9. What can you do with email that you can't do with mail.
With email you can send things instantaneously. Also, you can send however many pictures, music files, and even movies, that you want, free of charge
13. Netiquette
Netiquette is important because it is the new way to communicate. Every one uses it. Speaking on the internet today is like speaking face to face today. What you say online affects people's view of you. Also, through the last couple years, many people have been fired from their workplaces because of their lack of netiquette on the web.
5. Modems
A modem is necessary when connecting computers to networks through telephone lines. Modems convert digital signals into analog signals, and analog signals into digital signals.
11. Money is just another form of information
Money is just like any other piece of information. It is just bits on server. People exchange this information for other bits like music, or something real like a book. Because it is a piece of information, it can be transfered from many devices using communication technology such as Internet, or the telephone.
Thursday, March 17, 2011
Wednesday, March 16, 2011
DQ 2
the telephone, email, real-time teleconference, fax, or overnight mail service.
Each of these methods had an important role in communication today. People generally use the telephone as main means of communication today. It has the advantage of a person being able to heard another person instantly. But it also has the disadvantage of the users not being able to see each other.
And this is where real-time teleconference comes into play. This allows you to be able to see the other person. A disadvantage of this is that people such as sex offenders can abuse.
Fax and email are similar means of communication. They both allow typed messages to be sent. An advantage of fax, is that it allows a person to scan anything and send it. This is also true for email. A disadvantage is that fax requires a phone line. Email can be access from anything that can access internet.
Overnight Mail Service is an extremely useful service meant mainly for getting items from point A to point B as soon as possible. This advantage is slightly marred by the fact that this service is fairly expensive. Minimum prices are approximately thirty dollars.
Each of these methods had an important role in communication today. People generally use the telephone as main means of communication today. It has the advantage of a person being able to heard another person instantly. But it also has the disadvantage of the users not being able to see each other.
And this is where real-time teleconference comes into play. This allows you to be able to see the other person. A disadvantage of this is that people such as sex offenders can abuse.
Fax and email are similar means of communication. They both allow typed messages to be sent. An advantage of fax, is that it allows a person to scan anything and send it. This is also true for email. A disadvantage is that fax requires a phone line. Email can be access from anything that can access internet.
Overnight Mail Service is an extremely useful service meant mainly for getting items from point A to point B as soon as possible. This advantage is slightly marred by the fact that this service is fairly expensive. Minimum prices are approximately thirty dollars.
Monday, March 14, 2011
Pg. 262-272 RQ
6. Communication Softwares
TCP/IP- A protocol that controls information exchange for computers on the internet
2. Give three general reasons for the importance of computer networking
a. Hardware- People are able to share resourses for hardware which allows more efficiency in both performance and cost.
b. People- People are able to communicate with each over large distances, which saves a lot of time. It allows people to do things everyday, such as an online business meeting, which would otherwise be impossible.
c. Software- The Internet allows the sharing of software. In this way, people can sell their softwares online. This allows for a larger range of consumers for a business.
9. What are the differences between email and instant messaging systems?
An email is more of a 'letter'. One sends it, placing in it what they want, like a picture. The receiver then gets the letter the next time he/she checks their email/mail. An instant messenger is like talking to a person face to face. The other person has to be there (or online) and it is harder to transfer files, or show the person picture.
10. Potential problems with email and teleconferencing.
Viruses can be sent through email, which could cause a system failure.
Teleconferencing doesn't allow for the users to revise what they are going to share before they do so.
TCP/IP- A protocol that controls information exchange for computers on the internet
2. Give three general reasons for the importance of computer networking
a. Hardware- People are able to share resourses for hardware which allows more efficiency in both performance and cost.
b. People- People are able to communicate with each over large distances, which saves a lot of time. It allows people to do things everyday, such as an online business meeting, which would otherwise be impossible.
c. Software- The Internet allows the sharing of software. In this way, people can sell their softwares online. This allows for a larger range of consumers for a business.
9. What are the differences between email and instant messaging systems?
An email is more of a 'letter'. One sends it, placing in it what they want, like a picture. The receiver then gets the letter the next time he/she checks their email/mail. An instant messenger is like talking to a person face to face. The other person has to be there (or online) and it is harder to transfer files, or show the person picture.
10. Potential problems with email and teleconferencing.
Viruses can be sent through email, which could cause a system failure.
Teleconferencing doesn't allow for the users to revise what they are going to share before they do so.
Friday, March 11, 2011
Chapter 7 Beyond the Basics
Batch Processing: Users accumulate transactions and input them into the computer in large batches
Real-time Computing: Allows instant access to information
Data Mining: The discovery and extraction of hidden predictive information from large databases
Uses statistical methods and artificial intelligence technology.
HTML: The language used to construct most web page
XML: A newer, more powerful data description language. Its designed with industrial-strength database access in mind.
-Web database strategies revolve around directories.
-Directories are at the heart of many customer relationship management (CRM) systems—software systems for organizing and tracking information on customers.
Object Oriented Database
-Make database construction and usage more flexible
-Store software objects that contain procedures (or instructions) along with data
-Are often used in conjunction with object-oriented programming languages
-A database of images, containing a class for photos
-One instance of this class – one object for every photograph in the database
-Data associated with this object: photographer’s name, description of photo, copyright status, and the image itself
-One operation for the class – producing a thumbnail
This type of data base allows
-Easy manipulation of various types of data
-Saves time by reusing objects
-Associates actions with the data
Relational Databases
-Not good with unstructured data (audio, video clips)
-Will still be used in combination with object oriented databases – as hybrids
Multimedia Databases
-Serve as indexes for art, photographs, maps, video clips, and other media files
Natural Language Databases
-Allow users to ask for data using the same language used to address humans (natural language queries)
-Future databases will undoubtedly incorporate more artificial intelligence technology
-Database programs enable users to quickly and efficiently store, organize, retrieve, communicate, and manage large amounts of information.
-Database programs enable users to view data in a variety of ways, sort records in any order, and print reports, mailing labels, and other custom printouts.
-Database management systems (DBMSs) can work with several data sources at once, cross-referencing information among files when appropriate.
Real-time Computing: Allows instant access to information
Data Mining: The discovery and extraction of hidden predictive information from large databases
Uses statistical methods and artificial intelligence technology.
HTML: The language used to construct most web page
XML: A newer, more powerful data description language. Its designed with industrial-strength database access in mind.
-Web database strategies revolve around directories.
-Directories are at the heart of many customer relationship management (CRM) systems—software systems for organizing and tracking information on customers.
Object Oriented Database
-Make database construction and usage more flexible
-Store software objects that contain procedures (or instructions) along with data
-Are often used in conjunction with object-oriented programming languages
-A database of images, containing a class for photos
-One instance of this class – one object for every photograph in the database
-Data associated with this object: photographer’s name, description of photo, copyright status, and the image itself
-One operation for the class – producing a thumbnail
This type of data base allows
-Easy manipulation of various types of data
-Saves time by reusing objects
-Associates actions with the data
Relational Databases
-Not good with unstructured data (audio, video clips)
-Will still be used in combination with object oriented databases – as hybrids
Multimedia Databases
-Serve as indexes for art, photographs, maps, video clips, and other media files
Natural Language Databases
-Allow users to ask for data using the same language used to address humans (natural language queries)
-Future databases will undoubtedly incorporate more artificial intelligence technology
-Database programs enable users to quickly and efficiently store, organize, retrieve, communicate, and manage large amounts of information.
-Database programs enable users to view data in a variety of ways, sort records in any order, and print reports, mailing labels, and other custom printouts.
-Database management systems (DBMSs) can work with several data sources at once, cross-referencing information among files when appropriate.
Thursday, March 10, 2011
Pg. 237-245 RQ
1. What are the advantages of personal information management software over paper notebook organizers? What are the disadvantages?
Management software allows you to keep your information more organized. Also it takes up a lot less space.
A disadvantage is that a power outage, virus, etc. might cause you to lose your information.
2. Do we have a legal right to privacy? On what grounds?
Technically we do not have a right to privacy for everything we do on the internet. Information cannot be collected for those who are 12 and under. Also privacy of financial, eduction, and health records is a right. However, many other things do not require a company/business to hold back information.
3. Describe how record matching is used to obtain information about you. Give an example.
Record matching is used to obtain information about someone by entering one piece of information about that person, and have the software cross reference all the files they have for that piece of information. Then it pulls up all information that have something to do with it.
For example, someone enters my name, then the computer pulls up all the information that is attributed to the name.
4. What is the difference between a file mangaer and a DBMS?
A DBMS manipulates a large collection of files, often cross-referencing them. A file manager simply works with one file at a time.
4.
Management software allows you to keep your information more organized. Also it takes up a lot less space.
A disadvantage is that a power outage, virus, etc. might cause you to lose your information.
2. Do we have a legal right to privacy? On what grounds?
Technically we do not have a right to privacy for everything we do on the internet. Information cannot be collected for those who are 12 and under. Also privacy of financial, eduction, and health records is a right. However, many other things do not require a company/business to hold back information.
3. Describe how record matching is used to obtain information about you. Give an example.
Record matching is used to obtain information about someone by entering one piece of information about that person, and have the software cross reference all the files they have for that piece of information. Then it pulls up all information that have something to do with it.
For example, someone enters my name, then the computer pulls up all the information that is attributed to the name.
4. What is the difference between a file mangaer and a DBMS?
A DBMS manipulates a large collection of files, often cross-referencing them. A file manager simply works with one file at a time.
4.
Tuesday, March 8, 2011
Page 224-232 Review Questions
1.What does it mean to sort a data file?
To sort a data file means to arrange records in alphabetic or numeric order based on values in one or more fields.
2. What is a query?
A query is an information request. An example of a question that might be answered by a query is, who the author of a book is.
3. Describe the structure of a simple database.
A databases are made up of tables. These tables contain records which are composed up of fields.
4. Why are computers important in discussions of invasion of privacy?
Computers are important in discussions of invasion of privacy because of the information people can obtain from them. In todays world, people can look up personal details of another individual with ease on computer.
To sort a data file means to arrange records in alphabetic or numeric order based on values in one or more fields.
2. What is a query?
A query is an information request. An example of a question that might be answered by a query is, who the author of a book is.
3. Describe the structure of a simple database.
A databases are made up of tables. These tables contain records which are composed up of fields.
4. Why are computers important in discussions of invasion of privacy?
Computers are important in discussions of invasion of privacy because of the information people can obtain from them. In todays world, people can look up personal details of another individual with ease on computer.
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