What are the disadvantage of computerized reservation system?

Older systems take up a lot of space, though still much less than a library of books.

Searching for information can be difficult if you don't know how to use search terms effectively or if you have to contend with search spam.

Modern computers in the forms of tablets and palmtops are often too small to use effectively.

Computers can malfunction or fail altogether.

Computers cannot be used without electricity, though they are becoming more portable and more able to use with batteries.

Computers need maintenance, and are prone to malware such as spyware and viruses.
Security & fear