Parallel Input and Output Flashcards
A method of sending several data signals simultaneously over a transmission link at one time.
PARALLEL COMMUNICATION
Characteristics of Parallel Communication
- High Speed Data Transfer
- Limited Cable Length
- Easy Installation
When to Use Parallel Communication
- Large Data needs to be transferred
- Data to be sent is time sensitive
- Data is required to be transferred quickly or in real time
EXAMPLES OF PARALLEL COMMUNICATION
- SCSI
- PCI
- ISA
- EISA
The process of sending or receiving data one bit at a time
SERIAL COMMUNICATION
Data moves in a half-paired approach, 1 byte or 1 character at a time. It sends the data in a constant current of bytes
Asynchronous
Communication
Characteristics of Asynchronous Transmission
- Each character is headed by a beginning bit and concluded with one or more end bits.
- There may be gaps or spaces in between characters.
Examples of Asynchronous Transmission
- Emails
- Forums
- Letters
- Radios
- Televisions
Data moves in a completely paired approach, in the form of chunks or frames
Synchronous Transmission
Characteristics of Synchronous Transmission
* There are _____ in between characters being sent
no spaces
Characteristics of Synchronous Transmission
* ____ is provided by modems or other devices at the end of the transmission.
Timing
Characteristics of Synchronous Transmission
* Special _____ characters goes before the data being sent
’syn’
Characteristics of Synchronous Transmission
* The syn characters are included between chunks of data for _________.
timing functions
Examples of Synchronous Transmission
- Chatrooms
- Video conferencing
- Telephonic conversations
- Face-to-face interactions
Characteristics of Synchronous Transmission
- There are no spaces in between characters being sent.
- Timing is provided by modems or other devices at the end of the transmission.
- Special ’syn’ characters goes before the data being sent.
- The syn characters are included between chunks of data for timing functions.
