Answer:
1. I express myself through the designing, development and analysis of software and hardware used to solve problems in a variety of business, scientific and social contexts.
2. support the development of general reasoning, problem-solving and communication skills.
3. Through avoiding in repetious tasks and simplifying such works.
Wipe off the hard drive with a software eraser but it won't be quick and won't work on defective disks
This is about identifiers in a record referring to other records.
You can have many to one, one to one, many to many.
E.g., if you have two tables, Authors and Books, then a book record could have a reference to an author record. Since an author can write many books, this would be a many-to-one relationship.
I do not know spanish please say in english
