Unit 1: Information Technology Systems
Master the architecture of modern IT systems—from components and networks to security, policies, and service management.
What is Unit 1 — Information Technology Systems?
The Information Technology Systems (Unit 1) module provides the technical foundation for the Extended Diploma in Information Technology, assessed through an external written examination.
Learners explore how hardware, software, networks, and data interact within organisations to deliver reliable digital services and support strategic objectives.
Success in this unit demonstrates readiness for advanced networking, cybersecurity, development, and infrastructure specialisms in Units 2–13.
Core Strategic Value
- •Systems Thinking: Understand end-to-end IT architectures in business environments.
- •Infrastructure Literacy: Compare servers, storage, cloud, and edge computing models.
- •Service Management: Apply ITIL-style concepts for support, incidents, and change control.
What You Will Study
This unit develops practical, industry-aligned competencies across 4 core learning modules:
1. Hardware, Software & System Architecture
Compare CPU, memory, storage, and peripheral specifications
Evaluate operating systems, utilities, and application software roles
Explain client-server, cloud, and virtualisation architectures
Assess performance, scalability, and upgrade pathways
2. Networks, Data & Connectivity
Describe LAN, WAN, wireless, and internet connectivity models
Explain IP addressing, DNS, and common protocol functions
Evaluate bandwidth, latency, and redundancy considerations
Review emerging trends including IoT and 5G integration
3. Security, Policies & Compliance
Identify threats including malware, phishing, and insider risk
Implement access control, encryption, and backup strategies
Interpret data protection, acceptable use, and compliance requirements
Develop incident response and business continuity outlines
4. External Exam Preparation & Application
Analyse case studies on IT system selection and lifecycle management
Evaluate cost, benefit, and risk in technology investment decisions
Practice Pearson external exam command words and structured responses
Relate theory to ICT Business School lab and industry scenarios
Structure & Parameters
Assessment Policies & Logistics
Submission Windows
Internal and external assessment deadlines follow Pearson BTEC session calendars. Confirm key dates with ICT Business School at enrollment.
Academic Integrity
All coursework and exam submissions must meet Pearson authenticity standards. Plagiarism checks and verification apply to every unit.
Learner Support
Access tutor feedback, assignment briefings, and resubmission guidance through our structured BTEC support pathway at ICT Business School.
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