Ch 6 MIS

The elastic leasing of pooled conputer resources over the internet

The computing resources leased can be decreased/increased dynamically, programmatically, in a short span of time and that organization pay for just the resources that they use

Many different organizations use the same physical hardware, they share that hardware through virtualization

This principle says that the average cost of production decreases as the size of the operation increases

Collection of computers that communicate with one another over transmission lines or wirelessly

Connects computers that reside in a single geographical location on the premises of the company that operates the LAN

Connects computers at different geographic locations

Network of networks...

Connect LANs WANs and other internets

The collection of networks that you use when you send an email or access a web site

Private Internet used exclusively within an organization

A set of rules and data structures for organizing communication

Such LANs have fewer than a dozen or so computers and printers

Used for wired LAN connections/ specifies hardware characteristics

Conform to the 802.3 specification and allow for transmission at a rate of 10, 100, or 1000 Mbps

Designed for transmitting data over short distances, replacing cables.

3 important functions 1.

Provides you with a legitimate Internet address. 2. Serves as your gateway to the Internet 3. ISPs pay for the Internet

Operates on the same lines as voice telephones but operates so it doesn't interfere with voice telephone service

Type of WAN Provide high speed data transmission using cable tv lines

Move from one network to another

Large telecommunication providers

All data is tested equally

Internet address, a number that identifies a particular device

Identify a particular device on the public internet

Identify a particular device on a private network typically a LAN

Most common. Four decimal dotted notation

Longer format

Worldwide unique name that is affiliated with a public IP address

An address on the Internet.

Design of user computers and servers that consist of three categories or tiers.

Consists of computers, phones and other mobile devices that have browsers that request and process web pages

Computers that run web servers and process application programs

Consists of computers that run a DBMS that processes requests to retrieve and store data

Document that is coded in, usually html

Programs that run on a server tier computer and manage traffic by sending and receiving web pages to and from clients

Application program that runs on a server tier computer

According to the philosophy, all the interactions among computing devices are defined as services in a formal, standardized way

Protocol used between browsers and web servers

Used for email transmissions

Used to move files over the Internet

Provides hardware infrastructure and an operating system and application programs as well.

Vendors provide hosted computers, and operating system and possibly a DBMS

Cloud hosting of a bare server computer or data storage

System of hardware and software that stores user data in many different geographical locations and makes those data available on demand

Used the Internet to create the appearance of private, secure connections Connection is called a tunnel

Cloud owned and operated by an organization for its own benefit

Subset of a public cloud that has a highly restricted, secure access.