Networking

Telex transmission for an electrical utility

Defined and developed procedures to transmit a telex directly from a word processor, through a Videotex messaging network.
Included follow-up of transmission acknowledgements.
Keywords: RS232, Serial communication, Modem, Wordperfect, DOS, Minitel, PC
Duration: 2 weeks


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Warehouse management for a food distribution company

Designed and implemented a gateway for transferring data between an Altos multi-user system and an IBM38 mainframe.
Users entered data into remote radio-terminals, which sent the information to the Altos system.
The complex and robust transfer protocol was defined by the client.
Keywords: C, Xenix, Signals, FIFO, Altos, IBM 38
Duration: 1 month


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Accounting, invoicing, production for a real estate developer

Reorganized the IT department.
Audited company's LAN for setting up security and reliability procedures.
Also audited methods for improving user productivity.
Defined backup strategy, follow-up and user support methods.
Keywords: Audit, Methods, Strategies, Unix, Worknet, Multiplan, Uniplex, Altos
Duration: 3 months


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Production, accounting for a startup engineering office

Consulting contract: surveyed various enterprise solutions, defined IT strategy for a new company.
Supervised installation and administration of the network, as well as interfacing between applications.
Keywords: Netware, Lotus, Saari, CAD, Installation, Administration, Integration, DOS, PC
Duration: 4 months


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Local Area Networks

Wrote a 25-page report on LAN state-of-the-art, and gave a lecture to beginners.
This project was part of a training on scientific and technical communication. As such, its objective was double:

Keywords: LAN, Netware, WordPerfect
Duration: 2 weeks


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Serial communications

Our client had a Siemens programmable device that he used to control programmable machines. He had developed a collection of applications for that device, but couldn't figure out how to print the source code of those applications.
I bought an RS232 interface for their device, made the cable, set up the connection and trained the users.

Keywords: Serial communications, RS232, RS232C, Wiring, Siemens
Duration: 1 day


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Dispatching/Delivery for a French daily newspaper

Developed an interface for real time data synchronization between Oracle databases, through a specific LAN. Low layers were written in 8086 assembly language, upper layers in C. At this time, LANs were far from being as popular and off-the-shelf as they are now. LAN programming was much more experimental than industrial.
Keywords: C, 8086, PRO*C, Oracle, SQL, Protocol converter, DOS, PC
Duration: 3 months


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File transfer utility

Developed an application to process file transfers between Apple 3 and PC.
Main objective was to improve productivity on a series of Apple-to-PC ports.
Custom protocol included batch and interactive modes, checksum control, error checking and half-duplex.
This application is 100% portable, which makes maintenance much easier : the same source code compiles on both Apple and PC.
If you're curious, I used this application to transfer its own source code from one platform to another, making upgrades easier!
Keywords: RS232, Pascal, UCSD, Apple, PC
Duration: 1 month


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