Chapter 5, Information tech
Optical disk
CD-ROM,CD-RW,DVD,DVD-RW...
Nanotubes
tiny tubes about 10,000 times thinner than a human hair. They consist of rolled up sheets of carbon hexagons, have potential use in minuscule wires or in ulta small electronic devices. they are also very powerful conductors
Cloud computing
A model of computing in which firms and individuals obtain computing resources over the internet
Scalability
Ability of systems to expand to serve large numbers of users without breaking down
Multi-tiered client/server architecture
Balances load of networks over several levels of servers
Service oriented architecture (SOA)
Collection of services used to build an organizations software systems
Storage networking
Connect multiple storage devices on a separate high-speed network dedicated to storage
Autonomic computing
Development of systems that can configure themselves, heal themselves; for example, self-updating antivirus software
Output Devices
Display data after they have been processed
Client/server computing
Form of distributed computing. Splits process between "clients" and "servers"
Input Devices
Gather data and convert them into electric form
Magnetic disks include:
Hard drives, USB flashdrives, Solid state drives
Multicore processor
Integrated circuit with two or more processors
Mainframes
Large compacity, high-performance computer that can process large amounts off data very rapidly
Supercomputers
More sophisticated computeer used for tasks requiring extremely rapid and complex calculations with thousands of variables, millions of measurements
Consumerization of IT
New technology that emerges in consumer market spreads into business organizations
Java
OS-independent object-oriented programming language
Hypertext markup language (HTML)
Page description language for specifying how elements are placed on a web page for creating links to other pages and objects
Grid Computing
Power of geographically remote computers connected into single network to act as a "virtual supercomputer"
Green computing
Practices and technologies for designing, making,using, and disposing of computer hardware to reduce environmental inpact
Capacity Planning
Process of predicting when hardware systems become saturated
Virtualization
Process of presenting a set of computing resources so they can be accessed in ways that are unrestricted by physical configuration or geographic location
IT infrasture
Provides platform for supporting all information systems in the business
Web services
Software components that exchange information with one another using universal web communication standards and languages
Servers
Support computer network, sharing files and resources
Total cost of ownership
Used to analyze direct and indirect costs to help determine the actual cost of owning a specific technology
Nanotechnology
Uses individual atoms and molecules to create computer chips and other devices thousands of times smaller than current technologies
Quantum Computing
Uses principles of quantum physics to represent data and perform operations on the data
Visual basic
Visual programming language for Microsoft windows application
