?s for after movie.

1. Name 3 networking sites. How do they allow users to participate?

- Twitter: they allow users to write something, and then send to everyone they knoe and those people then send it to the people they know, etc.

-youtube: people can post themselves asking a politican a question, or even share their opinions.

-blogger. People can blog what their opinions are, whats going on on their mind, etc.

2. Explain the impact of these networking sites in three different areas.

=-Education: Everyone, when coming to research, have to use the internet and type up their work.

-Business: In order for businesses to be found and successfyl, they have to have a facebook, twitter, etc. so that poeple can see them.

-Entertainment:one may easily find entertainment from youtube, facebook, etc. instead of going off far.

3. Consider the advantages and disadvantages of networking as pertaining to 3 social/ethical issues.
Advantages:
Equality of Access
Authenticity
control
Disadvantages:
lack of Privacy & Anonymity
lack of Security
lack of Integrity.

Key Terms Chapter 6/8

-network: A computer system that links two or more computers.

-wireless network: A network which a node has tiny radio or infrared transmitter connected to its network port so it can send and receive data through the air rather than through cables.

-Ethernet: A popular network architecture developed in 1976 at Xerox.

-Wi-Fi: A popular wireless LAN technology that allows multiple computers to connect to a LAN through a base station up to 150 feet away. Often referred to as 802.11 b.

-wireless access point: A communication device, typically connected to a wired network that is used to create a wireless network.

-LAN: local area network: Multiple personal computers connected on a network.

-MAN: metropolitan area network. A service that links two or more LANs within a city.

-WAN: wide area network. a network that extends over a long distance. Each network site is anode on the network.

-node: Each computer and shared peripheral on a local-area connections.

-routers: programs or devices that decide how to route internet transmission.
fiber-optic cable: High-capacity cable that uses light waves to carry information at blinding speeds.

-client: Client programs in desktop computers send information requests through a network to server databases on mainframes, minicomputers, or desktop computers; their servers process queries and send their requested data back to the client.

-host: The name of the host computer, network, or ISP address where the user receives email, contained in the part of an Internet email; address that comes after the at sign (@)

server;

A computer especially designed to provide software and other resources to other computers over a network.

access:

Physical proximity to a person, or knowledge about that person, a common theme in privacy discussions.

access permissions: Features that control access to shared resources in Windows XP Professional.

spam: internet junk mail.

phishing:

The use of a deceptive email message or Web site to lure a person into divulging credit card numbers or other sensitive information.

login:

Connected to a computer system or network.

password:

The most common security tools used to restrict access to computer systems

firewall: a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers; commonly used on local area networks that are connected to the internet

VPN:(virtual private network)

A network that uses encryption software to create secure “tunnels” through the public Internet or between intranets; a method an organization can use to set up an extranet.

sysadmin: A system administrator, systems administrator, or sysadmin, is a person employed to maintain and operate a computer system and/or network

nodes:

Each computer and shared peripheral on a local-area network.

work station:

A high-end desktop computer with massive computing power, though less expensive than a minicomputer. Workstations are the most powerful of the desktop computers.

UPS: (uninterrupted power supply).

A hardware device that protects computers from data loss during power failures.

EDI: (electronic data interchange).

A set of specifications for conducting basic business transactions over private networks.

blogs:

Short for Web log, a personal Web page that often carries diary-like entries or political commentaries. Blogs are fast proliferating as new software allows users to create Web pages without having to learn the technical details of HTML and Web authoring.

wiki:

A Web site that lets anyone with access to a Web browser to modify its pages. The best-known example is Wikipedia.

asynchronous communication:

Delayed communication, such as that used for newsgroups and mailing lists, where the sender and the recipients don’t have to be logged in at the same time

real-time communication: chat room, IM
bps: Internet communication that enables you to communicate with other users who are logged on at the same time.

GPS:

A defense department system with 24 satellites that can pinpoint any location on the Earth.

Internet telephony:

A combination of software and hardware technology that enables the Internet to, in effect, serve as a telephone network. Internet telephony systems can use standard telephones, computers, or both to send and receive voice messages.

, VoIP:

protocol that allows the Internet to be used to make voice telephone calls.

, video teleconference:

Face-to-face communication over long distances using video and computer technology.

voice mail:

A telephone-based messaging system with many of the features of an email system.

NOS:

Server operating system software for a local-area network

Discussion ?s in text book

1.
Carrying flash memory device--
Pros:

• easier to access info
• faster to use

Cons:

• stolen

Carrying private PC--
Pros:

• safer

Cons:

• stolen and unprotected.

2. I think that its better to keep a flash memory wit you. This is because its a lot more private and only you can access it. Unless if stolen.

Review ?s

1- define biometrics:

A method of identifying individuals based on biological properties, where the technology scans a body part to match the information with data previously stored in the system

2- list and explain a use of a biometrics system in each area of impact.

Businesses and governments are impacted by biometrics.They buy them and use for employers and security reasons.

3- explain how one type of biometric system works.

Biometric works from when technolgy scans a body part to match a previously saved data already stored. For example, finger scan, retina scan and vocie recognition

3- who approves/disapproves of the use of biometrics?

Approves: DISNEY! banks, gas stations, law enforcements.

4- explain 3 concerns regarding the use of the biometrics system.

3 concerns: -total lack of privacy!!! -lack of policy standards -not interchangeable

5- explain 3 advantages to using the biometrics system.

3 advantages: -good for security -convenient for customers -accurate to what the employer needs.

6- what is the benefit of using biometrics as shown in the last clip?

article on biometric and review ?s 7-9

Article:
http://edition.cnn.com/2008/BUSINESS/08/06/biometrics.airports/index.html

Review ?s

7. The advantages of nonimpact printers is that they are extremly fast, durable, and reliable. the only disadvantage may be that their ink costs a lot.
8.
9.Difference between sequential-access and random-access is that sequential-access memory can only get memory in the order it was recorded. As for random-access is used in everyday computing. Sequential memory is used for backing up data or other operations that up less time.

article concerning peripheral

http://www.nydailynews.com/topics/Computer+and+Peripheral+Equipment+Manufacturing

Review ?s PAGE 97 #5 and 6

5. What are the advantages of CRT monitors over LCD's?

The advantages of CRT monitors over LCD's are that theyre inexpensive and they produce high-qualityimages at a variety of resolutions.

6.Name at least two hardware devices that use LCDs because using a CRT would be impractical.

Two hardware devices:

-laptops

-projectors

-camcorder

-camera

-cell phones