History Of Data Communication

Question 1

the transfer of data or information between a source and a receiver. The source transmits the data and the receiver receives it.

Answer 1

Data communication

Question 2

information that is stored in digital form

Answer 2

Data

Question 3

is defined as knowledge or intelligence

Answer 3

Information

Question 4

is a set of devices interconnected by media links

Answer 4

Network

Question 5

a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols

Answer 5

Internet

Question 6

A proposal was submitted to a Scottish magazine suggested running a communications line between villages comprised of 26 parallel wires, each wire for one letter of the alphabet.

Answer 6

1753

Question 7

Who developed an unusual system based on a five-by-five matrix representing 25 letters (I and J were combined).

Answer 7

Carl Friedrich Gauss

Question 8

In what year Gauss developed an unusual system based on a five-by-five matrix representing 25 letters (I and J were combined).

Answer 8

1833

Question 9

invented the first successful and practical data communications system which he called the Telegraph.

Answer 9

Samuel F.B Morse

Question 10

Samuel F.B. Morse invented the first successful and practical data communications system which he called the Telegraph.

Answer 10

1832

Question 11

Morse also developed the first practical data communications code which we all know as the

Answer 11

Morse Code

Question 12

Morse secured an American patent for his telegraph.

Answer 12

1840

Question 13

The first telegraph line was established between Baltimore and Washington D.C? And in what Year?

Answer 13

“What hath God wrought!” , 1844

Question 14

the first slow-speed telegraph printer was invented

Answer 14

1849

Question 15

the first high-speed (15-bps) printers were available.

Answer 15

1860

Question 16

invented a telegraph multiplexer which allowed signals up to six different telegraph machines to be transmitted simultaneously over a single wire.

Answer 16

Emile Baudot (1874)

Question 17

invented the telephone?

Answer 17

Alexander Graham Bell (1876)

Question 18

succeeded in sending radio telegraph messages.

Answer 18

Guglielmo Marconi (1899)

Question 19

First commercial radio stations were installed, allowing the transmission of information across large spans of water.

Answer 19

1920

Question 20

Bell Laboratories developed the first special-purpose computer using eletromechanical relay.

Answer 20

1940

Question 21

The UNIVAC was the first mass produced electronic computer, built by the Remington Rand Corporation

Answer 21

1951

Question 22

batch processing systems were replaced by on-line processing systems.

Answer 22

1960s

Question 23

microprocessor-controlled microcomputers were introduced.

Answer 23

1970s

Question 24

Personal computers became an essential item.

Answer 24

1980s

Question 25

The AT&T operating tariff allowed only equipment furnished by AT&T to be connected to AT&T lines.

Answer 25

1968

Question 26

Internet began to evolve at the ARPA.

Answer 26

1969

Question 27

ARPANET was formed to connect sites around the US.

Answer 27

1970

Question 28

The World Wide Web became publicly available

Answer 28

1991

Question 29

3 major developments

Answer 29

1. Large-scale integration of circuits reduced cost and size of terminals and communication equipment 2. New software systems that facilitated the development of data communication networks 3. Competition among providers of transmission facilities reduced the cost of data circuits

Question 30

When we communicate , we share information . Information can be?

Answer 30

Local or Remote

Question 31

communication occurs face to face

Answer 31

Local

Question 32

communication occurs over a long distance

Answer 32

Remote

Question 33

is any system of computers used to transmit and/or receive information between two or more locations.

Answer 33

Data Communication Network

Question 34

a set of equipment, transmission media, and procedures that ensures that a specific sequence of events occurs in a network in the proper order to produce the intended results.

Answer 34

Network Architecture

Question 35

include the most modern and sophisticated networks and protocols available.

Answer 35

Current networks

Question 36

A network or a protocol becomes a legacy when no one really wants to use it, but for some reason it just won’t go away. It is the generic name assigned to any old network, which is rarely used today and not part of the TCP/IP protocol suite. Legacy networks are mostly proprietary to individual vendors.

Answer 36

Legacy Networks

Question 37

when an antiquated network or protocol finally disappears

Answer 37

Legendary Networks

Question 38

All stations and devices on the network share a single communication channel.

Answer 38

Broadcast Network

Question 39

It only has two stations. No addresses are needed. All transmissions Intended for and received by the other station.

Answer 39

Point-to-point Network

Question 40

are sets of rules governing the orderly exchange of data within the network or a portion of the network. Can either be Connection Oriented or Connectionless.

Answer 40

Data communication protocols

Question 41

refers to the structure or format of the data within the message, which includes sequence in which the data are sent.

Answer 41

Syntax

Question 42

refers to the meaning of each section of data.

Answer 42

Semantics

Question 43

are guidelines that have been generally accepted by the data communication industry. (Proprietary or Open)

Answer 43

Data communications standards