What is Fog Computing and How Fog Computing Works.
                     WHAT IS FOG COMPUTING? 
HOW FOG COMPUTING 
WORKS?
WHAT IS FOG COMPUTING?
• Fog computing is a decentralized computing infrastructure or process in which 
computing resources are located between the data source and the cloud or any other 
data center.
Source: stackpath.com
HOW DOES FOG 
COMPUTING WORK?
• Fog computing works by deploying fog nodes throughout your network. 
• Devices from controllers, switches, routers, and video cameras can act as fog nodes. 
• These fog nodes can then be deployed in target areas such as your office floor or 
within a vehicle. 
Source: stackpath.com
CLOUD COMPUTING VS. FOG 
COMPUTING 
• When an IoT device generates data this can then be analyzed via one of these nodes 
without having to be sent all the way back to the cloud. 
• The main difference between cloud computing and fog computing is that the former 
provides centralized access to resources whereas the latter provides a decentralized 
local access.
Source: www.itprc.com
TRANSPORTING DATA THROUGH 
FOG COMPUTING 
• Signals from IoT devices are wired to an automation controller which then executes a 
control system program to automate the devices.
• The control system program sends data through to an OPC server or protocol 
gateway.
Source: www.itprc.com
TRANSPORTING DATA THROUGH 
FOG COMPUTING CONT. 
• The data is then converted into a protocol that can be more easily understood by 
internet-based services.
• Finally, the data is sent to a fog node or IoT gateway which collects the data for 
further analysis. 
• This will filter the data and in some cases save it to hand over to the cloud later.
Source: www.itprc.com
FOG COMPUTING VS. EDGE 
COMPUTING
• Fog computing sends data down to the local area network (LAN) level of the network 
and processes it through the use of a fog node or IoT gateway.
• Edge computing sends data from an appliance straight into a device like a 
programmable automation controller.
Source: www.itprc.com
FOG COMPUTING AND 5G MOBILE 
COMPUTING
• The expected roll out of 5G mobile connections in 2018 and beyond could create 
more opportunity for fog computing.
• A fog computing architecture could be created among these stations that includes a 
centralized controller that manages applications running on this 5G network.
Source: networkworld.com
BENEFITS OF FOG COMPUTING
• Fog computing can create low-latency network connections between devices and 
analytics endpoints. 
• This architecture in turn reduces the amount of bandwidth needed compared to if that 
data had to be sent all the way back to a data center or cloud for processing. 
• It can also be used in scenarios where there is no bandwidth connection to send 
data, so it must be processed close to where it is created.
Source: networkworld.com
APPLICATIONS OF FOG COMPUTING
• Connected Cars: The advent of semi-autonomous and self-driving cars will only 
increase the already large amount of data vehicles create. 
• Smart cities and smart grids: Like connected cars, utility systems are increasingly 
using real-time data to more efficiently run systems. 
• Real-time analytics: Fog computing deployments can help facilitate the transfer of 
data between where its created and a variety of places where it needs to go.
Source: networkworld.com
HOW CAN YOUR BUSINESS BENEFIT FROM FOG 
COMPUTING?
• Increased business agility: It is evident that fog computing is cost-effective because it 
makes the production of revenue-generating products and services more efficient. 
• Privacy control: Fog computing facilitates better control of privacy because you can 
process and analyze sensitive data locally instead of sending it to a centralized cloud 
for analysis. 
Source: fingent.com