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Movements, leaders, victories and the continuing fight for equality.
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Movements, leaders, victories and the continuing fight for equality.
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Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In August 1908, a white mob attacked Springfield, Illinois’s Black community, destroying homes and businesses and lynching two Black men. National outrage over the violence helped spur the movement that created the NAACP the following year.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
Lenslok is a copy protection mechanism found in some computer games and other software on the Atari 8-bit computers, Commodore 64, ZX Spectrum, Sinclair QL, MSX and Amstrad CPC. It was created by John Frost, an inventor and electronics consultant, and marketed by ASAP Developments, a subsidiary of J Rothschild Holdings.[1] The first game to use it was Elite for the ZX Spectrum.[2][3][4]
Lenslok was released in 1985 as a plastic lens in a foldaway frame.[3] The Lenslok device was essentially a row of prisms arranged vertically in a plastic holder. Before the game started, a two-letter code was displayed on the screen, but it was corrupted by being split into vertical bands which were then rearranged on screen. By viewing these bands through the Lenslok they were restored to their correct order and the code could be read and entered allowing access to the game.[4] The device was small enough when folded flat to fit next to an audio cassette in a standard case.
In order for the Lenslok to work correctly the displayed image has to be the correct size. This meant that before each use the software needed to be calibrated to take account of the size of the display. Users found this setup particularly annoying, at least in part because they found the instructions that were initially shipped unclear.[2] Additionally, the device could not be calibrated at all for very large and very small televisions,[5][3] and some games shipped with mismatched Lensloks that prevented the code from being correctly descrambled.[2] The Lenslok system was not used in later releases of Elite.
Lenslok was used on the following releases:
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Lenslok is a copy protection mechanism found in some computer games and other software on the Atari 8-bit computers, Commodore 64, ZX Spectrum, Sinclair QL, MSX and Amstrad CPC. It was created by John Frost, an inventor and electronics consultant, and marketed by ASAP Developments, a subsidiary of J Rothschild Holdings. The first game to use it was Elite for the ZX Spectrum.
Copy protection, also known as content protection, copy prevention and copy restriction, is any measure to enforce copyright by preventing the reproduction of software, films, music, and other media. Copy protection is most commonly found on videotapes, DVDs, Blu-ray discs, HD-DVDs, computer software discs, video game discs and cartridges, audio CDs and some VCDs. It also may be incorporated into digitally distributed versions of media and software. Some methods of copy protection have also led to criticism because it caused inconvenience for paying consumers or secretly installed additional or unwanted software to detect copying activities on the consumer's computer.
Video game piracy is the unauthorized copying and distributing of video game software, and is a form of copyright infringement. It is often cited as a major problem that video game publishers face when distributing their products, due to the ease of being able to distribute paid games for free, via torrenting or websites offering direct download links. Right holders generally attempt to counter piracy of their products by enforcing the Digital Millennium Copyright Act, though this has never been totally successful. Digital distribution of pirated games has historically occurred on bulletin board systems (BBS), and more recently via decentralized peer-to-peer torrenting. In terms of physical distribution, China, Indonesia, and Vietnam are known for major manufacturing and distribution centers for pirated game copies, while Hong Kong and Singapore are major importers.
The ZX Spectrum's software library was very diverse. While the majority of the software produced for the system was video games, others included programming language implementations, Sinclair BASIC extensions, databases, word processors, spread sheets, drawing and painting tools, and 3D modelling tools.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.
