2020-10-11
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1. Match the following words with their synonyms marked in the text with bold type: complicated, non-availability, completing, versatile, in use, unified, related, surplus, tiresome, specifying, connected, limited, make away with, entry, built, support, viewpoint, supervising, essential, connected.
2. Match each of the following terms to the phrase that is the most closely related: 1. hierarchical database model, 2. record, 3. database administrator, 4. schema, 5. transaction log, 6. database, 7. data redundancy, 8. data dictionary, 9. database management system, 10. network database model, 11. one-to-many relationship, 12. physical database design, 13. data independence, 14. relational database model, 15. file management system.
a. Organization of a database in its entirety.
b. Major limitation of file management systems.
c. Contains all the information about elements of data stored in a database
d. In this database model, each record can have more than one parent.
e. Record of all activity that has affected a database during a period of time
f. Hierarchical database model.
g. Using this approach means that applications software programs can access data from only a single file at a time.
h. Specifies exactly how data will be arranged and stored on a storage device for use by the DBMS.
i. Collection of related files.
j. A major advantage to using a database management system.
k. This person or group coordinates all related activities to control a database in an organization.
l. Group of related fields.
m. This model is composed of parent and child records (one parent to more than one child).
n. Software tool that facilitates the creation and maintenance of databases.
o. The most popular type of database model used on microcomputers.
Answer the questions.
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1. What is query language and why is it a valuable aspect of DBMS software?
2. Why is it important to administrate a company database?
3. Why is it relevant for users to understand the fundamentals of database management systems?
4. Why do you think microcomputer users are more likely than mainframe users to be involved with the design of a database?
5. What is a database management system?
6. What are the main disadvantages of database management systems?
7. What are the differences between the logical and the physical designs of a database structure?
8. What are data dictionaries and transaction logs? What are their uses?
9. What is the role of software in a DBMS?
10. What are the advantages of organizing a database according to a relational model as opposed to a network model?
V. Discuss the following with your groupmates.
Discuss the use of SQL. What do you think the future holds for it? What is it being used for? On what types of computers is it being used? How does SQL affect the way data can be used in business?
Практическое занятие №16
Тема: Компьютерная графика.
Computer Graphics
I. First thoughts. Do you watch cartoons? What is the modern way to make them?
II. Study the words. Make sure you know them. Practice the pronunciation.
Drawing, design, computer-aided, manufacturing, three-dimensional, to be essential, facility, tool, palette, primitive, attribute, pop-up icon, translation, rotation, axis, rendering, scaling.
