Serial communication transmits data one bit at a time in a sequential manner and is best for long-distance communication, while parallel communication conveys multiple bits simultaneously within short-range connections like integrated circuits. Bluetooth uses a combination of serial communication to transfer data wirelessly and parallel communication for data authentication and encryption through parallel key generation.

1. Prof. Neeraj Bhargava
Pramod Singh Rathore
Department of Computer Science
School of Engineering & System Sciences,
MDS, University Ajmer, Rajasthan, India
1

2. Digital
Communication
Serial
Communication
Parallel
Communication

3.  Transmits data one bit at a time
 Data transmit sequentially
 Simplest form of communication
 Best for long-distance communication
 Supporting Standards : RS-232C, RS-422A, RS-485

4.  Multiple binary digits (bits) convey simultaneously
 Short Range Communication
 Bits are send from multiple paths
 Uses : within integrated circuits, in peripheral buses, and in
memory devices such as RAM

5.  To Transfer data Securely, both serial and parallel
communication methods are used.
 Data is transferred serially over wireless link
 Authentication and security is done using key generation
parallely for encryption of data
Bluetooth
Serial
(Data Transfer)
Parallel
(Data
Authentication)

6. Thank You…!