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Informācijas tīkli
internets un e-
pasts
Justīne Mežinska
11.Klase
Zemgales Vidusskola
Internets
E-pasta priekšrocības
 ātra ziņojuma nodošana jebkurai personai
jebkura valstī pasaulē.;
 lēts un efektīvs komunikāciju veids.;
 lietotāji var apmainīties arī ar elektroniskiem
dokumentiem;
 iespēja izmantot adresātu sarakstu;
 iespēja vienu vēstuli nosūtīt vairākiem
adresātiem vienlaicīgi;
 iespēja izmantot ziņojumu pārvaldības rīkus.
Trūkumi
 lai saņemtu e-pastu, nepieciešams dators,
kas pievienots internetam;
 diezgan nedrošs, jo e-pasts glabājas
serverī, kur to iespējams izlasīt;
 e-pastam pievienoti faili jeb piesaistnes
var saturēt datorvīrusus;
 kļūdas un paviršība e-pasta lietošanā;
 e-pasta pārslodze surogātpasta
(spamming) dēļ.
Kas nepieciešams, lai lietotu
e-pastu?
Lai varētu lietot e-pastu, ir jāizpilda trīs priekšnoteikumi:
 Interneta savienojums. Lai datoru pievienotu internetam, vispirms ir
jānoslēdz līgums ar interneta pakalpojumu sniedzēju (Internet service
provider — ISP). ISP sniedz piekļuvi internetam parasti par mēneša
maksu. Ir nepieciešams arī modems.
 E-pasta programma vai Web bāzēts pakalpojums. Var lietot
operētājsistēmā Windows iekļauto e-pasta programmu Windows Mail.
Var lietot arī jebkuru citu e-pasta programmu, ja tā ir instalēta datorā.
Var arī parakstīties uz bezmaksas Web bāzētiem e-pasta
pakalpojumiem, piemēram, Gmail, MSN Hotmail vai Yahoo! Mail, ja tos
atzīstat par labākiem. Šie pakalpojumi ļauj pārbaudīt e-pastu ar Web
pārlūkprogrammu no jebkura datora, kas pievienots internetam.
 E-pasta adrese. E-pasta adresi var saņemt no ISP vai Web bāzētā
e-pasta pakalpojuma, parakstoties uz to. E-pasta adrese ir veidota no
lietotājvārda (izvēlētā segvārda, īstais vārds nav jānorāda obligāti),
zīmes @ un ISP vai Web bāzētā e-pasta pakalpojuma sniedzēja
nosaukuma, piemēram, persona@example.com.
Kā internets strādā?
Internets NAV Globālais
tīmeklis!
 Mēdz uzskatīt, ka jēdzieni internets un globālais
tīmeklis ir sinonīmi, taču tās ir divas dažādas lietas:
 internets ir globāls, savā starpā savienotu datoru
tīkls, kas glabā un pārsūta informāciju. Globālais
tīmeklis (web) ir dokumentu kopums, kas tiek
organizēts un pārraidīts, izmantojot internetu;
 informācija internetā tiek pārsūtīta, izmantojot
dažādas valodas (protokolus). Tīmeklis viens no
interneta servisiem, kurš strādā, izmantojot
hipertekstu, kamēr citi interneta servisi, piemēram,
e-pasts, FTP vai IRC izmanto citus protokolus;
 internets var pastāvēt bez tīmekļa, bet tīmeklis bez
interneta - nē.

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Informācijas tīkli

  • 1. Informācijas tīkli internets un e- pasts Justīne Mežinska 11.Klase Zemgales Vidusskola
  • 3. E-pasta priekšrocības  ātra ziņojuma nodošana jebkurai personai jebkura valstī pasaulē.;  lēts un efektīvs komunikāciju veids.;  lietotāji var apmainīties arī ar elektroniskiem dokumentiem;  iespēja izmantot adresātu sarakstu;  iespēja vienu vēstuli nosūtīt vairākiem adresātiem vienlaicīgi;  iespēja izmantot ziņojumu pārvaldības rīkus.
  • 4. Trūkumi  lai saņemtu e-pastu, nepieciešams dators, kas pievienots internetam;  diezgan nedrošs, jo e-pasts glabājas serverī, kur to iespējams izlasīt;  e-pastam pievienoti faili jeb piesaistnes var saturēt datorvīrusus;  kļūdas un paviršība e-pasta lietošanā;  e-pasta pārslodze surogātpasta (spamming) dēļ.
  • 5. Kas nepieciešams, lai lietotu e-pastu? Lai varētu lietot e-pastu, ir jāizpilda trīs priekšnoteikumi:  Interneta savienojums. Lai datoru pievienotu internetam, vispirms ir jānoslēdz līgums ar interneta pakalpojumu sniedzēju (Internet service provider — ISP). ISP sniedz piekļuvi internetam parasti par mēneša maksu. Ir nepieciešams arī modems.  E-pasta programma vai Web bāzēts pakalpojums. Var lietot operētājsistēmā Windows iekļauto e-pasta programmu Windows Mail. Var lietot arī jebkuru citu e-pasta programmu, ja tā ir instalēta datorā. Var arī parakstīties uz bezmaksas Web bāzētiem e-pasta pakalpojumiem, piemēram, Gmail, MSN Hotmail vai Yahoo! Mail, ja tos atzīstat par labākiem. Šie pakalpojumi ļauj pārbaudīt e-pastu ar Web pārlūkprogrammu no jebkura datora, kas pievienots internetam.  E-pasta adrese. E-pasta adresi var saņemt no ISP vai Web bāzētā e-pasta pakalpojuma, parakstoties uz to. E-pasta adrese ir veidota no lietotājvārda (izvēlētā segvārda, īstais vārds nav jānorāda obligāti), zīmes @ un ISP vai Web bāzētā e-pasta pakalpojuma sniedzēja nosaukuma, piemēram, persona@example.com.
  • 7. Internets NAV Globālais tīmeklis!  Mēdz uzskatīt, ka jēdzieni internets un globālais tīmeklis ir sinonīmi, taču tās ir divas dažādas lietas:  internets ir globāls, savā starpā savienotu datoru tīkls, kas glabā un pārsūta informāciju. Globālais tīmeklis (web) ir dokumentu kopums, kas tiek organizēts un pārraidīts, izmantojot internetu;  informācija internetā tiek pārsūtīta, izmantojot dažādas valodas (protokolus). Tīmeklis viens no interneta servisiem, kurš strādā, izmantojot hipertekstu, kamēr citi interneta servisi, piemēram, e-pasts, FTP vai IRC izmanto citus protokolus;  internets var pastāvēt bez tīmekļa, bet tīmeklis bez interneta - nē.