Answer:
1. computer catalog: a searchable record of a library's holdings
Step-by-step explanation
Computer catalog is the information of files or data that we managed in the file to search easily.
2. encyclopedia: a collection of articles providing brief, essential information on a topic.
Explanation
It is the source of information, where all the details related to the topic, or subject are given.
3. almanac: a resource providing statistical information on a variety of topics
Step-by-step explanation
A detail information of statistical data to analyze the information related to different environmental parameters to make decision.
4. atlas: a source providing geographical information
Step-by-step explanation
It is the source of information where we can find the maps and other details related to the geography.
5. periodical Index: a searchable listing of magazine and journal articles
Step-by-step explanation
It is the information of publications of magazines and journals to make search easy.
6. newspaper: the most current form of news information
Step-by-step explanation
It is the source of information that contains information related to current affairs.
7. database: computerized and/or Internet-based collection of information
Explanation
The collection of information or data on computer in organized manners is called data base. This data is easy to add, edit and remove.
8. Inter library loan: a system allowing sources from one library to be obtained through another
Step-by-step explanation
It is the sources of information where we can borrow books by given them some other source or book.