miércoles, 5 de noviembre de 2014
domingo, 2 de noviembre de 2014
lunes, 27 de octubre de 2014
el Purgatorio, Jordi Soler
La nanotecnología ha logrado reducir una biblioteca de miles de libros al tamaño de una tableta, y una discoteca de miles de discos al tamaño de un artefacto de la talla de un mechero. También ha logrado que millones de personas, al tener tantas almas prisioneras en la memoria del teléfono, lleven un purgatorio portátil en el bolsillo.
domingo, 26 de octubre de 2014
viernes, 3 de octubre de 2014
Internet of Things
El concepto Internet of Things (IoT) es acuñado por Kevin Ashton en 1999, y aparece como el siguiente paso en cuanto a conectividad entre máquinas, permitiendo que objetos cotidianos de nuestro alrededor se comuniquen entre ellos.
domingo, 14 de septiembre de 2014
lunes, 1 de septiembre de 2014
martes, 26 de agosto de 2014
sábado, 28 de junio de 2014
sábado, 21 de junio de 2014
lunes, 16 de junio de 2014
miércoles, 4 de junio de 2014
sábado, 31 de mayo de 2014
miércoles, 7 de mayo de 2014
TCP/IP 40th Anniversary
By the early 1970s, the practice of connecting once stand-alone computers together into general-purpose computer networks was barely five years old. But already there were more than half a dozen such networks: ARPANet, NPL Mark I, CYCLADES, and so on. ARPA itself was in the process of commissioning two more; the Packet Radio Network (PRNET), and the Satellite Network (SATNET).
But there was a big problem: none of these networks could talk to each other!
The solution came to several researchers in that early community around the same time. What was needed was a network of networks, a process known as "internetworking" or "internetting." By 1973, the European Informatics Network was experimentally connecting NPL in the UK and CYCLADES in France. Behind closed doors, Xerox's PARC research center was hooking up Ethernet to other local area networks that same year with its new PUP internetting protocol.
Bob Kahn at ARPA, who was funding the creation of PRNET and SATNET, had a very practical need -- to connect these military networks to each other and to the existing ARPAnet. He met up with another ARPANET alum, Vint Cerf, and in one inspired session in May of 1974 they created the first specification for ARPA's own internetting protocol -- TCP, or Transport Control Protocol.
It would be three years before they fully tested it, in a dramatic three-network international trial based from a research van in motion. It would be nearly 20 years of struggle before ARPA's protocol beat out all its rivals -- including heavyweight contenders from international standards organizations and computing giants like IBM and DEC.
By the early '90s Cerf and Kahn's protocol would emerge as the undisputed standard for internetting, or connecting computer networks to each other: the one we call "the" Internet. The Web won a separate battle to become the dominant online system for navigating information across the Internet. Together, the Web running over the Internet beat out earlier alternatives from Minitel to CompuServe, and our familiar online world took off.
On May 10tth, we celebrate 40 years since here, in the hotel Cabana in Palo Alto, Vint Cerf and Bob Kahn hammered out the rudiments of the standard that underlies today's online world, and connects over 3 billion people.
But there was a big problem: none of these networks could talk to each other!
The solution came to several researchers in that early community around the same time. What was needed was a network of networks, a process known as "internetworking" or "internetting." By 1973, the European Informatics Network was experimentally connecting NPL in the UK and CYCLADES in France. Behind closed doors, Xerox's PARC research center was hooking up Ethernet to other local area networks that same year with its new PUP internetting protocol.
Bob Kahn at ARPA, who was funding the creation of PRNET and SATNET, had a very practical need -- to connect these military networks to each other and to the existing ARPAnet. He met up with another ARPANET alum, Vint Cerf, and in one inspired session in May of 1974 they created the first specification for ARPA's own internetting protocol -- TCP, or Transport Control Protocol.
It would be three years before they fully tested it, in a dramatic three-network international trial based from a research van in motion. It would be nearly 20 years of struggle before ARPA's protocol beat out all its rivals -- including heavyweight contenders from international standards organizations and computing giants like IBM and DEC.
By the early '90s Cerf and Kahn's protocol would emerge as the undisputed standard for internetting, or connecting computer networks to each other: the one we call "the" Internet. The Web won a separate battle to become the dominant online system for navigating information across the Internet. Together, the Web running over the Internet beat out earlier alternatives from Minitel to CompuServe, and our familiar online world took off.
On May 10tth, we celebrate 40 years since here, in the hotel Cabana in Palo Alto, Vint Cerf and Bob Kahn hammered out the rudiments of the standard that underlies today's online world, and connects over 3 billion people.
Junio
El mes de Junio no fue siempre el sexto mes. En el calendario romano Junio era el cuarto. Hay varias versiones de la procedencia del nombre. La primera que debe su nombre a Junio Bruto fundador de la República Romana, la segunda que era el mes de la juventud y la tercera que tomó el nombre de la diosa Juno.
jueves, 24 de abril de 2014
lunes, 31 de marzo de 2014
Steve Jobs
"En esta era interconectada existe la tentación de creer que las ideas pueden desarrollarse a través de mensajes de correo electrónico y en el iChat. Eso es una locura. La creatividad surge en las reuniones espontáneas, en las discusiones aleatorias cara a cara. Tú te encuentras con alguien, le preguntas qué está haciendo, te sorprendes y pronto te encuentras elucubrando todo tipo de ideas”
martes, 25 de marzo de 2014
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