Century IT blog

USB 1.0 vs USB 2.0

September 14th, 2009

Most computers or laptops nowadays usually have a selection of USB ports that you can plug external devices into to extend the functionality of your computer system i.e. external hard disks, external tape drives, digital cameras, memory card readers, USB memory sticks etc.


Modern computers and laptops usually come with USB 2.0 ports as standard, whilst older computers only have USB 1.0Computer Support, Network Support, Server Support


As with all technology, advances have been made over the years to improve speed and performance. To maintain backward compatibility, newer types of USB ports come with the same type of connector as the older USB ports, so older USB devices can still connect and operate.



The main difference between USB 1.0 and USB 2.0 is the performance or throughput; the USB 2.0 ports are much faster than the earlier USB 1.0. USB 2.0 has an maximum throughput of around 480 mps (megabits per second) whilst USB 1.0 only has an average throughput of 12 mbps. That makes USB 2.0 as much as 40 times as quick as the older USB 1.0


This means that if it takes around 40 minutes to transfer some files to a USB 1.0 device, using USB 2.0 it could potentially take only 1 minute.


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