Ch 7 Review questions

1.Definitions
batch processing: accumalating transactions and feeding them into a computer in large batches
browse: to look around
centeralized database: a database housed in a mainframe computer accesible to only certian people
client: a end user
computered fields: a database containing formulas
data minning: the discovery and extraction of hidden information from large databases.
database: a collection of information stored in a computer
database management system: a program or system of programs which can manipulate data in large collections of files
dirty data: data record with spelling mistakes
distributed data: data sewen out across networks
export data:transmiting records from a dtatabase from one program to another
field:a chunk of information in a database
file manager: a program which enables useres to manipulate data
geographical information system: a specilaized database that combines tables of data with information and displays geographical data on maps
identity theft: when soemone steal your identity online
important data: data which has a sufficeint play
object oeriented data: data stored in software objects that contain certian procudures.
privacy: not having others go through what is rightfully yours.
query: an information request
real time: when a computer preforms a task imediatly
record: informatiuon relating to ones self
record machine: a machine which records data
report: a databsae printout that is an ordered list of selected records.
right to privacy: to have your own privacy and being able to maintain it
search: to look for soemthing through databases
sort: to have your information in your database in proper folders
SQL:structured query language
XML: its advantage is its backward compatibility with HTML

2. A file manager is a program which enables a user to manipulate data while database management system is a program which manipulated data in large quantaties. The pros of using a file manager is that you can do it yourself. Where as using a database management system also has its pos because you can edit a large amount of data all at once.

3. A database is a collection of files on your computer. The computer can access these files easliy and the database is usually used as abackup for all information. This way your information never gets lost.

4. A query is a request for information. a query can be a simple search for information. As in when was Abraham Lincoln born, or when was the earths revolvation around the sun discovered?

6. It is better to use a personal information manager because you can edit the files all by yourself. Also, you can have all your information on there such as adress books and calanders. Its easier to use then paper notebook organizers because its more sufficient.

7. When sorting a data file, all the files are put into alternating folders which are contained in the database.



8. In order to avoid data-entry errors, it is good to make files to sort the information in. Also it is good to link those files together so you dont accidentally have multiple files or confuse data.

10. We do have certian legal privacy rights when it comes to escaping identity theft and having privacy in our online photoalbums or emails. In what we make public, that shouldnt have much privacy rights, but what you make private should remain private.