Prelim

Question 1

process of communicating information in binary form between two or more points.

Answer 1

Data communications

Question 2

sometimes called computer communications

Answer 2

Data Communications

Question 3

one of the most rapidly evolving technologies.

Answer 3

Data Communications

Question 4

Data communications is sometimes called?

Answer 4

Computer communications

Question 5

involves the use of electrical or electronic apparatus to communicate information in the form of symbols and characters between two points

Answer 5

Modern data communications

Question 6

smoke signals, mirrors, signal flags, and lanterns in use in the?(what year)

Answer 6

18th and 19th centuries.

Question 7

One of the early proposals is submitted to a? In what year?

Answer 7

Scottish magazine in 1753

Question 8

One of the early proposals, submitted to a Scottish magazine in 1753, was simple but had profound implications for hardware.

Answer 8

26 parallel wires from town to town, one wire for each letter of the alphabet.

Question 9

A _ inventor built a prototype system based on this 26-wire principle.

Answer 9

Swiss inventor

Question 10

A Swiss inventor built a prototype system based on this_

Answer 10

26-wire principle.

Question 11

What year did Carl Friedrich Gauss used a code based on a 5-by-5 matrix of 25 letters.

Answer 11

1833

Question 12

1833, who used a code based on a 5-by-5 matrix of 25 letters.

Answer 12

Carl Friedrich Gauss

Question 13

In 1833, Carl Friedrich Gauss used a code based on a?

Answer 13

5-by-5 matrix of 25 letters.

Question 14

Who invented the electric telegraph

Answer 14

Samuel F.B. Morse

Question 15

19th century an American, Samuel F.B. Morse, invented the?

Answer 15

electric telegraph

Question 16

electric telegraph was first invented in?

Answer 16

1832

Question 17

The best known demonstration took place in what year?

Answer 17

1844

Question 18

What was the message in the demonstration

Answer 18

What hath God wrought

Question 19

The best-known demonstration took place in 1844, when Morse transmitted, over a wire from _ to _

Answer 19

Washington to Baltimore

Question 20

The mail was delivered by?

Answer 20

Pony express

Question 21

_ are the symbols of the binary system.

Answer 21

0 and 1

Question 22

A binary digit is commonly referred to as a?

Answer 22

bit

Question 23

use of an intelligent device to convert a character or symbol into coded form and vice versa.

Answer 23

Communications codes

Question 24

Standard(agreed-on-in-advance) interpretations between signaling elements and characters.

Answer 24

Codes

Question 25

The letters, numerals, spaces, punctuation marks, and other signs and symbols on a keyboard.

Answer 25

Characters

Question 26

Something that is sent over a transmission channel and used to represent a character.

Answer 26

Signaling Elements

Question 27

Baudot code was invented by?

Answer 27

Frenchman Emile Baudot

Question 28

The most prominent of these had been invented in the_ by a Frenchman named Emile Baudot.

Answer 28

1870s

Question 29

The_ and variations of it were the backbone of communications for almost half a century

Answer 29

Baudot code

Question 30

What does EBCDIC standards for

Answer 30

Extended Binary-Codes Decimal Interchange Code

Question 31

developed by IBM and primarily used for synchronous

Answer 31

Extended Binary-Codes Decimal Interchange Code (EBCDIC)

Question 32

8 bit code and 256 characters to be represented.

Answer 32

Extended Binary-Codes Decimal Interchange Code (EBCDIC)

Question 33

seven-bit code, formally known as ANSI Standard X3.4-1977. ASCII can depict 128 characters

Answer 33

American Standard Code for Information Interchange (ASCII)

Question 34

A variation of ASCIl, commonly referred to as_

Answer 34

"extended ASCII,

Question 35

A variation of ASCIl, commonly referred to as "extended ASCII," gained wide acceptance with the introduction of the _

Answer 35

IBM Personal Computer of 1981.

Question 36

ASCII is formally known as

Answer 36

ANSI Standard X3.4-1977

Question 37

(ANSI) stands for?

Answer 37

American National Standards Institute

Question 38

ISO stands for

Answer 38

International Organization for Standardization

Question 39

codes that follow have special meaning.

Answer 39

The Escape Character

Question 40

_was the next major step after the telegraph

Answer 40

Teleprinter

Question 41

_ equipment has been the backbone of nonvoice business communications for over half a century.

Answer 41

Teleprinter

Question 42

What is tty

Answer 42

Teletypewriter

Question 43

a teleprinter with a keyboard for input,

Answer 43

Teletypewriter

Question 44

Two nationwide public teleprinter networks

Answer 44

TWX AND TELEX services