Answer:
Please check the attachment.
Explanation:
The adjacency matrix is the matrix that has nodes as rows and columns. The nodes if connected is stated as 1 or else 0. And the adjacency list representation is the list with nodes and connected nodes. The nodes that are not connected are not being listed. The diagram and list as well as matrix can be found in the attachment.
Computer Categories are like
Supercomputers, mainframe computers, microcomputers, mobile computers, minicomputers.
I hope that this is the type of answer that you were looking for.
Answer:B. Are used to create, organize, and manage databases
Explanation: Database management system (DBMS) is a computer software which is used to collect, analyse or evaluate and retrieve data from a database. It is essential to the flow of businesses or other activities of an organisation.
Examples of database management system softwares MICROSOFT ACCESS,FOXPRO,ORACLE etc all this are effective as it helps to manipulate the data structure,field names,the file formats etc.