COMM 226 Final questions with complete solutions.

COMM 226 Final questions with complete solutions


Moore's Law

The number of transistors per square inch on an integrated chip doubles every 18 months

3 Key Elements of MIS

- Processes
- Information Systems
- Information

Porter's 5 Forces

1. Competitive Rivalry
2. Threat of New Entrants
3. Bargaining Power of Suppliers
4. Bargaining Power of Buyers
5. Threat of Substitutions

Competitive Rivarly

- Intensity of competition
- Industry Growth Rate

Threat of New Entrants

- Barriers to entry
- Economies of Scale
- Brand Loyalty
- Capital Requirement

Bargaining Power of Suppliers

- Number of suppliers (the fewer suppliers the more power they have)
- Uniqueness of supplies

Bargaining Power of Buyers

, - Buyer volume (higher volume=more power)
- More similar products give buyers more power

Threat of Substitutes

- Availability (more=higher threat)

Porter's 4 Competitive Strategies

Personal Area Network (PAN)

- Devices connected around a single person
- Bluetooth

Local Area Network (LAN)

- Devices connected around a single site
- Ethernet, wifi

Wide Area Network (WAN)

- Devices connected between multiple sites
- Connects LANs

Internet

- Network of networks

Intranet

Private internet used exclusively within an organization

Three-Tier Architecture

A common way to organize and build software applications often used in web development
- User Tier
- Server Tier
- Database Tier

User Tier

Interface for users (Ex. browsers)

Server Tier

Contains the application's logic and processes

Database Tier