Welcome at the GSEOS V Homepage
Here you will find the latest information about the IDA Ground Support
Equipment Operating System Version 5 (GSEOS V).
The Software Package GSEOS V was developed at the Technische Universität at
Braunschweig, Institut für Datentechnik und Kommunikationsnetze (IDA, Institute
of Computer and Communication Network Engineering).
Inheritance
IDA developed the first version of the GSEOS during the 1980’s. It was
realized that use of a single checkout system would save money across the
various projects. Dues to the easy integration of hardware into the PC a test
system GSEOS 1.0 was originally developed for DOS based PC systems. It uses a
simple character based interface for data displays.
The work on GSEOS 2.0 that aimed at improved user and command interfaces as
well as recording capabilities was preempted by the advent of the Windows
graphical user interface extension running on DOS. Development for DOS was
stopped and that for GSEOS 3.0 running on Windows 3.0 started.
On GSEOS 3.0 the data display capabilities could be drastically improved and
include graphics in addition to the old text based displays. A recorder module
was added as well as support for monitoring the data. A simple decoder scripting
language was implemented that meets the most common decoding needs.
Up to version 3.3 the GSEOS supported more than 30 different space
instruments.
At the end of 1990’s engineers at APL started working on an own branch in the
GSEOS history tree. These efforts resulted in the GSEOS versions 3.4 (16 bit,
Windows 3.0), 4.0 (32 bit, Windows 95/98/NT) and 5.0. At that point the
development of APL and IDA diverted.
As the system evolved over the years, problems became more and more apparent.
First of all, technology has moved on to 32-bit systems (Windows NT/2000/XP),
and support for 16-bit development has became scarce. Second, the use of
different syntax and scripting language for the different modules made the
system less consistent, and harder to document and configure. Furthermore the
old system has some disadvantages such as block size limitation at 64 Kbytes,
commanding (output data) throughput limited by timer interval (55 ms), and
language drawbacks (e.g. no loops).
IDA started the development of the new GSEOS 5.0 (now called GSEOS V) in
January 1998. To have the possibility to create fully new software architecture
without any consideration for previous limitations, the implementation starts
from scratch. There is no source code used from previous GSEOS versions.
Currently the GSEOS V is used for numerous projects listed in the project
section of this website.
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