Social computing and networking

Disruptive technology

innovations that revolutionise our lives and industries through efficiency and accessibility.

Examples of disruptive technologies

Ai, streaming service, blockchain

Everyday computing

ubiquitous and routine use of digital devices.

What are the effects of disruptive technology on individuals

enhanced productivity, new jobs, job displacement, work-life balance change, improved accessibility, enhanced quality of life, privacy and security concerns

Graph Theory

The mathematical study of nodes and edges used to model relationships.

Node

An individual or entity represented as a point in a social network.

Edge

The connection or relationship line linking two nodes together.

Structural Analysis

The process of identifying important influencers and communities within a network.

Information Diffusion

The modeling of how information spreads and flows through a social network.

Recommendation System

A feature that suggests new connections or content based on existing links.

Social Influence

The study of how users affect each other's behavior within the network.

Define web apps

apps that can be accessed through a web browser and an internet connection

Define dedicated apps

apps that are downloaded onto the device

Pros of web apps

universal accessibility, consistent UX across devices,lightweight

Cons of web apps

lack of advanced features, can be slower due to internet connection requirement, mostly relies on subscriptions and ads for monetisation

Pros of dedicated apps

convenient and personalised experience through advanced features, much faster, integrates with other apps,

Internet of things(Iot)

a network of devices with software and sensors to collect and exchange data

Internet of Me(IoMe)

a shift to personalised experience with IoT

How has the development of wireless connectivity helped the adoption of IoT?

the development of wireless communication allows devices to communicate.

How has the development of analytics and machine learning helped the adoption of IoT?

enabled the processing of vast amounts of data to enhance UX

How has the development of security and privacy helped the adoption of IoT?

enabled the secure transfer and storage of sensitive data

List different impact of IoT for people

increased quality of life, improved health, enhanced productivity, increased data privacy concerns, changes in employment

List different impacts on enterprises from IOT

improved efficiency through the use of real-time data, enhanced customer satisfaction, increased data management challenges,

List impacts of IoT on hardware

increase in demand for processing power, changes in network architecture, greater focus on energy efficiency, greater need for security

Purpose of HTTP

Hypertext Transfer Protocol provides the rules for transmitting web pages and resources between a client and a server over the internet.

Purpose of SMTP

provides the standard for sending and routing email messages between servers and clients.

Purpose of TCP/IP

The Transmission Control Protocol/Internet Protocol provides the fundamental suite of rules for addressing, routing, and delivering data packets across networks to ensure reliable communication.

External hard drives

A physical storage device connected to a computer to create offline copies of data for recovery.

Network-attached storage (NAS)

A dedicated file storage device connected to a network that allows multiple users to store and retrieve data from a central location.

Cloud storage

A service that stores data on remote servers accessed via the internet, providing off-site backup without physical hardware.

Backup software

A program that automates the process of copying and archiving data to ensure regular and consistent backups.

List the characteristics of successful start ups using this format

Innovation,Customer Focus,felixible,Lean Approach,Entrepreneurial Mindset,Resilience

How has internet connectivity improved collaboration

,High-speed connectivity allows real-time communication and video conferencing from any location.

How has internet connectivity Improved productivity

,Faster download speeds and quick access to cloud applications allow data to be shared more efficiently

How has internet connectivity Reduced costs

,Remote work enabled by reliable connectivity reduces enterprise expenses on office rent and utilities.

How has internet connectivity Enhanced recruitment

Offering remote work options helps enterprises attract and retain top talent prioritizing flexibility.

Briefly discuss How internet connectivity has affected file sharing

larger files can be shared and accessed quickly and reliably, from any location. However, enterprises must ensure that files are not by unauthorised parties

How have developments in internet connectivity affected task delegation and monitoring?

has been streamlined through cloud based tools, availability of online communication regardless of location helps

List the benefits of digital workflows

improved collaboration, faster file transfers, reduced costs, more flexible

What is the benefit of Faster file transfers

improved collaboration, faster file transfers, reduced costs, more flexible

How does digital workflows Improve collaboration

Cloud-based platforms enable employees to access and share files from anywhere, facilitating teamwork across different departments and locations.

How do digital workflows provide Greater flexibility

Employees can access files from any location using various devices like desktops, laptops, tablets, and smartphones, supporting on-the-go productivity.

How do digital workflows provide Enhanced security

Enterprises can implement encryption, password protection, and access controls to ensure only authorized personnel access sensitive data, preventing breaches.

How do digital workflows Reduce costs

Cloud-based platforms eliminate the need for physical storage and hardware, saving money on servers and data centers while reducing environmental impact.

What is Capacity for data storage

The amount of storage capacity required to store an enterprise's data, varying based on volume and types of data, accommodating current needs and projected future growth.

What is Accessibility data storage

The ability to access data quickly and easily within the enterprise and remotely using various devices, ensuring authorized users get the data they need efficiently.

What is Location for data storage

The physical location of data storage, including on-premises solutions like servers or cloud-based storage, considering the geographic location of the data center.

What is Security for data storage requirements

The measures in place to ensure data is secure, including physical security (secure facilities) and cybersecurity (encryption, access controls).

List the 4 data storage factors for an enterprise

security, location, accessibility, capacity

Define cloud computing

the on demand delivery of computing resources

define Infrastructure as a service(IaaS)

provides access virtual hardware

define Platform as a service (PaaS)

a platform that allows customers to easily develop and manage applications, without having to configure the hardware

define Software as a service(SaaS)

the delivery of software application over the internet, typically over the internet.

IaaS Pros

Eliminates the upfront cost of physical hardware and scales resources instantly on demand.

IaaS Cons

Requires highly skilled internal IT staff to configure and leaves security management to the enterprise.

PaaS Pros

Speeds up application deployment and facilitates seamless collaboration among remote development teams.

PaaS Cons

Creates high risk of vendor lock-in and can cause integration issues with older legacy systems.

SaaS Pros

Requires no local software maintenance and offers predictable subscription-based budgeting for enterprises.

SaaS Cons

Provides minimal control over application features and introduces risks regarding data privacy and sovereignty.

Pros of Public Cloud

Cheap, easy to scale, and pay only for what you use.

Cons of Public Cloud

Less secure because data is stored with third parties.

Define Public Cloud

Services over the internet by third parties accessible from anywhere.

Pros of Private Cloud

Greater control, customisation, and robust security measures.

Cons of Private Cloud

More flexible but costs significantly more.

Define Private Cloud

A cloud model hosted on premise or through dedicated infrastructure being accessible only to the enterprise and providing more customisation

Pros of Hybrid Cloud

Balances scalability and control by mixing public and private elements.

Cons of Hybrid Cloud

Harder to manage than single cloud models.

Define Hybrid Cloud

A combination of public and private, allowing for accessibility and customisation

Pros of Non-Cloud Storage

Highest level of control and security with hardware on-site.

Cons of Non-Cloud Storage

High setup and running costs with low flexibility or scalability.

Define Non-Cloud Storage

Physically located within an organisation's premises and accessed via local network.

Characteristics of Non-Cloud Storage

Best for critical data or regulatory constraints requiring in-house control.

Define Cloud Storage

Provides accessible, cost-effective solutions for diverse business needs.

Define non-cloud storage

data storage systems located on premises, commonly accessed through the network

Pros of non-cloud storage

complete data control, max security and privacy,no ongoing fees

Cons of non -cloud storage

limited scalability, limited disaster recovery,constant maintenance

End point devices

devices that can connect to a network

Copper wires

Physical cables used in LANs to transmit data between devices.

Twisted pair

Two insulated copper wires twisted together to reduce interference.

Coaxial cable

A single copper conductor surrounded by insulation and a braided shield to reduce interference.

Fibre optic cables

Glass or plastic cables that use light to transmit data at high speeds over long distances.

Wireless transmission

Data sent over airwaves using radio, microwave, or infrared signals without physical cables.

Factors for choosing transmission media

Distance, speed, and interference levels determine which media is best.

Copper wires pros

Commonly available and effective for short-range data in Local Area Networks.

Copper wires cons

Prone to interference and signal loss over long distances.

Fibre optic cables pros

Offers high speeds with no signal loss or interference over long distances.

Fibre optic cables cons

Requires specialized equipment and is generally more expensive than copper.

Wireless transmission pros

Provides mobility and eliminates the need for physical cables.

Wireless transmission cons

Signal can be affected by interference and physical obstacles.

List the 3 factors for a transmission media

speed, interference and distance

Distance

The physical space between transmitting and receiving devices where increased length leads to weaker signal strength.

Topography

The natural layout of the physical environment, such as mountains or valleys, which can block or weaken signals.

Physical Barriers

Man-made structures like walls and buildings that obstruct or degrade data transmission signals.

Environmental Barriers

External conditions including weather, thunderstorms, solar flares, and electromagnetic interference that disrupt signal quality.

How does Distance impact the transmission of data in a network?

As the distance between devices increases, the signal strength decreases, potentially causing slower speeds or dropped connections.

How does Topography impact the transmission of data in a network?

Large natural features like mountains can completely block signals or force them to travel longer, less direct paths, weakening the data quality.

How does Physical Barriers impact the transmission of data in a network?

Dense objects like concrete walls or steel buildings absorb or reflect signals, significantly reducing their ability to pass through to the receiver.

How does Environmental Barriers impact the transmission of data in a network?

Events like thunderstorms, solar flares, or radio frequency interference introduce noise that weakens the signal and increases error rates.

How to improve data flow when using an antennae

use a larger antenna to improve signal strength, change the location and orientation to improve signal quality

Define traffic filtering

managing and regulating data flow to ensure only relevant data is transmitted to reduce network congestion and improve overall network performance