Overclocking

Overclocking is the configuration of a computer hardware component to operate at a faster rate than was certified by the original manufacturer, generally specified as a given clock frequency in Megahertz (MHz) or Gigahertz (GHz). Commonly the operating voltage of the overclocked device is also increased, which can help with maintaining the component's operational stability at the accelerated speeds. However, a given semiconductor device will generate more heat when operated at higher frequencies and voltages, so most overclocking attempts will increase power consumption and heat as well. The overclocked device may be unreliable or fail completely if the additional heat load is not removed, or if the supporting power delivery components cannot handle the increased power demands.

Overview

OC

Oc or OC may refer to:

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Oregon and California Railroad

The Oregon and California Railroad was formed from the Oregon Central Railroad when it was the first to operate a 20-mile (32 km) stretch south of Portland in 1869. This qualified the Railroad for land grants in California, whereupon the name of the railroad soon changed to Oregon & California Rail Road Company. In 1887, the line was completed over Siskiyou Summit, and the Southern Pacific Railroad assumed control of the railroad, although it was not officially sold to Southern Pacific until January 3, 1927.

Land grants and growth

As part of the U.S. government's desire to foster settlement and economic development in the western states, in July 1866, Congress passed the Oregon and California Railroad Act, which made 3,700,000 acres (1,500,000 ha) of land available for a company that built a railroad from Portland, Oregon to San Francisco, distributed by the state of Oregon in 12,800-acre (5,200 ha) land grants for each mile of track completed. Two companies, both of which named themselves the Oregon Central Railroad, began a competition to build the railroad, one on the west side of the Willamette River and one on the east side. The two lines would eventually merge and reorganize as the Oregon and California Railroad.