2011 both Mr Woodland

2011 both Mr Woodland

Welcome to a laptop battery specialist of the IBM Laptop Battery

He was a graduate student when he teamed up with classmate Bernard Silver to create the thick-and-thin line system in the 1940s.

Mr Woodland is said to have come up with the Morse code-inspired idea while sitting on a chair surrounded by sand.

He told Smithsonian magazine in 1999: "I poked my four fingers into the sand and for whatever reason - I didn't know - I pulled my hand toward me and drew four lines.

The idea was patented in the US 60 years ago and sold to battery storage company Philco for $15,000 (£9,300), a figure that today would be worth $130,000 (£80,000).

When the patent expired in the 1960s IBM with battery such as IBM ThinkPad T40 Battery, IBM ThinkPad T43 Battery, IBM ThinkPad R50 Battery, IBM ThinkPad R51 Battery, IBM FRU 08K8193 Battery, IBM 92P1060 Battery, IBM 08K8214 Battery, IBM 08K8195 Battery, IBM 08K8193 Battery, IBM 08K8192 Battery, IBM 92P1101 Battery, Lenovo IdeaPad Y450 Battery- where Mr Woodland was working - tweaked the design into the one we recognise today.

The first item scanned was a packet of chewing gum in an Ohio supermarket in 1974.

Known as the universal product code (UPC), it is now printed on millions of devices around the world and scanned billions of times every day.

Mr Woodland's family said he died on Sunday at his home in Edgewater, New Jersey.

In 2011 both Mr Woodland and Mr Silver were inducted into the US National Inventors Hall of Fame.

California is located in the west coast of the United States of America. It has a population of 37,691,912 as of 2011. The state covers a total area of 423,970 km2 and is the third largest state in the USA.

The economic growth of this state is the fastest in the USA. In 2010, the gross state product was $1.9 trillion, the highest in the USA. California has a large enough economy to rank among the biggest countries in the world, as well as being the biggest state economy in the USA. In 2011, California's economy was the eighth largest economy in the world.

California's economy relies heavily on trade and financial service industries. High technology industries such as computing, electronic devices and software are a key strength in the region. California has a highly active environmental movement, which has given rise to demand for research and manufacturing in renewable energy technology and greener products.