USB 2.x
Hi fellows of Cyberspace, today I want to talk about USB 2.x and several of its improvements, let's start off
Well it has only been 6 years since the introduction of USB 1.x and we get USB 2.0 it was released in April 2000, which is already another level. It has a speed of 480 Mbit / s which is called High Speed or High Bandwidth.
The qualities and utilities of USB 2.0 will always be improved and will find new options for it for the next 10 years, we will not stop having surprises, detail some of the most important for me.
In October of 2000, it seems the mini ports A and B, this also introduced the terminal for On-The-Go. That accepted both terminals.
In May of 2002, appear what for me is a good advance for this type of connection Pull-up / Pull-down ECN.
In May of 2003 we have ECN Interfaces that greatly improve communication between terminals, as it added a new standardized descriptor that allowed multiple interfaces to single device function.
In October 2003, we have Rounded Chamfer ECN, which was nothing more than making retroactive changes to the Mini-B connectors which results in much longer lasting connectors.
In March 2006, sees the Inter-Chip USB Supplement something that was very useful for mobile technology.
In December of 2006, we said goodbye to the host for USB, thanks to the supplement On-The-Go 1.3
Nevertheless, it was in April 2007 that introduced battery charging technology 1.1 that allowed a USB host that can act as chargers
In addition, this April brought us the cables and connectors Micro USB 1.01
In July of the same year, we saw as the dream came to USB ports. Devices in this state did not reduce power consumption. However, switching between enabled and idle states is much faster than switching between enabled and suspended states, allowing devices to sleep while idle.
