IS1001 #2 Flashcards
what is the cloud symbol used for?
to represent the internet in flow charts
who described cloud computing as an approach to data storage?
Google CEO, Eric Schmidt
what does NIST stand for?
National Institute of Standards and Technology
what is cloud computing?
a model for enabling convenient. on demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction
having your data and/or software stored somewhere besides your personal computer and being able to get it through is called?
cloud computing
5 cloud characterisitcs?
- ON-demand self service
- broad network access
- Resource pooling
- rapid elasticity
- measured service
cloud service models?
cloud clients
SaaS (sofware as a service)
PaaS (platform)
IaaS (infrastructure)
SaaS
virtual desktop
games
communication
IaaS
virtual machines
network
machines servers
storage
PaaS
web server
database
development tools
cloud clients
web browser, mobile app
IaaS example?
amazon web services
google compute engine
SaaS examples
surveymonkey
dropbox
google apps
PaaS Examples
force.com
google app engine
3 challenges of Cloud computing?
- security and privacy
- limited control and flexibility
- Compliance/legal
what did Nick Szabo create?
bit gold
who created bitcoin
satoshi Nakamoto
what is a cryptocurency?
a medium of exchange using cryptography to secure transactions and to control the creation of additional units of currency
two classifications of cryptocurrency?
- subset of alternative currencies
- Subset of digital currencies
read attributes
- Digital
- Uses cryptography to secure transactions
- Uses cryptography to control creation of new units
- Decentralized control
○ Banking and economic systems are centralized - Rate of creation defined and public
○ Supply cannot be altered by fiat - Semi-anonymous
○ More like cash than standard digital banking
○ Your address is still given if you have goods delivered - Assumes mutually distrustful parties
Use of encryption
examples of cryptocurrency?
Bitcoin
Dogecoin
can yo purchase goods with cryptocurrencies in Russia?
NO
what did the US tax authorites rule about Bitcoin?
That it was property rather than currency for taxation purposes
why are we not completely digital?
- volatility
- switching cost
- Average users not tech savvy enough to protect assets
- network effect
- lack of regulation to ensure stability
where is the transaction information added online is ?
blockchain
how long does it take to generate a new link?
about 10min
what is a bitcoin>
a SHA-256 hash
where are bitcoin stored?
a file called wallet
what does the wallet hold?
1) each address bitcoins are sent and received from
2) password/private key known only to the user
what is mining?
The generation of new currency with a computationally intensive task
what impact do cryptocurrencies have?
- more difficult for governments to gather data on economic activity
- reduced consumer confidence in fiat currencies
- affects the ability of central banks to influence the price of credit for the economy
what are the benefits of cryptocurrencies?
- Avoid mismanagement by central banks handling fiat currency
- 24/7
- Lower transaction costs
- Community
- World currency
- Competition
what are the concerns?
- Unregulated person to person global economy will enable anonymous criminality
- High volatility of currencies
- Lack of consumer protection
- Environmental cost of mining is wasted energy
Internet of Things is?
- Exchange data
- Network connectivity
- Network of physical objects of things
- sofware, electronics
where can this be applied?
- health care
- smart cities
- automotive
- smart manufacturing
when was the internet of things concept discussed?
1980s
early examples of the IoT?
Coke machine ar CMU
Drivers of IoT Present
- Ubiquitous networks
- Connected computing
- Ubiquitous sensors
- Intelligence at the periphery of the network
- Analytics as a service
- Marketing automation
- Supply chain analytics
benefits of IoT?
- Tracking behavior for real-time marketing
- Enhanced situational awareness
- Sensor-driven decision analytics
- Process optimization
- Optimized resource consumption
- Instantaneous control and response in complex autonomous systems
Concerns of the IoT?
read week 8
