What is “Windows 10″ ?

October 28, 2014

Windows 10 – An upcoming release of the Microsoft Windows operating system. Unveiled on September 30, 2014, it will be released in late 2015. First teased in April 2014 at the Build Conference, Windows 10 aims to address shortcomings in the user interface first introduced by Windows 8 by adding additional mechanics designed to improve the user experience for non-touchscreen devices (such as desktop computers and laptops), including a revival of the Start menu seen in Windows 7, a virtual desktop system, and the ability to run Windows Store apps within windows on the desktop rather than a full-screen mode.

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Source: Wikipedia


What does “ISO” mean ?

October 21, 2014

ISO – An ISO image is an archive file of an optical disc, a type of disk image composed of the data contents of every written sector  of an optical disc, including the optical disc file system.  ISO image files usually have a file extension of .iso. The name ISO is taken from the ISO 9660  file system used with CD-ROM media, but what is known as an ISO image might also contain a UDF (ISO/IEC 13346) file system (commonly used by DVDs  and Blu-ray Discs).

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Source: Wikipedia


What does “Chipset” mean ?

October 14, 2014

Chipset – In a computer system, a chipset is a set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found on the motherboard. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.

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Source: Wikipedia


What does “Letterboxing” mean ?

October 7, 2014

Letterboxing – The practice of transferring film shot in a widescreen aspect ratio to standard-width video formats while preserving the film’s original aspect ratio. The resulting videographic image has mattes (black bars) above and below it; these mattes are part of the image (i.e., of each frame of the video signal). LTBX is the identifying abbreviation for films and images so formatted. The term refers to the shape of a letter box, a slot in a wall or door through which mail is delivered, being rectangular and wider than it is high.

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Source: Wikipedia


What does “Anamorphic” mean ?

September 30, 2014

Anamorphic Widescreen – A process by which a widescreen image is compressed horizontally to fit into a storage medium with a narrower aspect ratio. Compatible playback equipment can then re-expand the horizontal dimension to show the original widescreen image. This is typically used to allow one to store widescreen images on a medium that was original intended for a narrower ratio, while using as much of the frame – and therefore recording as much detail – as possible.

The technique originally comes from cinema. A film would be framed and recorded as widescreen, but the picture would be “squashed together” using a specially crafted concave lens to fit into non-widescreen 1.37:1 aspect ratio film. This film can then be printed and manipulated like any other 1.37:1 film stock, although the images on it will appear to be squashed horizontally (elongated vertically) as in a fun house mirror. An anamorphic lens on the projector in the cinema (a convex lens) corrects the picture by performing exactly the opposite distortion, returning it to its original width and its widescreen aspect ratio.

The anamorphic lens on the projector is a specially crafted convex lens that corrects the picture so that the images on the screen look normal. The optical scaling of the lens to a film medium is considered more desirable than the digital counterpart, due to the amount of non-proportional pixel decimated scaling that is applied to the width of an image to achieve (somewhat a misnomer) a so-called “rectangular” pixel widescreen image. The legacy ITU Rec. 601 4:3 image size is used for its compatibility with the original video bandwidth that was available for professional video devices that used fixed clock rates of a SMPTE 259M serial digital interface. One would produce a higher quality upscaled 16:9 widescreen image by using either a 1:1 SD progressive frame size of 640×360 or for ITU Rec. 601 and SMPTE 259M compatibility a letterboxed frame size of 480i or 576i.

Similar operations are performed electronically to allow widescreen material to be stored on formats or broadcast on systems that assume a non-widescreen aspect ratio.

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Source: Wikipedia


What does “UNIX” mean ?

September 23, 2014

Unix – A multitasking, multiuser computer operating system that exists in many variants. The original Unix was developed at AT&T’s Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. From the power user’s or programmer’s perspective, Unix systems are characterized by a modular design that is sometimes called the “Unix philosophy,” meaning the OS provides a set of simple tools that each perform a limited, well-defined function, with a unified filesystem as the main means of communication and a shell scripting and command language to combine the tools to perform complex workflows.

The C programming language was designed by Dennis Ritchie as a systems programming language for Unix, allowing for portability beyond the initial PDP-11 development platform and the use of Unix on a plethora of computing platforms.

During the late 1970s and 1980s, Unix developed into a standard operating system for academia. AT&T tried to commercialize it by licensing the OS to third-party vendors, leading to a variety of both academic (e.g., BSD) and commercial variants of Unix (such as Xenix) and eventually to the “Unix wars” between groups of vendors. AT&T finally sold its rights in Unix to Novell in the early 1990s.

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Source: Wikipedia


What does “RFID” mean ?

September 16, 2014

Radio-Frequency Identification – (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information. Some tags are powered by and read at short ranges (a few meters) via magnetic fields (electromagnetic induction). Others use a local power source such as a battery, or else have no battery but collect energy from the interrogating EM field, and then act as a passive transponder to emit microwaves or UHF radio waves (i.e., electromagnetic radiation at high frequencies). Battery powered tags may operate at hundreds of meters. Unlike a barcode, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object.

Radio frequency identification (RFID) is part of the family of Automatic Identification and Data Capture (AIDC) technologies that includes 1D and 2D bar codes. RFID uses an electronic chip, usually applied to a substrate to form a label, that is affixed to a product, case, pallet or other package. The information it contains may be read, recorded, or rewritten.

RFID tags are used in many industries. An RFID tag attached to an automobile during production can be used to track its progress through the assembly line. Pharmaceuticals can be tracked through warehouses. Livestock and pets may have tags injected, allowing positive identification of the animal. Since RFID tags can be attached to cash, clothing, everyday possessions, or even implanted within people, the possibility of reading personally-linked information without consent has raised serious privacy concerns.

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Source: Wikipedia


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