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Connectivity to other computers and peripherals was initially provided through serial and parallel ports. IBM provided a serial card based on an 8250 UART. The BIOS supports up to two serial ports. IBM provided two different options for connecting Centronics-compatible parallel printers. One was the IBM Printer Adapter, and the other was integrated into the MDA as the IBM Monochrome Display and Printer Adapter. The expansion capability of the IBM PC was very significant to its success in the market. Some publications highlighted IBM's uncharacteristic decision to publish complete, thorough specifications of the system bus and memory map immediately on release, with the intention of fostering a market of compatible third-party hardware and software. The motherboard includes five 62-pin card edge connectors which are connected to the CPU's I/O lines. IBM referred to these as "I/O slots," but after the expansion of the PC clone industry they became retroactively known as the ISA bus.

Additionally, Asus also produced some hybrid devices with smartphones that can be docked in a tablet screen, known as Padfone series. Most of Asus' smartphones are powered by Intel Atom processors with the exceptions of few Padfone series and some ZenFone 2 models that use Qualcomm Snapdragon, though later phones in the series now either use Qualcomm Snapdragon or Mediatek systems on-chip. Discontinued series previously offered by Asus includes the EeeBook Series, K Series, X Series, E Series, Q Series, B Series, V Series, P Series, F Series, A Series and G Series. On 24 July 2013, Asus announced a successor to the Google Nexus 7. Two days later, it was released. Asus has also been working with Microsoft in developing Windows 8 convertible tablets. In 2013, Asus revealed an Android-based tablet computer that, when attached to a keyboard, becomes a Windows 8 device, which it called the Transformer Book Trio. The keyboard can be attached to a third party monitor, creating a desktop-like experience.

Various successful implementations of the ACE design were produced. Both von Neumann's and Turing's papers described stored-program computers, but von Neumann's earlier paper achieved greater circulation and the computer architecture it outlined became known as the "von Neumann architecture". In 1945, Professor J. von Neumann, who was then working at the Moore School of Engineering in Philadelphia, where the E.N.I.A.C. The report contained a detailed proposal for the design of the machine that has since become known as the E.D.V.A.C. This machine has only recently been completed in America, but the von Neumann report inspired the construction of the E.D.S.A.C. In 1947, Burks, Goldstine and von Neumann published another report that outlined the design of another type of machine (a parallel machine this time) that would be exceedingly fast, capable perhaps of 20,000 operations per second. They pointed out that the outstanding problem in constructing such a machine was the development of suitable memory with instantaneously accessible contents.

When the color burst reference signal is turned on and the computer attached to a color display, it can display green by showing one alternating pattern of pixels, magenta with an opposite pattern of alternating pixels, and white by placing two pixels next to each other. Blue and orange are available by tweaking the pixel offset by half a pixel-width in relation to the color-burst signal. The high-resolution display offers more colors by compressing more (and narrower) pixels into each subcarrier cycle. The coarse, low-resolution graphics display mode works differently, as it can output a pattern of dots per pixel to offer more color options. These patterns are stored in the character generator ROM, and replace the text character bit patterns when the computer is switched to low-res graphics mode. The text mode and low-res graphics mode use the same memory region and the same circuitry is used for both.

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Early each morning, computers spit out maps of Los Angeles, marked with red squares where a complex algorithm has judged that property crimes are most likely to occur. As police officers patrol the streets, they keep these areas in mind, perhaps taking a detour to pass through on the way to a call, or warning people not to leave valuables in their cars. But so-called predictive policing and other ways that the Los Angeles Police Department uses data to fight crime are sounding alarm bells for civil liberty and privacy groups, who engaged in a heated debate with department brass at a Police Commission meeting Tuesday. The activists lambasted the methods, which identify crime hotspots as well as “chronic offenders” who are likely to commit crimes, as biased against blacks and Latinos, with some calling for them to be abolished. The crime statistics that fuel the computer models could be skewed by racial bias, with the result that more policing is concentrated on blacks and Latinos, many said.

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