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PCB DESIGNING
[edit]History
CID is founded by Professor T R Ariyaratne in 2000, with the financial support from the International Science Programs, Uppsala University, Sweden , and Prof. D U J Sonnadara, Dr. M K Jayananda, Dr. R Lelwala were the first members of the CID while Prof. T R Ariyaratne becomes the first and current director of the CID. The first major activity of the CID, "Microcontroller Training Course [MTC]" was initiated by Dr. R Lelwala [coordinater], Mr. Prasan Hettiarachchi and Mr. Navinda Kottege in 2004. Later, the course was renamed as "Training Course in Microcontroller Programming and its applications", and still uses the code name MTC followed by the year. The first research activity of the CID was started by Prof. Sonnadara and Dr. M K Jayananda with Mr. Wasantha [the first M.Phil. degree holder from the CID], on reconfigurable computing. In 2004, Mr. D I Amarasinghe [the second M.Phil. degree holder] started research work on Computational Physics with Prof. D U J Sonnadara, while Mr. Prasan Hettiarachchi and Mr. Nishshanka Jayawantha started research project on grain drying under low humid environment. In 2005, CID was moved to the second floor of the Physics Department Building Sweden
PPE/PPL Groups
Thousands of PPEs were developed and published, often for free, by either individuals or scene groups. A number of commercial PPEs were also developed. The shareware licensing model was used for the majority of non-free PPEs. A number of release groups who were specialized in PPE and other PCB/BBS tool developments were formed, such as the French group Aegis Corp, the Russian group Brutal PPE/PCE/PRO Coders (BPC) and the German groups Peanuts (PNS) and Paranoia (PNA).
Warez groups like PWA and DOD released several PPEs which were used by a lot of Sysops. Examples are the PWA "NewScan" PPE, the PWA "Files-Reverse" PPE and the DOD "LARS Upload Processor".
The French group Aegis Corp became famous for their PPE De-compiler (PPLX) written by Lone Runner, which allowed the de-compilation of PPE binaries back to human readable PPL code. Lone Runner also wrote the Aegis PPL compiler which produced smaller and faster code than Clark Development's original PPL compiler. Other helpful tools for PPE developers followed. Another PPE De-compiler was PPLDecompiler (PPLD) written by CHiCKEN, a member of the "Swiss Coding Division" of the group Electronic Rats (EcR).
PCBoard Metaworlds
Metaworlds was an attempt by CDC to establish a BBS-like environment on the Internet, basically a closed mailbox in HTML format online. Access to the content was only possible for registered users who had to authenticate themselves with username and password to access the system. Metaworlds supported the parallel operation with the standard ANSI based PCBoard BBS software and usedMicrosoft SQL Server as underlying database. A runtime-version of Microsoft SQL Server came with the Metaworlds software. CDC went out of business before Metaworlds was finished. Metaworlds was developed by CDC to make the transition to the Internet when the decline of the BBS became apparent.[10]
References
1. ^ Running PCBoard under Windows 95, NT 3.5x and 4.x, UE-00149.TXT, Underground Empire, retrieved June 16, 2007
2. ^ Richard Holler (May 17, 1994), FAQ file_id.diz, ASP (Association of Shareware Professionals), online version from Textfiles.com retrieved August 4, 2007
3. ^ MURRAY , Utah June 7, 2007
4. ^ David Terry (June 16, 1997), (1 Mw-tech) PCBoard Beta Patch, bbsdocumentary.com, retrieved June 4, 2007
5. ^ Lisa Carricaburu (Friday, June 20, 1997), "Clark Development Is No More" (online at textfiles.com),The Salt Lake Tribune
7. ^ 1994 "Winners for the 1994 Dvorak Telecommunications Excellence Award". 1994. Retrieved 2007-09-25.
8. ^ "Winners for the 1995 Dvorak PC Telecommunications Excellence Awards". 1995-04-06. Retrieved 2007-06-07.
9. ^ Shareware Industry Awards Foundation, The Shareware Hall of Fame, SIAvoting.com, retrieved June 7, 2007
10. ^ The Mighty SCI,PCBoard Newsletter #2 - FAQ Section (German),Underground Empire,retrieved June 16, 2007
External links
§ Mercury Opus Forums - Full and latest version of PCBoard (with source code) always available for download.
§ PCBoard Support Forums - Modded PCBoard 15.4b release with full telnet server package available for download. Also a GREAT PPE collection of only the best groups!
§ 15.3/100 Node + 15.4beta Upgrade - DOS/OS2 Release Install Disks Download
§ Brief history of PCBoard from bbsdocumentary.com (and software downloads)
§ 153 PCBoard PPE's by PWA at The BBS Archive
§ PCboard File Archive A-C (556 PPE's), D-F (333 PPE's), G-I (188 PPE's), J-O (358 PPE's), P-R (354 PPE's), S-Z (337 PPE's) at The BBS Archive
§ PCBoard file archive,Filegate.net
§ DOS BBS software, Mpoli.fi
§ All PPE's released by SAC/PNS (Peanuts)
§ Sysop's corner list of PCB related sites
PCB (software)
From Wikipedia, the free encyclopedia
| Thomas Nau | |
| Initial release | 1990 [1] |
| 2.0 | |
 | |
 |
PCB is an open source software suite for electronic design automation (EDA) - for printed circuit boards (PCB) layout.
PCB was not the first written by Thomas Nau for an Atari ST in 1990 and ported to UNIX and X11 in 1994. Initially not intended as a professional layout system, but as a tool for people that does some home-developing of hardware.[1][2]Harry Eaton took over pcb development beginning with Release 1.5, although he contributed some code beginning with Release 1.4.3
Features
§ Scalable fonts
§ Layer groups to keep signals together
§ Add on device drivers
§ Gerber RS-274X and NC Drill output support
§ Centroid (X-Y) data output
§ PostScript and Encapsulated PostScript output
§ Rats-nest generation from simple net lists
§ Automatic clearance around pins that pierce a polygon
§ Groups of action commands can be undone by a single undo
§ Simple design rule checker (DRC) - checks for minimum spacing and overlap rules
§ Drawing directly on the silk layer
§ Viewable solder-mask layers and editing
§ Netlist window
§ Netlist entry by drawing rats
§ Auto router
§ Snap to pins and pads
§ Element files and libraries that can contain whole sub-layouts, metric grids
§ Up to 16 copper layer designs by default
§ Trace optimizer
§ Rats nest
§ Connectivity verification
§ GNU autoconf/automake based build system
§ PCB is Free Software
References
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