Eletronic Media

Floppy disk and other magnetic media

Magnetic Media
- Magnetic tape
- Magnetic disk
- Hard disk
- Floppy disk

READ ONLY MEMORY (permanently)
&
RANDOM ACCESS MEMORY (temporary)

Remember!!!

Tips to remember for Database:

• A Database is the set of information on one subject.
• A Table is a collection of records containing the same fields.
• A record is the group of information on one particular item.
• A data item is one piece of information found in a record.
• A key field is one of the fields in a database in which all items are unique.

introduction to database

spreadsheet