A(n) ____ is a file, such as a document or picture, which is sent along with an e-mail message.

Theelement.onselectevent handler signifies that theelementvalue is invalid.

Answer the following statement true (T) or false (F)

Explain why adaptors are usually needed when systems are constructed by integrating application systems. Suggest three practical problems that might arise in writing adaptor software to link two application systems.

What will be an ideal response?