Parallel vs Serial Transmission Quiz and Flashcards

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Questions and Answers

What are the primary elements of communication discussed in the chapter?

Coding, media, electrical conductors, and light pipes

Data organization, electromagnetic transmission, and audio waves

Source, destination, data, and medium (correct)

Transmitter, receiver, audio waves, and information

What are the media used in data communications according to the text?

Wireless, radio, coding, and information

Audio waves, air, copper connections, and fiber-optic cabling

Data organization, transmitter, receiver, and medium

Electrical conductors, light pipes, and electromagnetic transmission (correct)

What is the purpose of communication according to the text?

To transmit data from the source to the destination(s) (correct)

To discuss technical history and coding

To project sound data through air

To organize data into information

What does the chapter primarily deal with?

Fundamentals of data communications Signup and view all the answers

What is the main advantage of parallel transmission over serial transmission?

It is faster for data transmissions within a computer cabinet Signup and view all the answers

Which type of signal represents quantities at any value between a specified set of upper and lower limits?

Analog signal Signup and view all the answers

What is the purpose of codings in data transmission systems?

To organize data in a human-readable form Signup and view all the answers

Which signaling means is used in contemporary data transmission systems due to its simplicity?

Binary signals Signup and view all the answers

What does ASCII stand for in the context of coding?

American Standard Code for Information Interchange Signup and view all the answers

What range of quantity does the 4-20 mA current loop signal represent?

20% to 100% Signup and view all the answers

What is the unit of measurement for voltage?

Volts Signup and view all the answers

What is the unit of measurement for resistance?

Ohms Signup and view all the answers

What does Ohm's Law state?

$V = I \times R$ Signup and view all the answers

What are Capacitive and Inductive reactance dependent on?

Frequency of change Signup and view all the answers

What is the unit of measurement for current?

Amps Signup and view all the answers

What is Impedance measured in?

Ohms Signup and view all the answers

Which character encoding scheme uses 8 bits per character for error detection?

IBM 4 of 8 Code Signup and view all the answers

How many characters out of the 256 available were used for error detection in the IBM 4 of 8 Code?

70 Signup and view all the answers

Which bit is used to differentiate uppercase and lowercase letters in ASCII?

Bit 5 Signup and view all the answers

Which character encoding scheme was designed in the 1960s and is widely used today?

ASCII Signup and view all the answers

What type of computers used ASCII for transmission in the early days of computing?

PCs and other devices Signup and view all the answers

Which bit combination identifies control characters in ASCII?

(1,0) Signup and view all the answers

What does EBCDIC use for error detection?

CRCC Signup and view all the answers

Which character encoding scheme was developed by IBM in the early 1960s and uses 8 bits per character?

IBM 4 of 8 Code Signup and view all the answers

What is the most significant bit position for differentiating uppercase and lowercase letters in ASCII?

B5 Signup and view all the answers

Which character encoding scheme does not use letter frequencies?

ASCII Signup and view all the answers

What type of computers used EBCDIC in the early days of computing?

Mainframe computers Signup and view all the answers

Which topology involves a master station with slave stations, or peers?

Multi-drop Signup and view all the answers

In which communication mode does communication occur only in one direction, never in the opposite?

Simplex Signup and view all the answers

Which transmission mode uses one channel, every bit following one after the other?

Serial transmission Signup and view all the answers

What is the primary challenge encountered by parallel transmission?

Difficulty in maintaining data reception over distance Signup and view all the answers

Which term is a more descriptive alternative to 'simplex' in the context of communication modes?

Unidirectional Signup and view all the answers

Study Notes

Voltage is the electrical potential difference that enables work to be done, measured in volts.
Current is the flow of electrical charge that performs work, measured in amperes or amps.
Resistance is the opposition a conductor offers to current, measured in ohms.
Ohm's Law states that the relationship between voltage, current, and resistance is Volts = Amperes x Ohms.
Capacitive and Inductive reactance are opposing forces that depend on the frequency of change.
Impedance is the opposition a conductor offers to a changing current value, measured in ohms.
American Standard Code for Information Interchange (ASCII) is a text coding that represents letters, numerals, and control actions.
ASCII was released by the U.S. government in 1963, and gradually gained acceptance due to its compatibility with various vendors.
Ethernet is a physical and signal standard that is gaining market share and acceptance in automation areas.
There are several digital communications standards used in process measurement and control, including EIA/TIA 232(F) and EIA/TIA 485(A).
The Electronic Industries Alliance (EIA) is an association of manufacturers that develops standards, and the Telecommunications Industry Association (TIA) is a subdivision of the EIA.
IBM developed the IBM 4 of 8 Code, a proprietary code that allowed error detection on a character-by-character basis in the late 1940s.
In 1963, the U.S. government released ASCII, a standard text coding, which gained widespread acceptance among vendors.
IBM also released an extended version of the 4 of 8 Code called EBCDIC, which used a cyclic redundancy check character for error detection instead of a parity bit and utilized all combinations of the 8-bit code.
EBCDIC was mathematically related to the 4 of 8 Code, but was incompatible with it and other proprietary codes.
ASCII's acceptance by the U.S. government led to its adoption by many vendors, eventually replacing proprietary codings.
The international standard for an industrial fieldbus, IEC 61158, defines eight different fieldbuses, four of which, including PROFIBUS PA and FOUNDATION Fieldbus, are primarily used in process control.
These fieldbuses are not necessarily compatible with each other, and no open, all-digital standard signal has been established as an alternative to the analog 4-20 mA signal.
Ethernet, while not a fieldbus itself, is gaining market share and acceptance in automation areas as a physical and signal standard.
Several digital communications standards are used in process measurement and control, such as EIA/TIA 232(F) and EIA/TIA 485(A).
These standards detail placing data on and removing it from the media, which is required for signaling via an electrical channel.
The IBM 4 of 8 Code, a proprietary code developed by IBM in the late 1940s, allowed for error detection on a character-by-character basis.
ASCII, a standard text coding released by the U.S. government in 1963, gained widespread acceptance among vendors due to its compatibility with various systems.
EBCDIC, an extended version of the 4 of 8 Code, was developed by IBM and utilized all combinations available to an 8-bit code by using a cyclic redundancy check character for error detection instead of a parity bit.
Proprietary codes were commonly used by manufacturers prior to the release of ASCII, but were incompatible with each other.
The EIA and TIA are associations of manufacturers that develop standards, with the TIA being a subdivision of the EIA.
The international standard for an industrial fieldbus, IEC 61158, defines eight different fieldbuses, four of which are primarily used in process control.
These fieldbuses are not necessarily compatible with each other, and no open, all-digital standard signal has been established as an alternative to the analog 4-20 mA signal.
Ethernet is a physical and signal standard that is gaining market share and acceptance in automation areas.
There are several digital communications standards, such as EIA/TIA 232(F) and EIA/TIA 485(A), used in process measurement and control.
These standards detail placing data on and removing it from the media, which is required for signaling via an electrical channel.
The IBM 4 of 8 Code, a proprietary code, was developed by IBM and allowed for error detection on a character-by-character basis.
ASCII, a standard text coding, was released by the U.S. government and gained widespread acceptance among vendors.
EBCDIC, an extension of the 4 of 8 Code, was developed by IBM and utilized all combinations available to an 8-bit code.
The EIA and TIA are associations of manufacturers that develop standards, with the TIA being a subdivision of the EIA.
The international standard for an industrial fieldbus, IEC 61158, defines eight different fieldbuses, four of which are primarily used in process control.
These fieldbuses are not necessarily compatible with each other, and no open, all-digital standard signal has been established as an alternative to the analog 4-20 mA signal.
Ethernet is a physical and signal standard that is gaining market share and acceptance in automation areas.
Several digital communications standards, such as EIA/TIA 232(F) and EIA/TIA 485(A), are used in process measurement and control.
These standards detail placing data on and removing it from the media, which is required for signaling via an electrical channel.
The IBM 4 of 8 Code, a proprietary code developed by IBM, utilized all combinations available to an 8-bit code, allowing for error detection on a character-by-character basis.
ASCII, a standard text coding, was released by the U.S. government and gained acceptance among vendors due to its compatibility with various systems.
EBCDIC, an extension of the 4 of 8 Code, utilized all combinations available to an 8-bit code, allowing for error detection through the use of a cyclic redundancy check character.
Proprietary codes, such as the IBM 4 of 8 Code, were commonly used by manufacturers prior to the release of ASCII.
The EIA and TIA are associations of manufacturers that develop standards, with the TIA being a subdivision of the EIA.
The international standard for an industrial fieldbus, IEC 61158, defines eight different fieldbuses, including PROFIBUS PA and FOUNDATION Fieldbus, which are primarily used in process control.
These fieldbuses are not necessarily compatible with each other, and no open, all-digital standard signal has been established as an alternative to the analog 4-20 mA signal.
Ethernet is a physical and signal standard that is gaining market share and acceptance in automation areas.
Several digital communications standards, such as EIA/TIA 232(F) and EIA/TIA 485(A), are used in process measurement and control.
These standards detail placing data on and removing it from the media, which is required for signaling via an electrical channel.
The IBM 4 of 8 Code, a proprietary code developed by IBM, utilized all combinations available to an 8-bit code, allowing for error detection on a character-by-character basis.
ASCII, a standard text coding, was released by the U.S. government and gained widespread acceptance among vendors due to its compatibility with various systems.
EBCDIC, an extension of the 4 of 8 Code, utilized all combinations available to an 8-bit code, allowing for error detection through the use of a cyclic redundancy check character.
Proprietary codes, such as the IBM 4 of 8 Code, were commonly used by manufacturers prior to the release of ASCII.
The EIA and TIA are associations of manufacturers that develop standards, with the TIA being a subdivision of the EIA.
The international standard for an industrial fieldbus, IEC 61158, defines eight different fieldbuses, including PROFIBUS PA and FOUNDATION Fieldbus, which are primarily used in process control.
These fieldbuses are not necessarily compatible with each other, and no open, all-digital standard signal has been established as an alternative to the analog 4-20 mA signal.
Ethernet is a physical and signal standard that is gaining market share and acceptance in
Data communications topologies are organized as point-to-point, multi-drop, or networked.
Point-to-point is a direct communication between two points, no ranking involved.
Multi-drop topology involves a master station with slave stations, or peers.
Networked topology consists of three or more stations connected by a common medium.
Modes in data communications are simplex, half-duplex, and duplex.
Simplex communication occurs only in one direction, never in the opposite.
Half-duplex communication allows for communication in either direction, but not at the same time.
Duplex communication enables simultaneous communication in both directions.
Serial transmission uses one channel, every bit following one after the other, allowing for a lower throughput compared to parallel transmission.
Parallel transmission utilizes multiple channels to transmit data and can transmit more data than serial transmission for a given message.
Parallel transmission encounters challenges such as increased equipment costs and difficulty in maintaining data reception over distance.
Cross-talk is a problem with parallel transmission that increases with signaling rate and makes obtaining a faster data rate challenging.
Serial and parallel transmission modes can be applied to point-to-point, multi-drop, and networked topologies.
The names "simplex" and "parallel" are sometimes confusing, and "unidirectional" or "full" are more descriptive alternatives.
There can be a difference between the hardware and software capabilities of a communication channel.
Names and definitions in data communications have evolved over time.

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Learn about the differences between parallel and serial data transmission with this quiz. Understand the reasons behind the varying timing periods required for transmitting data through these methods and their implications for data transmission outside of computer cabinets.

Parallel vs Serial Data Transmission

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