30 terms

Hardware and Software Presentation + Cloud Computing

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Terms in this set (...)

IT infrastructure
Provides a platform for supporting all information systems in the business
components of IT infrastructure
internet platforms
computer hardware
operating systems platforms
enterprise software applications
networking/telecommunication
consultants and system integrators
data management and storage
components of IT infrastructure that firms need to manage
computer hardware
computer software
data management technology
networking and telecommunications technology
tech drivers of IT infrastructure
Moore's law and microprocessing power
Law of Mass Digital Storage
Metcalfe's Law and network economics
Declining communication costs and the Internet
stages of IT infrastructure
General-purpose mainframe and minicomputer era: 1959 to present
1958: IBM first mainframes introduced
1965: less expensive DEC minicomputers introduced
Personal computer era: 1981 to present
1981: Introduction of IBM PC
Proliferation in 80s, 90s resulted in growth of personal software
Client/server era: 1983 to present
Desktop clients networked to servers, with processing work split between clients and servers
Client/server era: 1983 to present
Enterprise computing era: 1992 to present
Move toward integrating disparate networks, applications using Internet standards and enterprise applications
Cloud and mobile computing: 2000 to present
Cloud computing: computing power and software applications supplied over the Internet or other network (Fastest growing form of computing)
moore's law
observation that, over the history of computing hardware, the number of transistors in dense integrated circuit has doubled approximately every 2 years
Computing power doubles every 18 months
Nanotechnology: shrinks size of transistors to size comparable to size of a virus
Applies to microprocessors and RAM chips
law of mass digital storage
the amount of data being stored each year doubles, the world produces as much as 5 exabytes (10 raises to the 18th power) of unique information per year
network economies
Metcalfe's Law helps explain he mushrooming use of computers by showing that a network's value to a participants grow exponentially as the network takes on more members
As the number of members in a network grows linearly, the value of the entire system grows exponentially and theoretically continues to grow forever as members increase
declining communication costs
rapid decline in cost of communication and the exponential growth in the size of the Internet is a driving force that affects the IT infrastructure
More people have access to the Internet
As communication costs fall toward a very small number and approach zero, utilization of communication and computing facilities explodes
technology standards
growing agreement in the technology industry to use computing and communication standards. Technology standards unleash powerful economies of scale and result in price declines as manufacturers focus on the products built to a single standard. Without economies of scale, computing of any sort would be far more expensive than is currently the case
current trends in computer hardware platforms
the mobile digital platform
nanotech
grid computing
virtualization
cloud computing
autonomic computing
mobile digital platform
bases on the new handheld software like cell phones and tablet computers
grid computing
connects geographically remote computers into a single network to combine processing power and create virtual supercomputer; provides cost savings, speed, agility
cloud computing
a model of computing in which forms and individual obtain computing resources over the Internet. Growing really fast. Cloud infrastructure and software as a service
autonomic computing
Development of systems that can configure themselves, heal themselves (eg. Self-updating antivirus software)
virtualization
Allows single physical resources to act as multiple recourses (ie. Run multiple instances of OS)
Reduces hardware and power expenditures
Facilitates hardware centralization
green computing
The study and practice of designing, manufacturing, using, and disposing of computer, servers, and associated subsystems (such as monitors, printers, storage devices, and networking and communications systems - efficiently and effectively with minimal or no impact on the environment
current trends in software platforms
open source software
cloud computing
using cloud services
managing mobile platforms
open source software
Computer software with its source code made available with a license in which the copyright holder provides the rights to study, change, and distribute the software to anyone and for any purpose
advantages of cloud computing
scale and cost, encapsulated change management, next generation architectures, choice and agility
disadvantages
lock-in, reliability, lack of control, security
software as a service
the capability provided to the consumer is to use the provider's application running on a cloud infrastructure. The applications are accessible from various client devices through a thin client interface such as a web browser (cloud computing model)
platform as a service
the capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages and tools supported by the provider (cloud computing model)
infrastructures as a service
the capability provided to the consumer is to provision processing, storage, networks, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications (cloud computing model)
private cloud
the cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on premise or off premise (deployment model of cloud computing)
hybird cloud
the cloud infrastructure is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or propriety technology that enables data and application portability (deployment model of cloud computing)
community/vertical cloud
here the cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns (mission, security requirements, policy). It may be managed by the orgs or a third party and may exist of premise or off premise
public cloud
the cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services (deployment model of cloud computing)
drivers of cloud computing
The move from capital expenditures to operations expenditures
Cost
Agility
Scalability
challenges of cloud computing
Security, Available/outages, Privacy, Governance, Acceptance, Exit strategy, Provider lock-in, Portability