Due to the radical change in the way we work in IT caused by COVID-19, communications and IT professionals and administrators have been forced to implement or improve necessary mechanisms to ensure security in corporate environments while maintaining their availability for users working from home or anywhere. There are a variety of mechanisms that help to achieve the objective – some new, others...
Parallel computing is a form of computation in which two or more processors are used to solve a problem or task. The technique is based on the principle that some tasks can be split into smaller parts and solved simultaneously. Parallel computing has become the dominant paradigm when it comes to manufacturing processors, thus making it essential to know not only the...
We’ve all heard the phrase that timing is everything. Nowadays, the buses that connect, for example, processors to main memory require very precise timing, in the order of tenths of nanoseconds. Manufacturers provide all this information in their datasheets, but it needs to be combined with the appropriate Input/output Buffer Information Specification (IBIS) models and PCB (printed circuit...
Si dividimos un sistema de comunicación genérico en sus partes más “simples” podemos distinguir cuatro elementos: Un emisor, un receptor, un mensaje y un medio o canal para comunicarlo. Uno de los problemas que surgen desde que se establece la comunicación es el acceso al medio. Cuando tenemos un canal de comunicación compartido entre varios usuarios o estaciones es necesario contar con un...
We are approaching the end of 2019 and the beginning of a new decade in which we are expecting amazing technological innovation capabilities. The last few years have seen repeated reports of trends, with much talk of 5G, cloud services, blockchain, edge computing, IoT, and so forth. A significant departure from previous years is foreseen in 2020, where certain technologies widely talked about...
Accessing the Internet from space is not new, with many companies (OneWeb, Space Norway, Telesat, etc.) now offering it. More recently, however, a new participant has emerged on the scene promising something different – Starlink. SpaceX’s plan is to create a network of 12,000 satellites that fly from 350 to 1160 km above our heads and provide fast Internet access using lasers. Each satellite...
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