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Topic: Programmable Data Processor


  
  Computer - Wikipedia, the free encyclopedia
Charles Babbage was the first to conceptualize and design a fully programmable computer as early as 1820, but due to a combination of the limits of the technology of the time, limited finance, and an inability to resist tinkering with his design, the device was never actually constructed in his lifetime.
Its job is to read instructions and data from memory or the I/O devices, decode the instructions, providing the ALU with the correct inputs according to the instructions, "tell" the ALU what operation to perform on those inputs, and send the results back to the memory or to the I/O devices.
Instead, earliest computers stored data in Williams tubes — essentially, projecting some dots on a TV screen and reading them again, or mercury delay lines where the data was stored as sound pulses traveling slowly (compared to the machine itself) along long tubes filled with mercury.
en.wikipedia.org /wiki/Computer   (4980 words)

  
 Programmable Data Processor Encyclopedia Articles @ TheEntireWeb.com (The Entire Web)   (Site not responding. Last check: 2007-09-20)
Programmed Data Processor (abbreviated PDP) was the name of a series of computers, several of them ground-breaking and very influential, made by Digital Equipment Corporation.
The name 'PDP' intentionally avoided the use of the term 'computer' because at the time of the first PDPs, computers had a reputation of being large, complicated, and expensive machines, and the venture capitalists behind Digital (esp. Georges Doriot) wouldn't support Digital attempting to build a "computer".
It is reported that Edson de Castro, who had been a key member of the design team, left to form Data General when his design for a 16-bit successor to the PDP-8 was rejected in favour of the PDP-11; the "PDP-X" essentially became the Data General Nova.
theentireweb.com /encyclopedia/Programmable_Data_Processor   (988 words)

  
 Digital Equipment Corporation   (Site not responding. Last check: 2007-09-20)
Their response was to design a single microprocessor with 64-bit RISC architecture (as opposed to the 32-bit CISC architecture used in the VAX) that could be used both in the servers, as well as a workstation line of their own.
The result was the Alpha processor, which held the performance crown into the 2000s.
PDP computers, in particular the PDP-11 model, inspired a generation of programmers and software developers.
www.freedownloadsoft.com /info/digital-equipment-corporation.html   (1867 words)

  
 Top 20 Encyclopedia
In 1961 the company was making a profit, and started construction of their first computer, the PDP-1 (PDP being an acronym for Programmable Data Processor).
The PDP-8 spawned a cousin, the PDP-12, which merged data acquistion and display capabilities developed with the NIH-sponsored LINC computers into the PDP-8 architecture.
DEC also tried to compete in the Unix market by marketing the VMS operating system as "OpenVMS" and by selling their own Unix (OSF/1, then renamed to Digital Unix, and then renamed again to Tru64), and it began to advertise more aggressively.
encyc.connectonline.com /index.php/Digital_Equipment_Corporation   (2399 words)

  
 www.news2mail.com Usenet via e-Mail
Research and production in the field of logic synthesis.
Manage data as a corporate asset: stds and methds.
Cable modems and internet access via cable tv.
www.news2mail.com /lists/groups.html   (523 words)

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