PCC Learning Center · Tech Guides
Technology Explained in Plain English
Clear, practical explanations of the technology your business uses every day—without assuming you already speak IT.
Understand the Terms Behind Better Business Decisions
Technology discussions are harder when every answer introduces three more acronyms. These guides explain what common tools and concepts mean, why they matter, what they do not solve and which questions a business owner should ask next.
Security Basics
Understand the controls that protect business systems, devices, email and internet connections.
What Is a Firewall?
Learn how firewalls examine network traffic, what they can block and why they are only one part of business security.
What Is Email Filtering?
See how business email filters examine messages, links and attachments—and why no filter catches everything.
What Is Patch Management?
Understand why software updates must be identified, tested, deployed and verified instead of left to chance.
What Is Microsoft Entra ID?
Learn how Microsoft Entra ID manages business identities, verifies sign-ins and applies access rules across Microsoft 365 and connected applications.
What Is Single Sign-On (SSO)?
Learn how one managed business identity can connect employees to approved applications and work alongside MFA.
What Are Passkeys?
Learn how passkeys replace passwords, resist phishing and what businesses should plan for enrollment, recovery and offboarding.
What Is Endpoint Detection and Response (EDR)?
Understand how EDR observes device activity, detects suspicious behavior and supports investigation and response.
What Is Multi-Factor Authentication?
See how MFA protects business accounts even when an employee’s password has been stolen or compromised.
Conditional Access for Small Business
Learn how sign-in rules can require stronger verification, trusted devices or other safeguards before granting access.
IT Operations
Learn how essential systems and service models support reliable day-to-day work.
What Is DNS?
Learn how DNS directs computers to websites and services—and why a DNS problem can make everything look broken.
What Is a VPN?
Learn how a VPN creates an encrypted connection, what it protects and what businesses should verify before allowing remote access.
What Is Technical Debt?
See how short-term technology decisions create future cost, complexity and risk if they are never revisited.
What Is a Managed Service Provider?
Understand how managed IT differs from break/fix support and an internal IT department.
AI and Emerging Technology
Build a practical understanding of new technology without getting lost in hype.
What Is a Deepfake?
Learn how AI-generated audio, video and images can imitate real people and create new fraud and verification risks.
Have a Technology Question We Should Explain?
If a technology term or business decision is unclear, ask us. Your question may become the next PCC Tech Guide.