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JSS3: COMPUTER STUDIES - 1ST TERM

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  1. Computer Career Opportunities | Week 1
    5 Topics
    |
    1 Quiz
  2. Computer Viruses I | Week 2
    7 Topics
    |
    1 Quiz
  3. Computer Viruses II | Week 3
    7 Topics
    |
    1 Quiz
  4. Introduction To The Internet | Week 4
    4 Topics
    |
    1 Quiz
  5. Internet Terminologies | Week 5
    4 Topics
    |
    1 Quiz
  6. The Concept of Digital Divide | Week 6
    5 Topics
    |
    1 Quiz
  7. Database Concept, Definition And Terminologies | Week 7
    4 Topics
    |
    1 Quiz
  8. Database II | Week 8
    3 Topics
    |
    1 Quiz
  9. Database III | Week 9
    13 Topics
    |
    1 Quiz



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Topic Content:

  • Some Basic Database Terminologies
    • file, table, field, record, primary key et.c

A computer system organizes data in a hierarchy that begins with the bit, which represents either a 0 or a 1. Bits can then be grouped to form a byte which represents one character, number, or symbol. Bytes can be grouped to form a field, and related fields can be grouped to form a record.

Below are some basic database terminologies;

1. Field: This is a portion of a record, for example, name, age, class, registration number, etc. It is actually a column on a datasheet, and it defines a data type for a set of values in a table.

2. Record: This is a collection of fields in a database such as student’s name, age, class, etc. A record is made up of one or more keys. It is actually a row on a datasheet and it is a set of values defined by fields.

 

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