Hardware

Introduction to C programming for SCADA monitoring systems
September 25, 2019
SCADA monitoring refers to collecting the status of certain indicators and then sends them to a central station. Those indicators may represent the status of line voltages, the status of currents out of the station, the degree of temperature at the current station, etc. Writing c program for a SCADA system is not difficult provided ....

Collision Domain Understanding – Cisco CCNA Lesson
September 25, 2019
When two computers on the network send data to each other, the data will flow out to all other computers on the network and the MAC address is checked by every computer until the address is match with the correct recipient. The protocol that regulates this process is called CSMA/ ....

Communication over data networks
September 25, 2019
Generally, there are many forms of communication, such as phone, video, and text communication. Those are normal forms of communication. To be able to support the delivery of millions of data messages among millions of people among the world, web communication will become vital. In this way, the use of ....

The Concept of converged network
September 25, 2019
Communication technologies arose at different times and places. For example, the Television and radio was found before satellites. Each uses different communication technology. Each technology uses a set of protocols and techniques that is different from each other. Integrating all of these technologies into one communication network leads to the ....

The role of packet switching for network redundancy
September 25, 2019
Building a redundant (fault tolerant) network requires some techniques in terms of how data is transmitted and also the network infrastructure. The idea begins when the United States department of defense wanted to design a communication network that will work even if external destruction occurs for some of the infrastructure. ....

The role of quality of service in congested networks
September 25, 2019
When people started using the internet, they are satisfied about the services it provides. Even if there are some delays in the services, they were satisfied about the services. With time, people demanded getting services with a better quality of service. Quality of service is a technique used in data networks ....

The role of Security in Data Networks
September 25, 2019
The internet is growing with time to service several classes of applications. Some of them are for personals and others are for business. Personal based applications often require less security whether business applications require higher level of security. The most data types that need to be secured are like business ....

Components of the network: end devices and intermediate devices
September 25, 2019
In data networks, messages are transmitted from the one person called sender to another called receiver. The path that the message is transmitted over could be a single link or it could be combination of multiple devices called network devices or intermediate devices. Those devices are not seen by the ....

Computer Processors in view of Operating System
September 25, 2019
Basically any operating system is essentially related to the hardware of the computer where it runs on. It compromises two things: first, the instruction set. Second it manages the resources of the computer. The hardware of the computer must be pragmatically visible to the operating system. In other words, it ....

Sending Data to Remote Server using GPRS Modem
September 25, 2019

Many applications require sending data to remote servers for the sake of end point monitoring. This is especially required for Scada Control systems. In such systems, a collection of status signals are required to be monitored periodically. If the status is changed, the operator ....