Eye

Eyes are the organs of vision. They detect light and convert it into electro-chemical impulses in neurons. In higher organisms, the eye is a complex optical system which collects light from the surrounding environment, regulates its intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through complex neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain. Eyes with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in molluscs, chordates and arthropods.

The simplest "eyes", such as those in microorganisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment and to the pretectal area to control the pupillary light reflex.

Eyes (TV series)

Eyes is an ABC television series starring Tim Daly as Harlan Judd. Eyes follows the firm of Judd Risk Management which uses marginally legal means to investigate individuals and crimes where law enforcement would fall short. With the help of high-tech gadgets, Harlan Judd and his employees recover money for victims as well as investigate individuals for clients but still manage to keep plenty of secrets from one another.

In May 2005, having rescheduled the sixth episode twice, ABC announced that they would not be airing the remaining episodes until June at the earliest. They later announced that it would not be picked up for a second season and that the remaining episodes would remain unaired.

New Zealand television station TV2 picked up this show and aired the complete series, all twelve episodes, in the second half of 2005. These episodes appeared online via BitTorrent soon after. The show was also partially aired on Singapore television station Mediacorp Channel 5, with the pilot episode and episodes #106 to #112 being skipped. Episode #111 ("Burglary") was an exception, and was aired as the fifth episode. The show was also aired in full on France cable television station Canal Jimmy in 2006. In the beginning of 2008 the show was aired in full on Polish television station TVN 7. The series was shown on the Nine Network in Australia in 2007.

Eyes (disambiguation)

Eyes are the organs of vision.

Eyes or The Eyes can also refer to:

Music

Television

Other uses

See also

Xerox

Xerox Corporation /ˈzɪərɒks/ is an American global corporation that sells business services and document technology products to businesses and governments of all sizes. Xerox is headquartered in Norwalk, Connecticut (moved from Stamford, Connecticut in October 2007), though its largest population of employees is based around Rochester, New York, the area in which the company was founded. On September 28, 2009, Xerox announced the intended acquisition of Affiliated Computer Services for $6.4 billion. The deal closed on February 8, 2010. As a large developed company, it is consistently placed in the list of Fortune 500 companies.

Researchers at Xerox and its Palo Alto Research Center invented several important elements of personal computing, such as the desktop metaphor GUI, the computer mouse and desktop computing. These features were frowned upon by the then board of directors, who ordered the Xerox engineers to share them with Apple technicians. The features were taken on by Apple and, later, Microsoft. Partly thanks to these features, these two firms would then go on to duopolize the personal computing world. Xerox also invented Ethernet.

Xerox Star

The Star workstation, officially known as the Xerox 8010 Information System, was the first commercial system to incorporate various technologies that have since become standard in personal computers, including a bitmapped display, a window-based graphical user interface, icons, folders, mouse (two-button), Ethernet networking, file servers, print servers and e-mail.

Introduced by Xerox Corporation in 1981, the name "Star" technically refers only to the software sold with the system for the office automation market. The 8010 workstations were also sold with LISP- and Smalltalk-based software, for the smaller research and software development market.

History

The Xerox Alto

The Xerox Star systems concept owes much to the Xerox Alto, an experimental workstation designed by the Xerox Palo Alto Research Center (PARC). The first Alto became operational in 1972. At first, only few Altos were built. Although by 1979 nearly 1,000 Ethernet-linked Altos were in use at Xerox and another 500 at collaborating universities and government offices, it was never intended to be a commercial product. While Xerox had started in 1977 a development project which worked to incorporate those innovations into a commercial product, their concept was an integrated document preparation system, centered around the (then expensive) laser printing technology and oriented towards large corporations and their trading partners. When that system was announced in 1981, the cost was about $75,000 ($195,000 in today's dollars) for a basic system, and $16,000 ($42,000 today) for each additional workstation.

Xerox 820

The Xerox 820 was an 8-bit desktop computer sold by Xerox in the early 1980s. The computer ran under the CP/M operating system and used floppy disk drives for mass storage. The microprocessor board was a licensed variant of the Big Board computer.

The original 820

The original Xerox 820 used a Zilog Z80 processor clocked at 2.5 MHz, and had 64 kiB of RAM.

Xerox chose CP/M for the computer because of the large software library for the operating system. Dealers reportedly were pleased to sell a computer from a well-known Fortune 500 company but the Rosen Electronics Letter unfavorably reviewed the 820 in June 1981, describing it as a disappointing, "me too" product for a leading technology company like Xerox. In November it stated that the new IBM PC was much more attractive; "we think the bulk of the sales will go to IBM".

The 820-II

Overview

The Xerox 820-II followed in 1982, featuring a Z80A processor clocked at 4.0 MHz. Pricing started at $3000.

Hardware: The processor board was located inside the CRT unit, and included the Z80A, 64 kiB of RAM and a boot ROM which enabled booting from any of the supported external drives in 8-bit mode.