Chapter 11/2 Terms Flashcards
Aka database software; users create a computerized database; add, modify, and delete data in the database; sort and retrieve data from the database; and create forms and reports from the data in the database
DBMS (data base management system)
a combination of oen or more related characters or bytes and is the smallest unit of data a user accesses
field
a group of related fields
record
a named collection of stored data, instructions, or information that can contain text, images, audio, and video
file
sama data, different locations, wastes time and encourages mistakes. Each time information in list is updated, multiple lists need to be updated
data redundancy
specifies the kind of data a field in a database can contain and how the field is used
data types
term used by users of relational databases for record
row
a database that stores data in tables that consist of rows and columns
relational database file
a request for specific data from a database
query
term used by users of relational databases for file
table
aka data entry form; a window on the screen that provides areas for entering or modifying data in a database
forms
aka report generator; allows users to design a report on the screen, retrieve data into the report design, and then display or print the report
report writer
aka data modeler; focuses on the meaning and usage of data
database analyst
requires a more technical inside view of the data
database administrator (DBA)
procedures that keep data current
database file maintenance
agency of the U.S. Department of Defense whose goal was to build a network that:
(1) allowed scientists at different physical locations to share information and work together on military and scientific projects
(2) could function even if part of the network was disabled or destroyed by a disaster such as a nuclear attack
ARPANET