Three discovery of the 20th century.

In the present century has created many different kinds of advanced technology as a means of satisfying human needs. One of them in the field of communication technology is very much in interest. For example Handphone, Ipad and Laptop, this is some of the discoveries in the 20th century that will advance technology which is growing rapidly. Mobile is one of sophisticated communication tools in the 20th century. Besides functioning to make and receive phone calls, the phone is generally also has the function of sending and receiving short messages (short message service, SMS). There is also a provider of mobile telephone services in several countries that provide third generation (3G) by adding videophone services, as a means of payment, as well as to televisions online on their mobile phone. Now, mobile phone into a multifunctional gadget. Following the development of digital technology, now the phone is also equipped with a wide selection of features, such as can capture radio and television broadcasts, software audio players (MP3) and video, digital cameras, gaming, and internet services (WAP, GPRS, 3G). In addition to these features, the phone is now embedded computer features. So on the phone, people can change the functions of mobile phones into mini computers. Beside Mobile, Ipad also included discoveries in the 20th century this. By late 2009, the IPAD's release Had been rumored for years installments. The iPad was Announced on January 27, 2010, by Steve Jobs at an Apple press conference at the Yerba Buena Center for the Arts in San Francisco. Jobs said Apple later began developing the iPad before the iPhone, but temporarily shelved the effort upon its ideas Realizing That Would work just as well in a mobile phone. The IPAD was initially only available online at the Apple Store as well as the company's retail location. The iPad was launched in Australia, Canada, France, Germany, Itali, Japan, spain, united Kingdom and Switzerland on May 28. Online pre-orders in those countries began on May 10. Ipad have Connectivity, Audio and outputs, Power and Battery, Storage and SIM. And the last is a laptop, a laptop personal computer, such as using a mobile phone. Laptop integrate most of the major components of a computer desktop, including screen, keyboard, also known as a trackpad, and / or a pointing stick and speakers into one unit. A laptop is powered by the main electricity via an AC adapter, and can be used away from an outlet using a rechargeable battery. The first laptops using the flip form factor appeared in the early 1980s.