. An operating system is the program that controls all the other parts of a computer system - both the hardware and the software. Most importantly, it allows you to make use of the facilities provided by the system. Every computer has an operating system. The UNIX operating system has three important features; a kernel, the shell and a filesystem. The Kernel . The Shell . UNIX file system . More about the UNIX operating system .

This is Zeiss-1000 main server computer zserv.sao.ru . ... In-dome" TV-camera . and Control room . To-BTA" TV-camera . and it's last images . Outdoor TV-camera . and it's control . ... All-Sky Sky140 TV-cameras . All-Sky archive . Sky140 archive . ... control interfaces . for Sky 140 o . for AllSky 180 o . Zeiss 20sm guiding telescope . TV-camera . ... draft interface for Zeiss guide . Last demo image observed . ...

Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Moscow, 2008 Acknowledgements A.Belinskiy M.Kornilov A.Tokovinin M.Kuznetsov P.Kortunov E.Gorbovskoy SAI administration some SAI students Pulkovo solar station (KHSS) staff RFBR support MAVEG Gmbh Why to study optical turbulence and some other relevant ... Mean seeing by DIMM data for this night is 1''5. ...

IKI Seminar . Mechanics, Control and Informatics . Main page . Reports . Discussion . ... The seminar is dedicated to investigation of dynamics, control and identification of mechanical systems and use of modern computer and information technologies in order to solve these problems. The object of the seminar is theoretical research and applications including space research. Main results of works presented on the seminar are placed on this site and freely accessible. ...

... Satellite data ] . SMIS ] . SMIS IKI RAN: table of contents . About SMIS laboratory Team . ... PREDICT - Satellite orbit and antenna tracking data calculation . ... XV_FRAME - Raw HRPT data processing: browsing, fragmentation, geo-location, storing to TDF format . ... XV_AVHRR - AVHRR instrument data processing . ... Satellite data NOAA . ... Russian Regions . ... Operational archive . ... Data archive . ... Archive . ... Telemetry data operational archive . ... Data processing examples . ...

... Chapter 1. History of computers . ... Blocks of computer . ... Operation system . ... File system . ... Operations with files (NC) . ... File editor (NE) . ... Computer viruses . ... Windows 95/98 system . ... Computer documents (Word) . ... Answers to the questions . Appendix A. Windows 3.1 system . Appendix B. About the book for parents . ... On this page you will find the first chapter and introductions and control questions from several other chapters. ...

ARMAGH PLANETARIUM IN THE 1990s Dawn of the Digistar era This decade saw the arrival of our first digital projector, an Evans & Sutherland Digistar 1. This was a revolutionary new approach to planetarium display equipment. ... This was the first Digistar projector to be installed in the UK. ... In 1994 a new section was added to our building, doubling its size. ... A walk through the stars Our Astropark opened in 1994. ... Armagh's Astropark allows visitors to walk through the Cosmos ...

... Tracking stations will be selected in accordance with the schedule issued daily by the General Operative Control Group (GOCG) in Lavochkin Association with the gaps in operations during spacecraft contact with the control stations (CS). ... Communication frequencies (carrier): high data rate information transmission downlink from the SRT ­ 15.000 GHz; uplink synchronization ­ 7.2075 GHz; downlink synchronization ­ 8.400 GHz. ...

... Winter 2016 Mercury (PDF, 11.4 MB) . Click on the link above to view the pdf, or right-click (PC)/control-click (Mac) the link to download the file to your computer. See contents and selected excerpts only from the current issue: Winter 2016 . ... One copy of this magazine may be downloaded on any single computer and/or printed for your personal, non-commercial use. ... Complete content for online Mercury is available to institutional subscribers for 2007 issues on. ...

... Bad Astronomy . ... Movies . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Why are computers not displayed accurately in movies. In most movies I have seen, computers are not displayed accurately. ... Another thing is the sounds that a computer makes. Even in movies today, each keystroke corresponds with a beep or blip sound made by the computer. ... This isn't so much a question about computers as it is about movies. ... 2008 Phil Plait. ...

Astronomy Picture of the Day . ... 8.03.1997 . ... Credit Copyright: DMR , COBE , NASA , Four-Year Sky Map Explanation: Above are two images of the microwave sky, north and south of our galaxy's equator , based on data from NASA's COsmic Background Explorer (COBE) satellite . ... These spots are the oldest, most distant structures known. They represent temperature variations in the early Universe. ... Publications with keywords: COBE - hotspots . ... Microwave Hotspots: The Oldest Structures Known ...

This course will deal with the issues of alternative energy sources and sustainable energy sources. ... We will therefore make heavy use of network resources (e.g. the Internet) for providing documentation and guides to various forms of sustainable energy technology. ... All assignments will be posted there as well. ... The course will start out covering solar energy but will then move to other alternative energy sources such as, Wind, Tides, Hydroelectric, Ocean Currents, and Geothermal. ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

... The tracking system works in micro-step regime with a computer step of correction = 0.003 arcsec per second of time and a maximum speed of correction up to 4.6 arcsec per second of time. ... The APD module was constructed for performing experiments of receiving of 2 Mbps signals from “ARTEMIS” using the Cassegrain focus of 0.7m telescope. ... GaAs PIN photo diode. ... Laser module with thermoelectric stabilisation of laser diode. ... Electronic module for turbulence compensation system . ...

Computers become more and more popular nowadays. That means that the amount of people who are able to work with computer programmes and play computer games has increased. In many cases computer games are the only thing that a person is accustomed to. ... As a result of this epidemic "homo playing" may put on the isoreality helmet which makes a person, crazy about games, forget about food, slumber and all other components of real life: "homo playing" becomes isolated from community. ...

A very important stage in a story of formation of any new science is the shift from discussion of situation which are possible but do not occur in practice due to some reason to recognition of real phenomena of interest. ... We suggest to consider computer viruses as this new specific form of life which is coming in the contact with our form of life. ... Computer life has been created by human being, the role of independent evolution of computer viruses seems to be still negligible. ...

... Russian KOI8 . ... Radio telescopes in cosmology [Russian text PDF ] . ... Excursion at RATAN-600 radio telescope, 1998 (Russian koi8): LaTeX file , gzipped PostScript file (30k) ) . ... Problems of radio astronomical data analysis, 1999 (Russian koi8: html , gzipped PostScript file (950k) ) . Radio galaxies, 1999 (Russian koi8: html , gzipped PostScript file (1012k) ). ... Practice "Selection of distant radio galaxy candidates", 1999 (Russian koi8: gzipped PostScript file (410k) ). ...

... 3 ­ Sternberg State Astronomical Institute, Moscow, :jeanna@sai.msu.ru The graphic method of the analysis of an arrangement of linear structural elements on geographical and geological maps of continents (A.V.Dolitsky, [1]) has allowed to find out global stress fields of the past and among them one which directions (the main normal and maximal tangents) describe more than 80 % of all linear elements of a relief. ... The found poles share program way on density of an arrangement on 3-4 groups. ...

... Electrode polarization measurements . ... Processing of ceramic materials, electrode systems and electrochemical cells . ... The technique is based on the measurements of a sample length variations with temperature or isothermal changes of the atmosphere, imploying the Linseis L75 vertical dilatometer. ... The gas system is equipped with a programmable gas-box, electrochemical oxygen pump and a sensor enabling to ajust and to continuously control the oxygen partial pressure in the range 10-21 - 1...

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...