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ICT 110: IT for Business

Comprehensive Revision Session

Covering Units I to VI

Why are we here today?

Based on your feedback, we are diving deep into the topics YOU found most challenging!
  • 🎯 Clarifying "deceptively simple" concepts.
  • 📊 Visualizing complex systems (ERP, Networks).
  • 🛠️ Mastering the tools for business application.
  • ⚡ Bridging the gap between theory and practical impact.

Unit I: IT as a Strategic Driver

IT is the "Central Nervous System" of a business.

graph TD A["Business Strategy"] --> B{"IT Infrastructure"} B --> C["Operational Efficiency"] B --> D["Business Effectiveness"] B --> E["Strategic Innovation"] C --> F["Automation & Cost Reduction"] D --> G["Better Decision Making"] E --> H["New Business Models (e.g. eSewa)"]

Unit I: IT Across Functions

💰 Finance & HR

  • ERP: Integrated financial "source of truth."
  • HRIS/ATS: Managing talent from "hire to retire."

📦 Ops & Marketing

  • SCM: Tracking products (e.g., Daraz Express).
  • CRM: 360-degree view of the customer.

Unit II: Hardware - Advanced Input

Moving beyond Mouse & Keyboard:

  • BCI: Brain-Computer Interface (Direct thought control).
  • Haptics: Tactile feedback (Gloves, Medical sims).
  • Biometrics: Fingerprint, Iris, Face (Security).
BCI

Unit II: Hardware - Specialized Storage

Storage Pyramid: Speed vs. Capacity
  • SSD: Flash-based, blazing fast, but pricier.
  • HDD: Mechanical, great for mass data archiving.
  • NAS/SAN: Network-attached storage for team collaboration and enterprise scale.
Storage Devices

Unit III: Software Integration

The "Glue" of the Enterprise.

graph LR ERP(("ERP System")) --- CRM["Customer Data"] ERP --- SCM["Supply Chain"] ERP --- HRM["Human Resources"] ERP --- FIN["Finance/Accounts"] classDef highlight fill:#e8f4f8,stroke:#006ba1,stroke-width:2px; class ERP highlight;
Recall: ERP breaks down "Data Silos" so every department sees the same numbers.

Unit III: Licenses & Categories

Proprietary

Microsoft Office, SAP. Paid, closed source.

Open Source

Linux, LibreOffice. Free to use, modify, redistribute.

SaaS

Google Workspace, Salesforce. Subscription, cloud-based.

Unit IV: Networks - IP Addressing

How devices find each other on the "Information Highway."

IPv4 (The Old Standard)

  • 192.168.1.1
  • 32-bit (4 Billion addresses)
  • Addresses are running out!

IPv6 (The Future)

  • 2001:0db8:85a3...
  • 128-bit (Virtually infinite)
  • Better security & speed.

Unit IV: Network Security & Topologies

graph LR subgraph "Star Topology" Center["Switch/Hub"] --- D1["PC 1"] Center --- D2["PC 2"] Center --- D3["PC 3"] end FW["Firewall"] --- Center Internet(("Internet")) --- FW
Firewalls: Act as security guards, filtering coming and going traffic based on rules.

Unit V: DBMS Foundations

Why do we use Relational Databases?

  • Structured Data: Organized into tables with rows & columns.
  • Data Integrity: Prevents duplicates and maintains relationships.
  • SQL: The standard language for "talking" to the database.

Unit V: The Relational Model

erDiagram CUSTOMER ||--o{ ORDER : places ORDER ||--|{ LINE_ITEM : contains PRODUCT ||--o{ LINE_ITEM : included_in CUSTOMER { string name string email } ORDER { int orderNumber date date }

Unit VI: Data Analysis & Tools

Turning Raw Data into Decisions.
  • Spreadsheets (Excel/Sheets): Fast calculations & basic charts.
  • Power BI / Tableau: Advanced dashboards & interactive visual storytelling.
  • Collaboration Tools: Google Workspace & Teams for real-time collective intelligence.

Unit VI: Business Scenarios

How do we extract value?

stateDiagram-v2 [*] --> RawData : Data Extraction RawData --> CleanData : Processing CleanData --> Analysis : Formulas/SQL Analysis --> Insight : Visualization Insight --> Action : Business Decision

Revision Complete!

"The best way to predict the future is to create it." - Peter Drucker

Now, go through the detailed notes linked in the blog post!



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