Zusammenfassung der Ressource
The Cloud
Anmerkungen:
- Companies lease their computer resources from cloud vendors instead of buying their own. Its much cheaper and information can be accessed from anywhere.
- Elastic
Anmerkungen:
- The vendors can add or remove resources depending on your needs. You only pay for what you use.
- Leasing
- IaaS Ex. EC2
- PaaS Ex. Azure
- SaaS Ex. iCloud
- Pooled
Anmerkungen:
- The same hardware and software can be shared by many clients. They need the resources at different times like April for accountants and September for universities.
- The Internet
Anmerkungen:
- Initiated by the Department of Defense in 1969. First network is ArpaNet. Later CSNet, BitNet, AOL, etc. In 1989 they could connect and form the Internet.
- IP Address
- TCP/IP
- Protocols
- FTP
- HTTP
- SMTP
- Network of Networks
- Network
- PAN
- LAN
- LAN Device
- Router
- Switch
- Access Point
- Protocols
- Ethernet/IEEE 802.3
- WiFi/IEEE 802.11
- WAN
- ICANN
Anmerkungen:
- The Internet Corporation for Assigned Names and Numbers i
- Domain Names
Anmerkungen:
- Kean.edu or amazon.com are domain names
- URL
Anmerkungen:
- http://www.kean.edu/~tabraham
- Services
- WWW
Anmerkungen:
- Invented by Tim Berners-Lee in 1991. The dot com boom used the web to sell stuff.
- Web Servers
- 3 Tiers
- User
- Server
- Database
- HTML/XML
- Browsers
- Email
- Streaming
- Computer Resources
- Hardware
- Storage
- Servers
- Software
- Application
- System
- Virtualization
- Database
- People and Procedures