Question

Explain parallel and wireless protocols.

Answer 1

Parallel protocols:

PCI bus (Peripheral Components Interconnect):

• PCI stands for Peripheral Components Interconnect.
  
• PCI bus is used as a communication line to transmit signals and data from your computer system to peripheral devices attached to the computer system.
  
• PCI bus is high-performance bus originated at Intel in the early 1990's.
  
• Interconnects chips, expansion boards, processor memory subsystems.
  
• Data transfer rate of 127.2 to 508.6 Mbits/s and 32 bit addressing later extended to 64 bit while maintaining compatibility with 32-bit schemes.
  
• Synchronous bus architecture.
  
• Multiplexed data/address lines.
  
• A Peripheral Component Interconnect Bus connects the CPU and expansion boards such as modem cards, network cards, and sound cards.
• The PCI bus is a parallel protocol.
• PCI bus is designed to economically meet the I/O requirements of modern systems.
• It has the ability to function with a 64-bit data bus.
  
• PCI bus is designed to support the variety of microprocessor.
• PCI bus makes use of synchronous timings and centralized arbitration scheme.

ARM bus:

• ARM bus protocol is used internally by various IC design companies. 
• ARM bus is designed to interface with ARM line of processors. 
• ARM bus supports 32-bit data transfer and 32 bit addressing.
  

Wireless protocols:

IrDA:

• IrDA is Infrared Data Association. Used in wireless IR communications systems worldwide.
• IrDA is used in many electronics devices.
• IrDA is simple and low cost.
• IrDA is wireless protocol suite that supports short range point to point infrared data transmission.
• Created and promoted by Infrared Data Association (IrDA).
• Data transfer rate of 9.6 kbps and 4 Mbps.

Bluetooth:

• Bluetooth is used for wireless connectivity. 
• This is wireless protocol and based on a low-cost short-range radio link. 
• Both devices need Bluetooth equipped and should be in the range of 10 meters for establishing a connection.
  
• For Bluetooth, no line of sight is required.
• Bluetooth is used for exchanging data over short distances.
  
• Different versions of Bluetooth have different speeds.

IEEE 802.11:

• IEEE 802.11 is an IEEE proposed standard for wireless local area network (LANs). 
• IEEE 802.11 is a set of media access control and physical layer. 
• They are most widely used wireless computer networking standards. 
• They are created and maintain by IEEE.
  
• The standard and amendments provide the basis for wireless network products using the Wi-Fi brand.