Kamis, 05 Februari 2015

Google PLans Driverless Car

Google PLans Driverless Car
In 2009 Google announced plans to develop a driverless car, a vehicle that can drive all by itself. Five years later the Internet company has tested the car for hundreds of thousands of miles. In the near future Google plans to build 100 such fully automated cars for testing purposes. The driverless car will use Google’s own software to drive around. Currently only a few states, including Nevada and Florida, allow the driving of such cars in public. Google's new car does not have a steering wheel or brakes but just two stop and go buttons. It can drive at a maximum speed of 25 miles an hour. The prototype has a series of expensive high-tech equipment, including radar systems, GPS location finders, precise maps and several sensors. Up to now, the vehicle has been tested mainly on Californian roads. It has crossed the Golden Gate Bridge and driven up San Francisco’s famous Lombard Street with 180° curves. The system does not allow humans to take control but they can stop the car whenever they want to. Google claims that a driverless car would be an important step for road safety. They could take over driving on roads, just like autopilots take control of airplanes, while the pilot often has nothing to do but just sit and wait for landing. There would be fewer car accidents and road fatalities. Several European countries have also started to test cars without drivers. Prototypes of such cars are on roads in Germany, the Netherlands and Spain. According to Google, mass production of the car is still a far way ahead. With almost $100 000 dollars’ worth of high-tech equipment the company estimates that customers won’t be able to buy one in this decade. Baca selengkapnya INTERNET AND TEKNOLOGI

Rabu, 04 Februari 2015

USB - How Connecting Electronic Devices Works

USB - How Connecting Electronic Devices  Works
In the later part of the 1990s the Universal Serial Bus (USB) was invented as a system of exchanging data from one storage place to another at a relatively fast speed. Today about 10 billion USB devices are in use, a figure that even stuns its inventor Ajay Bhatt from Intel. USB has become a common name everywhere, from schools and offices to hospitals. Ajay Bhatt was annoyed by the different types of connections that a PC had and looked for a simpler way of linking different parts of a computer. He tried to set up a uniform connection system for all PC parts and other devices. Although it was difficult for Bhatt to convince computer makers that he had a good idea, he finally got the approval to change a computer's extension system completely. USB has many advantages. For one, a single port can control up to 128 devices at once. They are powered by themselves and you do not have to switch off a device to make USB work. A USB object installs itself. Just plug it in and the computer automatically downloads the software you need to make it work. When the first USB devices hit the markets in the late 1990s they were an immediate success. In later versions the transfer speed of USB devices was drastically improved. Today's USB 3.0 standard is over 400 times faster than its original USB 1. All over the world millions of USB devices and adapters are being sold every day. The Intel engineer is proud of having created a standard that the computer industry has accepted and that will be here for a while to come. Today’s PCs and laptops have at least 3-4 USB ports. USB connectors can be found everywhere, on printers, digital cameras, mobile phones and tablets.