Key Concepts
- 1What are the three service models of cloud computing?
- 2What is the Internet of Things (IoT) and give three examples?
- 3What is the difference between Augmented Reality (AR) and Virtual Reality (VR)?
Important Formulas & Facts
IaaS (Infrastructure as a Service) — provides virtualized servers, storage, networking (e.g., Amazon EC2). PaaS (Platform as a Service) — provides a development platform (e.g., Google App Engine). SaaS (Software as a Service) — provides ready-to-use software (e.g., Gmail, Google Docs).
IoT is a network of physical devices embedded with sensors and internet connectivity that collect and exchange data. Examples: (1) Smart thermostat, (2) Fitness band tracking heart rate, (3) Smart refrigerator monitoring food inventory.
AR overlays digital content onto the real-world view, enhancing reality — example: Pokemon Go. VR creates a completely immersive digital environment replacing the real world, requiring a headset — example: VR gaming. AR enhances reality; VR replaces it.
Must-Know Questions
Q1What is Artificial Intelligence (AI)?
Artificial Intelligence is the simulation of human intelligence processes by computer systems, enabling machines to perform tasks that normally require human intelligence.
Q2Machine Learning (ML) is a subset of AI that:
Machine Learning enables computers to learn and improve from experience (data) without being explicitly programmed for every task.
Q3What is Natural Language Processing (NLP)?
NLP is a branch of AI that enables computers to understand, interpret, and generate human language. Applications include voice assistants, chatbots, and language translation.
Q4Big Data refers to:
Big Data refers to extremely large datasets characterized by 3Vs: Volume (huge amount), Velocity (generated at high speed), and Variety (different formats).
Q5The Internet of Things (IoT) refers to:
IoT refers to the network of physical devices embedded with sensors, software, and connectivity that enables them to collect and exchange data over the internet.
Practice Emerging Trends
Reinforce what you just revised with practice questions