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Телекоммуникационные средства в современном компьютерном мире



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: . ., .



..

1997



I.





MNP-

MNP-







III.

I.

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.

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, .

- -,
.

BBS - Bulletin Board System (. -
), ,
, on-line , ..
.

. FidoNet,
Internet/Relcom.
,
.

,
.

II. .



- ?

- 80- Hayes -
IBM PC.


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- 0 1.
,
.

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.

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,
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, .
.
- MNP10. MNP1, MNP2, MNP3,
MNP4, MNP5, MNP7. MNP5, ..
MNP7 MNP10 ,
. Internet. ,

.

.
Zmodem, Sealink, Ymodem
.

, .
,
..
. Bimodem, Puma, Janus, Zedzap.

MNP-

MNP (Microsoft Network Protocols) -
, Microsoft.

. 10 :

MNP1. ,
. MNP.

MNP2. ,
.

MNP3. ,
( -
).
- , ,
,
20%.

MNP4. , ,
,
MNP2 MNP3. ,
.
,
.
20% .

MNP5. MNP4, MNP5
.
,
.
. 35%
. 20% MNP4
50%. , ,
,
.

MNP6. MNP5 MNP6

. MNP6
V.29.

MNP7.
.

MNP9. V.32 ,
.

MNP10. ,
, , , .
:

-

-


-


MNP .
MNP-.
MNP,
MNP- MNP-.

MNP-

MNP- :

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.

- . ,
MNP-.
.

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MNP-.
MNP, .

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MNP.
.



(
PC- (PCMCIA),
, .).
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( )
FIFO. (First Input First Output - ,
). FIFO , .

. IRQ(Interrupt Request)
,
. . FIFO
.
. Windows95,
OS/2, Windows NT, UNIX .

,
.
.


.

.



.
,
, ,
.

,
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,
RESET.





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FIFO. FIFO
, .


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.

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MR(Modem Ready)

, .

TR(Terminal Ready)

, DTR(Data Terminal Ready),
.

HS(High Speed)

,


CD(Carrier Detect)

, .
,


AA(Auto Answer)

, , ..
. Ring(. -
), .

OH(Off Hook)

. ,
.

RD(Receive Data)

.

SD(Send Data)

, .




14400 V32 V32bis(
, HST V32terbo).
. , ,
. ,
28800 V34(
V.Fast V.Everything).
V34+. / 33600.

( .
.
? HST,
USRobotics. Zyxel .
Zyx ZyCell. Zyx
16800 19200. ZyCell -
.
,
.).

.

GVC

, ,
.

GVC 14440 F1114HV -
. BUSY.
-, II.
.
.

ZyXEL

,
,
USRobotics.

ZyXEL .

1496 - V32 V32bis,
: Zyx ZyCell.
(VOICE) , .
( -
).

1496 ,

, .

ZyXEL
, 115200 .

USRobotics

: USR Sportster, USR Courier,
USR WorldPort . WorldPort
. - .
Courier
.
Sportster.
14400 33600. ,
, , .
, Sportster
-
Courier. USR Sportster
Courier.
HST(High Speed Technology).

1991 :
Sportster Courier?
, Sportster Courier ,
NVRAM (Non
Violatible Random Access Memory - )
Sportster HST
Courier.

III.

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, ,

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,
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-
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:

.. .. Microsoft Windows 95. Microsoft Plus!
. . ABF, , 1996

.. .. ! -, ,
, -ail, BBS. . ABF, , 1996

.. -: .
. -, .-, 1995


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