1. _________________________________________________________3 2. _____________________________________________3 3. _________________________________________4

3.1 _______________________________________________________4

3.2 _____________________________________________________________4

4. _______________________________7

4.1 Netshow - Media Player _______________________________________________7

4.2 Real Server - RealPlayer ________________________________________________11

4.3 NetMeeting____________________________________________________________13

5. _______________________________________17

2

1.

(Internet) , . :

1) - video video .

2) - audio (.. , ) . .

3) .

4) . .

5) ' .

2.

() (. .wav, .avi, .mov, .mpg) , / CD-ROM . , / . ( 10 MB 28.800bps, ). .

3

3.

3.1

, . (Stream). bytes :

1. .

2. . 3.

.

(IP) . "" "", . . . . plug-ins (browser) (.. Netscape Navigator Internet Explorer).

3.2

.

) (Unicast) , (client) (server) , (point to point). . 15 , 15 , . . : ' .

' - ' ( 1). (indexed) (play) (stop) ,

4

(fast forward) (rewind) (pause) . .

1 : '

, ( 2). video audio. . , . . (live source), .

) (Multicast) , ( 3). . Ethernet (LAN Ethernet) (routers) (Multicasting Enabled Routers).

5

3 :

Intranet. 20 Ethernet-LAN Intranet video Internet, video . Intranet Internet , , , LAN ( 3). . . , . .

( ) Mbone (Multicast Backbone On the InterNEt). , , ( ). 4.

6

4: .

4.

, . plug-ins -. .

4.1 Netshow - Media Player

To Netshow Microsoft . audio, video intranets, LANs Internet. To Netshow . , Netshow . (server distribution). .

To Netshow ( -) live audio video. video (Scalable video), video . video .

Netshow Windows NT. Netshow Media Player Microsoft ( 5).

7

Internet Explorer Netscape Navigator Media Player . ( 6).

5 : Media Player Microsoft

Microsoft MMS (Microsoft Media Server) . Media Player URL (Uniform Resource Location) "mms://server/path/filename" server_name , path filename .

Media Player (.. wav,snd,mid,mp3) - (.. mpg,mov,avi). ra RealPlayer. Microsoft . Advanced Stream Format asf. Netshow asf . kamaral.asf Netshow rea.it.uom.gr , Media Player "mms://rea.it.uom.gr/kamaral.asf'

8

6:

. (link) . mms , (redirection) . asx. HTML "" asx file.asx asf .

Media Player ( 7) Media Player asf ( 8)

9

10

k^pt^ngHofcidurTi |4*Wfth*4U

CKM MW*H> inpn in \>nnr 'IL-.-J/: ,^

, (buffering) . ( 9). ( ) .

4.2 Real Server - RealPlayer

Microsoft Real. - Netshow-Media Player Microsoft, Real RealServer - RealPlayer. ra. Real . (metafiles) ram rpm asx Microsoft ( ram RealPlayer rpm RealPlayer plug-in ).

RealServer. RealPlayer ( 10) . RealPlayer (channels) . "Sites" . "Presets" ( 11).

11

12

File View Options Presets ^ites JHelp

,.i |Enter your Audio/Video search here

RealPlayer . .

RealServer 12. :

1) .

2) . Real.

3) RealPlayer .

4) RealPlayer RealServer .

5) RealServer RealPlayer. 6) RealPlayer .

Real

12 : RealPlayer.

4.3 NetMeeting

Netmeeting Microsoft . Netmeeting :

13

1) Intranet. 13 (.. ils.hol.gr), . . , .

13 : ils.hol.gr

2) , ( ). . , ( 14).

14

14 : Netmeeting

3) (whiteboard) . "Whiteboard" ( 14). , , ( 15). . .

15

4) . "Chat" ( 14). , 16. "Message" .

16 : Netmeeting

5) . "Share" ( 14). ( 17). word, excel, powerpoint . . .. Word . "Collaborate" . .

16

6) . "Tools" , "File Transfer". . , "Send" .

5.

, . VDO VDOPlayer. 17. video video video .

17 : VDOLive Player

Vosaic. video video . 18 Vosaic .

17

Surround Videos Microsoft (http://carpomt.msn.com). . ( 19) . .

Media Player Http://www.microsoft.com/windows/mediaplayer/download/ RealPlayer Http://www.real.com/products/player/ Netmeeting Http://www.microsoft.com/netmeeting VDOLive Player Http://www.vdo.net/download Vosaic Player Http://www.vosaic.com

18