Definition
A handshake can refer to two primary concepts:
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Personal Greeting: A handshake is a conventional form of physical greeting between two individuals. It involves grasping each other’s hands and typically moving them up and down to express mutual respect, agreement, or acknowledgment.
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Computer Communication: A handshake in computing is the exchange of signals between computers or between a computer and a peripheral device to establish communication. During this process, the devices greet and identify each other, determine the protocols to be used, synchronize their operations, and establish a communication link for data transfer.
Examples
Personal Handshake
- Business Meeting: During a business meeting, representatives from two companies may shake hands at the beginning or end as a gesture of professionalism and agreement.
- Social Greeting: In many cultures, individuals shake hands when they meet for the first time or when they greet friends and colleagues.
Computer Handshake
- Modem Communication: When a computer modem connects to an Internet Service Provider (ISP), a handshake occurs during which the modem and ISP exchange signaling information to agree on transmission protocols.
- Printer Communication: When a computer sends a print job to a printer, a handshake ensures that the printer is ready to receive the data and confirms the format and protocols to be used for printing.
Frequently Asked Questions (FAQs)
What is the purpose of a handshake in a computing context?
The purpose of a handshake in computing is to establish a communication link between devices, synchronize their operations, and ensure both devices agree on the protocols and data formats to be used for data transfer. This process helps prevent data corruption and enhances communication reliability.
How does a handshake work between a computer and a peripheral device?
During a handshake between a computer and a peripheral device, such as a printer, the devices exchange initial signals to recognize each other. They then negotiate the data transfer parameters, such as speed and protocol, and confirm that they are ready for data exchange, ensuring reliable communication.
Can a handshake occur digitally, without physical interaction?
Yes, in the context of computer communication, a handshake is entirely a digital process involving electronic signals and protocols. It does not involve any physical interaction between individuals.
Are handshakes necessary for all types of computer communications?
Handshakes are not necessary for all types of computer communications. They are primarily used in situations where establishing a reliable connection and data format between two devices is critical. For example, handshakes are essential in modem communication, printer communication, and other serial communication protocols.
What are common protocols that use handshakes?
Common protocols that use handshakes include TCP (Transmission Control Protocol), USB (Universal Serial Bus), Bluetooth, and various modem communication protocols like PPP (Point-to-Point Protocol).
Related Terms
- Protocol: A set of rules or standards that devices follow to communicate with each other effectively.
- Data Transfer: The process of moving data from one place to another, typically from one device to another.
- Synchronization: The coordination of events to operate a system in unison; in computing, it refers to the timely coordination of data exchange between devices.
- Modem: A device that modulates and demodulates digital data for transmission over telephone lines or cable systems.
- Peripheral Device: An external device connected to a computer, such as a printer, scanner, or external drive.
Online References
Suggested Books for Further Studies
- Networking All-in-One For Dummies by Doug Lowe
- Data Communications and Networking by Behrouz A. Forouzan
- Computer Networks by Andrew S. Tanenbaum and David J. Wetherall
- The Elements of Networking Style by M. A. Padlipsky
Fundamentals of Handshake: Communications Basics Quiz
Thank you for studying the concept of handshakes and enhancing your communication knowledge with our detailed explanations and quiz questions!
