Silicon Valley

Silicon Valley is a nickname for the southern portion of the San Francisco Bay Area, which is located in part of the U.S. state of California known as Northern California. It is home to many of the world's largest high-tech corporations, as well as thousands of startup companies. Geographically, it encompasses all of the Santa Clara Valley, the southern half of the San Francisco Peninsula, and southern portions of the East Bay. It includes parts or most of Santa Clara County, San Mateo County, and Alameda County.

The word "valley" refers to the Santa Clara Valley, where the region has traditionally been centered, which includes the city of San Jose and surrounding cities and towns. The word "silicon" originally referred to the large number of silicon chip innovators and manufacturers in the region. The term "Silicon Valley" eventually came to refer to all high tech businesses in the area, and is now generally used as a synecdoche for the American high-technology economic sector. It also became a global synonym for leading high-tech research and enterprises, and thus inspired similar named locations, as well as research parks and technology centers with a comparable structure all around the world.

Valley

A valley is a low area between hills, often with a river running through it.

In geology, a valley or dale is a depression that is longer than it is wide. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, (at least) with respect to the cross section of the slopes or hillsides.

Valley terminology

A valley in its broadest geographic sense is also known as a dale. A valley through which a river runs may also be referred to as a vale. A small, secluded, and often wooded valley is known as a dell or in Scotland as a glen. A wide, flat valley through which a river runs is known in Scotland as a strath. A mountain cove is a small valley, closed at one or both ends, in the central or southern Appalachian Mountains which sometimes results from the erosion of a geologic window. A small valley surrounded by mountains or ridges is sometimes known as a hollow. A deep, narrow valley is known as a cwm (also spelled combe or coombe). Similar geological structures, such as canyons, ravines, gorges, gullies, and kloofs, are not usually referred to as valleys. See also: "chine". A valley formed by erosion is called an erosional valley; a valley formed by geologic events such as drop faults or the rise of highlands is called a structural valley.

HBO

HBO (Home Box Office) is an American premium cable and satellite television network that is owned by Home Box Office Inc., the cable flagship division of Time Warner. HBO's programming consists primarily of theatrically released motion pictures and original television series, along with made-for-cable movies and documentaries, boxing matches and occasional stand-up comedy and concert specials.

It is the oldest and longest continuously operating pay television service (basic or premium) in the United States, having been in operation since November 8, 1972. In 2014, HBO had an adjusted operating income of US$1.79 billion, compared to the US$1.68 billion it accrued in 2013.

Overview

As of July 2015, HBO's programming is available to approximately 36,483,000 households with at least one television set (31.3% of all cable, satellite and telco customers) in the United States (36,013,000 subscribers or 30.9% of all households with pay television service receive at least HBO's primary channel), making it the second largest premium channel in the United States (Encore's programming reaches 40.54 million pay television households as of July 2015). In addition to its U.S. subscriber base, HBO broadcasts in at least 151 countries, covering approximately 122 million subscribers worldwide.