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Sealed Set System
In Australia, in 1924 Ernest Fisk (later Sir Ernest) of AWA - Amalgamated Wireless (Australasia) suggested the introduction of a sealed set system (also known as a sealed receiver) where radio sets could only receive the transmitting service (or services) to which they were licensed. Under this model, the Government would issue a licence to transmit on a given wavelength (or frequency in modern terminology) and oversee the manufacture of receivers locked on that wavelength. The owner of the transmitting licence could then charge the receiver's owner a recurrent fee that would be used to run the station. This was seen as preferable to the British situation where the Government backed a monopolistic service (the British Broadcasting Company as it was then) and collected a single licence fee from each household with a receiver. There appears to have been little attention at the time to a third possible model; that of the licensee charging for advertisements, as was done in the United St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Fisk
Sir Ernest Thomas Fisk (8 August 18868 July 1965) was an English Australian businessman and entrepreneur who was the founder (1913) and later managing director (1916) and chairman (1932) of Amalgamated Wireless (Australasia) (AWA). In 1944 was appointed managing director of the EMI music empire. On 22 September 1918 he proved the possibility of direct radio communication from the UK to Australia by receiving the first such message at his Sydney home, "Lucania". A memorial was erected on 14 December 1935 to celebrate the achievement. Throughout his career he held many key positions in the electronics industry. In the 1950s he predicted that color televisions would be in world-wide use within 30 years, and solar power would be used to cool and heat houses. Fiskville, Victoria, about 10 kilometres south of Ballan, is named after him. From 1927 to 1969 it was the location of the shortwave wireless transmitting complex operated by AWA as part of the Imperial Wireless Chain. Honours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USB Port
Universal Serial Bus (USB) is an industry standard that establishes specifications for cables, connectors and protocols for connection, communication and power supply (interfacing) between computers, peripherals and other computers. A broad variety of USB hardware exists, including 14 different connector types, of which USB-C is the most recent and the only one not currently deprecated. First released in 1996, the USB standards are maintained by the USB Implementers Forum (USB-IF). The four generations of USB are: USB 1.''x'', USB 2.0, USB 3.''x'', and USB4. Overview USB was designed to standardize the connection of peripherals to personal computers, both to communicate with and to supply electric power. It has largely replaced interfaces such as serial ports and parallel ports, and has become commonplace on a wide range of devices. Examples of peripherals that are connected via USB include computer keyboards and mice, video cameras, printers, portable media players, mob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serial Copy Management System
The Serial Copy Management System (SCMS) is a copy protection scheme that was created in response to the digital audio tape (DAT) invention, in order to prevent DAT recorders from making second-generation or serial copies. SCMS sets a "copy" bit in all copies, which prevents anyone from making further copies of those first copies. It does not, however, limit the number of first-generation copies made from a master. SCMS was also included in consumer CD-R, MiniDisc and Digital Compact Cassette (DCC) players and recorders. With the demise of these formats, SCMS is not in widespread use. However, the concept of SCMS was resurrected in the broadcast flag, a measure formerly mandated by the Federal Communications Commission (FCC) to limit the copying of digital TV signals. SCMS flags are also included in the MP3 specifications, though no known decoder or player honors them. Personal Computers were not required to include SCMS in the US. History SCMS was created as a compromise betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Next-Generation Secure Computing Base
The Next-Generation Secure Computing Base (NGSCB; codenamed Palladium and also known as Trusted Windows') is a software architecture designed by Microsoft which aimed to provide users of the Windows operating system with better privacy, security, and system integrity. NGSCB was the result of years of research and development within Microsoft to create a secure computing solution that equaled the security of closed platforms such as set-top boxes while simultaneously preserving the backward compatibility, flexibility, and openness of the Windows operating system. Microsoft's primary stated objective with NGSCB was to "protect software from software." Part of the Trustworthy Computing initiative when unveiled in 2002, NGSCB was to be integrated with Windows Vista, then known as "Longhorn." NGSCB relied on hardware designed by the Trusted Computing Group to produce a parallel operation environment hosted by a new hypervisor (referred to as a sort of kernel in documentation) called th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trusted Execution Technology
Intel Trusted Execution Technology (Intel TXT, formerly known as LaGrande Technology) is a computer hardware technology whose primary goals are: * Attestation of the authenticity of a platform and its operating system. * Assuring that an authentic operating system starts in a trusted environment, which can then be considered trusted. * Provision of a trusted operating system with additional security capabilities not available to an unproven one. Intel TXT uses a Trusted Platform Module (TPM) and cryptographic techniques to provide measurements of software and platform components so that system software as well as local and remote management applications may use those measurements to make trust decisions. It complements Intel Management Engine. This technology is based on an industry initiative by the Trusted Computing Group (TCG) to promote safer computing. It defends against software-based attacks aimed at stealing sensitive information by corrupting system or BIOS code, or mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave File
Waveform Audio File Format (WAVE, or WAV due to its filename extension; pronounced "wave") is an audio file format standard, developed by IBM and Microsoft, for storing an audio bitstream on PCs. It is the main format used on Microsoft Windows systems for uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format. WAV is an application of the Resource Interchange File Format (RIFF) bitstream format method for storing data in ''chunks'', and thus is similar to the 8SVX and the AIFF format used on Amiga and Macintosh computers, respectively. Description The WAV file is an instance of a Resource Interchange File Format (RIFF) defined by IBM and Microsoft. The RIFF format acts as a "wrapper" for various audio coding formats. Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse-code modulation (LPCM) format. LPCM is also the standard audio coding format for audio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATRAC
Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial product to incorporate ATRAC in 1992. ATRAC allowed a relatively small disc like MiniDisc to have the same running time as CD while storing audio information with minimal loss in perceptible quality. Improvements to the codec in the form of ATRAC3, ATRAC3plus, and ATRAC Advanced Lossless followed in 1999, 2002, and 2006 respectively. Files in ATRAC3 format originally have the extension, however in most cases the files would be stored in an OpenMG Audio container using the extension . Initially files that were encrypted with OpenMG had the extension, before it was replaced by starting in SonicStage v2.1. Encryption is no longer compulsory as of v3.2. Other MiniDisc manufacturers such as Sharp and Panasonic also implemented their own versions of the ATRAC codec. History ATRAC was developed for Sony's MiniDisc format. ATRAC was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonic Stage
SonicStage is a discontinued software product from Sony that is used for managing portable devices when they are plugged into a computer running Microsoft Windows. It comprises a music player and library manager, similar to iTunes, Windows Media Player and RealPlayer. It is used to manage the library of ATRAC (.omg and .oma) and MP3 recordings on a PC. SonicStage was required to transfer and manage music on all Network Walkman, NetMD and Hi-MD players, and the Clie handheld, before the product was dropped entirely outside of Japan in 2007. History SonicStage was first used in Vaio PCs put on the Japanese market in October 2001, and superseded OpenMG Jukebox. Version 2 was found on 2004 model products, and Version 3 on 2005 model products (Sony introduced native MP3 support on its music players in 2005). The Sony Connect service was used to purchase recordings online, and could be accessed from within the SonicStage program. However, Sony announced that on 31 March 2008, its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NET MD
Net or net may refer to: Mathematics and physics * Net (mathematics), a filter-like topological generalization of a sequence * Net, a linear system of divisors of dimension 2 * Net (polyhedron), an arrangement of polygons that can be folded up to form a polyhedron * An incidence structure consisting of points and parallel classes of lines * Operator algebras in Local quantum field theory Others * Net (command), an operating system command * Net (device), a grid-like device or object such as that used in fishing or sports, commonly made from woven fibers * ''Net'' (film), 2021 Indian thriller drama film * Net (textile), a textile in which the warp and weft yarns are looped or knotted at their intersections * Net (economics) (nett), the sum or difference of two or more economic variables ** Net income (nett), an entity's income minus cost of goods sold, expenses and taxes for an accounting period * In electronic design, a connection in a netlist * In computing, the Internet * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firewall (computing)
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet. History The term ''firewall'' originally referred to a wall intended to confine a fire within a line of adjacent buildings. Later uses refer to similar structures, such as the metal sheet separating the engine compartment of a vehicle or aircraft from the passenger compartment. The term was applied in the late 1980s to network technology that emerged when the Internet was fairly new in terms of its global use and connectivity. The predecessors to firewalls for network security were routers used in the late 1980s. Because they already segregated networks, routers could apply filtering to packets crossing them. Before it was used in real-life computing, the term appeared in the 1983 computer-hacking movie ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minidisc
MiniDisc (MD) is an erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, and later, 80 minutes of digitized audio. Sony announced the MiniDisc in September 1992 and released it in November of that year for sale in Japan and in December in Europe, North America, and other countries. The music format was based on ATRAC audio data compression, Sony's own proprietary compression code. Its successor, Hi-MD, would later introduce the option of linear PCM digital recording to meet audio quality comparable to that of a compact disc. MiniDiscs were very popular in Japan and found moderate success in Europe; although it was designed to be the successor of the cassette tape, it did not manage to mass replace it globally. By March 2011 Sony had sold 22 million MD players. Sony has ceased development of MD devices, with the last of the players sold by March 2013. Market history In 1983, just a year after the introduction of the Compact Disc, Kees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amalgamated Wireless (Australasia)
AWA Technology Services, name based on former name Amalgamated Wireless (Australasia) Ltd, is an Australian provider for technology related services. Throughout most of the 20th century AWA was Australia's largest and most prominent electronics organisation, undertaking development, manufacture and distribution of radio, telecommunications, television and audio equipment as well as broadcasting services. After the sell-off of most of its assets and operating divisions, AWA is now primarily an information and communications technology (ICT) services company. History Pre-World War II The company commenced operations in 1909 as Australasian Wireless Limited (AWL), a Telefunken wireless agent. The first chairman was Hugh Denison. Ernest Fisk, a foundation director, was general and technical manager. In 1916 he became managing director and in 1932 chairman. The Marconi Company sued the Australian government in 1912, for infringing their patent (and AWL issued writs against firms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
