Steve Dowling on 2016-11-05


An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function.

Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass...(Read More)

Software Development Life Cycle Summary

Software Development Life Cycle Summary
Written by Steve Dowling on 2016-10-26


The below gives you an insight into the pros and cons and the practical applications of the SDLC
models discussed.

Waterfall and V model are traditional SDLC models and are of sequential type. Sequential means that the next phase can start only after the completion of first phase. Such models are suitable for projects with very clear product requirements and where the requirements will not change...(Read More)

Computer Networking Interconnectivity

Computer Networking Interconnectivity
Written by Steve Dowling on 2016-10-17


Components of a network can be connected to each other differently in some fashion. By connectedness we mean either logically , physically , or both ways.

Every single device can be connected to every other device on network, making the network mesh.
All devices can be connected to a single medium but geographically disconnected, created bus like structure.
Each device is connected to its left...(Read More)

Computer Networking Geographical Span

Computer Networking Geographical Span
Written by Steve Dowling on 2016-10-17


Geographically a network can be seen in one of the following categories:

It may be spanned across your table, among Bluetooth enabled devices,. Ranging not more than few meters.
It may be spanned across a whole building, including intermediate devices to connect all floors.
It may be spanned across a whole city.
It may be spanned across multiple cities or provinces.
It may be one network covering...(Read More)





Yoozpaper is a social network of online newspapers written by individuals or groups. Yoozpaper takes free articles that members write and formats them as an online newspaper.

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