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Acorn Online Media Set Top Box
The Acorn Online Media Set Top Box was produced by the ''Online Media'' division of Acorn Computers Ltd for the Cambridge Cable and Online Media Video on Demand trial and launched early 1996. Part of this trial involved a home-shopping system in partnership with Parcelforce. The hardware was trialled by NatWest bank, as exhibited at the 1995 '' Acorn World'' trade show. Specification STB1 The STB1 was a customised Risc PC based system, with a Wild Vision Movie Magic expansion card in a podule slot, and a network card based on Asynchronous Transfer Mode. *''Memory'': 4 MiB RAM *''Processor'': ARM 610 processor at 33 MHz; approx 28.7 MIPS *''Operating system'': RISC OS 3.50 held in 4 MiB ROM STB20 The STB20 was a new PCB based around the ARM7500 System On Chip A system on a chip or system-on-chip (SoC ; pl. ''SoCs'' ) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acorn Computers Ltd
The acorn, or oaknut, is the nut of the oaks and their close relatives (genera ''Quercus'' and ''Lithocarpus'', in the family Fagaceae). It usually contains one seed (occasionally two seeds), enclosed in a tough, leathery shell, and borne in a cup-shaped cupule. Acorns are long and on the fat side. Acorns take between 5 and 24 months (depending on the species) to mature; see the list of ''Quercus'' species for details of oak classification, in which acorn morphology and phenology are important factors. Etymology The word ''acorn'' (earlier ''akerne'', and ''acharn'') is related to the Gothic name ''akran'', which had the sense of "fruit of the unenclosed land". The word was applied to the most important forest produce, that of the oak. Chaucer spoke of "achornes of okes" in the 14th century. By degrees, popular etymology connected the word both with "corn" and "oak-horn", and the spelling changed accordingly. The current spelling (emerged 15c.-16c.), derives from ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Risc PC
The Risc PC is Acorn Computers's RISC OS/ Acorn RISC Machine computer, launched on 15 April 1994, which superseded the Acorn Archimedes. The Acorn PC card and software allows PC compatible software to be run. Like the Archimedes, the Risc PC continues the practice of having the RISC OS operating system in a ROM module. Risc PC augments the ROM-based core OS with a disk-based directory structure containing configuration information, and some applications which had previously been kept in ROM. At the 1996 BETT Educational Computing & Technology Awards, the machine was awarded Gold in the hardware category. Technical specifications Use The Risc PC was used by music composers and scorewriters to run the Sibelius scorewriting software. Between 1994 and 2008, the Risc PC and A7000+ were used in television for broadcast automation, programmed by the UK company OmniBus Systems: once considered "the world leader in television station automation" and at one point auto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acorn Computers
Acorn Computers Ltd. was a British computer company established in Cambridge, England, in 1978. The company produced a number of computers which were especially popular in the United Kingdom, UK, including the Acorn Electron and the Acorn Archimedes. Acorn's computer dominated the UK educational computer market during the 1980s. Though the company was acquired and largely dismantled in early 1999, with various activities being dispersed amongst new and established companies, its legacy includes the development of reduced instruction set computing (RISC) personal computers. One of its operating systems, , continues to be developed by RISC OS Open. Some activities established by Acorn lived on: technology developed by Arm (company), Arm, created by Acorn as a joint venture with Apple, Inc., Apple and VLSI Technology, VLSI in 1990, is dominant in the mobile phone and personal digital assistant (PDA) microprocessor market. Acorn is sometimes referred to as the "British Apple" and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARM System–on–Chip Architecture
''ARM System-on-Chip Architecture'' is a book detailing the system on a chip ARM architecture, as a specific implementation of reduced instruction set computing. It was written by Steve Furber, who co-designed the ARM processor with Sophie Wilson. The book's content covers the architecture, assembly language programming, support mechanisms for high-level programming languages, the instruction set and the building of operating systems. The Thumb The thumb is the first digit of the hand, next to the index finger. When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit. The Medical Latin English noun for thumb ... instruction set is also covered in detail. It has been cited in numerous academic papers, and has been recommended to those working in the development of embedded systems. References 2000 non-fiction books ARM architecture Computer books Handbooks and manuals System on a chip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARM7500
ARM7 is a group of 32-bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use. The ARM7 core family consists of ARM700, ARM710, ARM7DI, ARM710a, ARM720T, ARM740T, ARM710T, ARM7TDMI, ARM7TDMI-S, ARM7EJ-S. The ARM7TDMI and ARM7TDMI-S were the most popular cores of the family. Since ARM7 cores were released from 1993 to 2001, they are no longer recommended for new IC designs; instead ARM Cortex-M or ARM Cortex-R cores are preferred. Overview This generation introduced the Thumb 16-bit instruction set providing improved code density compared to previous designs. The most widely used ARM7 designs implement the ARMv4T architecture, but some implement ARMv3 or ARMv5TEJ. ARM7TDMI has 37 registers (31 GPR and 6 SPR). All these designs use a Von Neumann architecture, thus the few versions containing a cache do not separate data and instruction caches. Some ARM7 cores are obsolete. One historically significant model, the ARM7DI"ARM7DI Data Sheet"; Documen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
System On Chip
A system on a chip or system-on-chip (SoC ; pl. ''SoCs'' ) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include a central processing unit (CPU), memory interfaces, on-chip input/output devices, input/output interfaces, and secondary storage interfaces, often alongside other components such as radio modems and a graphics processing unit (GPU) – all on a single substrate or microchip. It may contain digital, analog, mixed-signal, and often radio frequency signal processing functions (otherwise it is considered only an application processor). Higher-performance SoCs are often paired with dedicated and physically separate memory and secondary storage (such as LPDDR and eUFS or eMMC, respectively) chips, that may be layered on top of the SoC in what's known as a package on package (PoP) configuration, or be placed close to the SoC. Additionally, SoCs may use separate wireless modems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RISC OS
RISC OS is a computer operating system originally designed by Acorn Computers Ltd in Cambridge, England. First released in 1987, it was designed to run on the ARM chipset, which Acorn had designed concurrently for use in its new line of Archimedes personal computers. RISC OS takes its name from the reduced instruction set computer (RISC) architecture it supports. Between 1987 and 1998, RISC OS was included in every ARM-based Acorn computer model, including the Acorn Archimedes line, Acorn's R line (with RISC iX as a dual-boot option), RiscPC, A7000, and prototype models such as the Acorn NewsPad and Phoebe computer. A version of the OS, named NCOS, was used in Oracle Corporation's Network Computer and compatible systems. After the break-up of Acorn in 1998, development of the OS was forked and continued separately by several companies, including , Pace Micro Technology, and Castle Technology. Since then, it has been bundled with several ARM-based desktop computers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asynchronous Transfer Mode
Asynchronous Transfer Mode (ATM) is a telecommunications standard defined by American National Standards Institute (ANSI) and ITU-T (formerly CCITT) for digital transmission of multiple types of traffic. ATM was developed to meet the needs of the Broadband Integrated Services Digital Network as defined in the late 1980s, and designed to integrate telecommunication networks. It can handle both traditional high-throughput data traffic and real-time, low-latency content such as telephony (voice) and video.ATM Forum, The User Network Interface (UNI), v. 3.1, , Prentice Hall PTR, 1995, page 2. ATM provides functionality that uses features of circuit switching and packet switching networks by using asynchronous time-division multiplexing.McDysan (1999), p. 287. In the OSI reference model data link layer (layer 2), the basic transfer units are called ''frames''. In ATM these frames are of a fixed length (53 octets) called ''cells''. This differs from approaches such as Inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acorn User
''Acorn User'' magazine was founded by Acorn Computers in 1982, contract-published by Addison-Wesley, to coincide with the launch of the BBC Micro. It covered the range of Acorn home computers, the BBC Micro and Atom at first and later the Electron, Archimedes and Risc PC. History The first issue was dated July/August 1982. From the April 1984 issue, the magazine came under the control of Redwood Publishing, a company recently founded by Michael Potter (a former publisher at Haymarket Publishing), Christopher Ward (a former editor of the ''Daily Express'' and a non-executive director of Acorn) and Chris Curry (one of the founders of Acorn). In 1989, the name changed to ''BBC Acorn User'', reflecting the fact that the commercial arm of the BBC, BBC Enterprises, took control of Redwood to expand its publishing activities. The magazine lost the BBC branding when it was sold to Europress, publisher of rival title ''Acorn Computing'', coinciding with its January 1994 issue. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge Cable
Cambridge Cable Ltd. was a limited company engaged in the provision of early video on demand. It provided cable infrastructure in the UK as part of the Cambridge Digital Interactive Television Trial (Cambridge iTV trial/Cambridge Cable Project). History It was founded in 1988 by three Cambridge businessmen as a cable television and communications company. In June 1989, the company was awarded the cable television franchise for the city of Cambridge and the surrounding area, and in July 1990 was granted licence by the DTI to operate a public telecommunications service and distribute television channels via its underground cable network. Cambridge Cable's inaugural service commenced in July 1991 with a cable television service; the company's public telephone service launched in September 1992. The company gained financial and operational backing from Comcast Corporation, a major cable television network operator in the United States, and Singapore Telecom, the public tel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trade Show
A trade fair, also known as trade show, trade exhibition, or trade exposition, is an exhibition organized so that companies in a specific industry can showcase and demonstrate their latest products and services, meet with industry partners and customers, study activities of rivals, and examine recent market trends and opportunities. In contrast to consumer fairs, only some trade fairs are open to the public, while others can only be attended by company representatives (members of the trade, e.g. professionals) and members of the press, therefore trade shows are classified as either "public" or "trade only". A few fairs are hybrids of the two; one example is the Frankfurt Book Fair, which is trade only for its first three days and open to the general public on its final two days. They are held on a continuing basis in virtually all markets and normally attract companies from around the globe. For example, in the U.S., there are currently over 10,000 trade shows held every ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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