Infrastructure

5. Infrastructure#

Infrastructure is the technical foundation that lets systems run, connect, scale, and recover. This chapter covers core infrastructure, cloud services, connectivity, and operational reliability.

Video

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Learning Objectives

By the end of this chapter, you will be able to:

  1. Map the infrastructure dependencies of an organizational service.

  2. Compare cloud service models and the responsibilities retained by customers.

  3. Evaluate mobile, AI, and edge workloads in terms of capacity, control, cost, and continuity.

  4. Explain infrastructure governance, total cost, provider dependence, and recovery needs.

Concept Map

Glossary

#

Term

Explanation

1

IT infrastructure

The shared hardware, software, networks, facilities, and services that support information systems.

2

Hardware

Physical computing equipment such as servers, storage, laptops, mobile devices, and network devices.

3

Software

Programs and operating systems that direct hardware and support applications.

4

Server

A computer or service that provides resources, data, or processing to other devices.

5

Client

A device or application that requests services from a server.

6

Network

Connected devices and communication links that exchange data.

7

Internet

The global network of networks that uses standard protocols to connect systems.

8

Bandwidth

The amount of data a connection can carry in a given time.

9

Latency

The delay between a request and a response across a system or network.

10

Data center

A facility that houses servers, storage, networking, power, cooling, and operations support.

11

Virtualization

Software-based abstraction that lets one physical resource act like multiple virtual resources.

12

Cloud computing

On-demand access to computing resources delivered over a network with flexible scaling.

13

IaaS

Cloud infrastructure services such as virtual machines, storage, and networking.

14

PaaS

Cloud platform services that support application development and deployment.

15

SaaS

Complete software delivered as an online service rather than installed locally.

16

Edge computing

Processing data near where it is created or used to reduce delay or bandwidth needs.

17

Internet of Things

Networked physical objects with sensors, software, or connectivity.

18

Scalability

The ability of infrastructure to handle more users, transactions, data, or workload.

19

Reliability

The ability of infrastructure to perform correctly over time.

20

Disaster recovery

Plans and technical capabilities for restoring systems after major disruption.

Lecture Slides

Chapter 5 Slides

These lecture drafts follow the authored sections and aligned assignments.