The discipline.
WHAT IT INCLUDES
- Hardware: the physical equipment
- Software: the programs running on it
- Networks: how systems communicate
- Data: what is stored and processed
- People: who use and operate it
- Processes: how work is done
WHY THAT LAST TWO MATTER
Most IT problems are not technical failures. They are process failures or communication failures.
WHAT AN IT FUNCTION DOES IN AN ORGANISATION
Provides the systems people need Keeps them working Protects them Changes them as requirements change Supports the people using them
WHAT THE MAIN ROLES ARE
- Support: helping users and resolving incidents
- Systems and infrastructure: servers, networks and platforms
- Applications: software the organisation uses or builds
Security Management and planning
WHERE MOST PEOPLE ENTER
Support, which touches everything and teaches the environment quickly.
WHAT TO LEARN FIRST
How hardware, operating systems and networks fit together.
WHY
Everything else builds on that.
