From: santas@inf.ethz.ch (Philip Santas)
Subject: Re: Pavepistnmio Kyprou
Organization: Dept. Informatik, Swiss Federal Institute of Technology (ETH), Zurich, CH
Date: Thu, 5 Nov 1992 11:30:11 GMT


In article <schoinas.720668464@cs.wisc.edu> schoinas@fox.cs.wisc.edu (Yannis Schoinas) writes:
>santas@inf.ethz.ch (Philip Santas) writes:
>
>>Poias para6osns? Pare gia para6eigma to Computer Science.
>>Sta germanika eivai Informatik kai oxi Computer Wissenschaft
>>(oi germavoi xrnsimopoiouv tov oro Rechner avti gia Computer,
>>etsi exouv Parallele Rechnern, etc)
>>sta gallika Informatique (kai pali alles le3eis gia computer)
>>sta ellnvika Plnroforikh (kai pali alles le3eis gia computer)
>
>H paradosh sthn opoia anaferomai einai oti akribvs kapote
>oi ypologistes htan terastioi ogkoi oi opoioi diabazan
>diatrhtikes kartes kai eixe nohma na kaneis ena asteio
>legontas oti to programma den trexei giati epese ena bug
>sthn diatrhtikh mhxanh thn vra poy diabaze tis kartes soy.

Kai emeis eixame kartes tote sto EMP (sta prwta xrovia), alla
pote 6e legame oti mas epese evas _korios_ sto mnxavnma.
Giati va to poume _bug_ afou pote 6ev 8elame va poume to
sygkekrimevo?

>Gia ta ellhnika ua elega oti einai Episthmh Ypologistvn.
>Allvste, ayto grafei sto ptyxio moy.

Sto EMP pali yparxei tomeas Mnxavikwv Ypologistwv kai Plnroforikhs.
Gia EY 6ev akousa tipota (patrivo eivai auto?)
Evta3ei, Plhroforikh-Episthmn Ypologistwv = 1-1.
Ekei 8a ta xalasoume? Pavtws oxi kai CS sta ellnvika!

>>Kai afou 8ewreis oti stis kaivourgies episthmes prepei va leme
>>ta pragmata opws kai oi 3evoi, pare gia para6eigma
>>tnv "Epixeirnsiakh Ereuva" (operational research) pou 3ekivnse
>>kata tov A' Pagkosmio Polemo. Bres mou estw kai eva 3evo oro
>>stn bibliografia.
>
>Simplex?

To opoio grafetai pavta me _kefalaio_ S: auto pros apavtnsn...

>>>>>> Giati CPU? Giati oxi KME (=Kentriki Monada Epeksergasias)?
>
>>H6n yparxei krisimn maza gia to KME, tnv opoia 6i6askovtai
>>oi foitntes stis sxoles twn hlektrologwv.
>
>Kai egv etsi to emaua gia prvth fora sthn sxolh moy. Alla
>hdh eixa diabasei agglika biblia (p.x. Z80 assembly language)
>sto opoio htan CPU. Kai meta ta prvta mauhmata, se ola ta
>ypoloipa sta biblia h papers anaferontan san CPU mias kai
>htan sta agglika.

Gia katse giati 8a mas trellaveis: 6nla6h perimeves kai oi Aggloi
va tn leve KME ??? Oi av8rwpoi exouv to _6iko_ tous CPU, giati
prepei esy va perimeveis va to 6iabaseis ws KME ekei?

>>Oso gia tn CPU:
>>H Apple kykloforei sta ellnvika eva perio6iko pou legetai Mhlo.
>>Poly kalh prospa8eia kata tn gvwmn mou (gia skepsou na to elege
>>Eipl :-)

>[...]
>Alla otan lev texnika dynaton den shmainei oti einai kai
>praktiko. Mporeis na allajeis thn command language toy
>mhxanhmatos soy, mporeis na baleis ellhnikoys xarakthres...
>Posoi ua to xrhsimopoihsoyn?

Kai ta perissotera mnxahmata stnv Ella6a eivai apo tn Germavia:
6ev exw akousei omws kapoio ergatn se wra 6ouleias va xrnsimopoiei
germavikous orous gia auta pou kavei. 

Twra eav kapoioi komputera6es htav apo pai6akia katapiesmevoi me ta 
ellnvika kai 8elouv va 3eskasouv  kavovtas figoura me prwtogovn 
3evn glwssa tou pezo6romiou, auto 6ev vomizw oti eivai sobaro 8ema
(mou 8umizei kapoies kyries se palies taivies pou pngevave eis tous
Parisious kai milousav me tis files tous gallika tns symforas).

>>> NP-complete mh-polyvnimiko-plhres(?). 
>
>>NP-plhres. Perilambavouv tov oro NP, alla oxi to "complete".
>
>Kai pvs to diabazeis? Ni-Ro, h En-Pi? 

Ev-Pi. Sebasmos sto au8evtiko.

>>>sthn ellhnikh glvssa etsi opvs einai: "Kanv edit ena file. Kanv vi ena
>>>file." Mallon protimotero apo to: "Ekdidv ena arxeio." Sto katv katv
>
>>Stnv etairia pou 6ouleua stnv A8hva legame akribws auto:
>>"Ek6ose auto to arxeio, se parakalw", kai 6ev eixame kaveva problnma
>>epikoivwvias. Koita, kai se auth tn le3n, n pleiopsnfia twv xrhstwv
>>(h protimas "users"?), xrnsimopoiei tov oro "ek6i6w"
>
>H antistoixia metajy xrhstvn kai users einai gia mena sxedon
>apolyth kai den exv problhma na enallasv tis dyo lejeis.
>
>Den jerv ti ennoeis me ton lejh pleiochfia. An les oti h pleiochfia
>tvn ellhnvn poy xrhsimopoiei ypologistes ua diafvnoysa entona. Einai
>h prvth fora poy akoyv kapoia periptvsh san ayth poy les.

Kai gia meva eivai h prwtn fora pou akouw kapoiov va leei ot
to "ek6i6w eva arxeio"  6ev protimeitai. 3 xrovakia 6ouleua se
etairia ypologistwv stnv A8hva. Sth grammatea legame, "typwse
auto to arxeio" kai kammia fora stnv arxh auth mas rwtage "me 'lpr'?"
(kai mas trelleve otan to arxeio htav .dvi :-)

Dev mporoume ka8e fora va leme "kave dvips auto to arxeio", h
"kave lpr auto", kok. Les typwvw, kai teleiwveis.

>>>metaferv kai texnikh plhroforia akribestera dhl. otan pav kai katsv
>>>mprosta sthn ouonh ua gracv "vi <file>" ki oxi "ekdvse <arxeio>".
>
>>Mper6eueis tous orous tou Unix me tn Fysikh Glwssa.
>
>Ti ua pei fysikh glvssa? Dinv odhgies se kapoion na kanei kati.

Se fysikh glwssa les "ek6i6w" se glwssa Unix les "vi". Teleia kai paula.

Xairetw, Filippos