A performance venue hosts many concert series a year. Performers have a name and perform several times in a concert series (each constitut-ing a performance with a different date). Con-cert series have one or more performers and have a name and a specified seating arrange-ment. A concert series is held in one (and only one) of several concert halls, each of which has a room number. Represent this situation of con-certs and performers with an E-R diagram.

Write the command that can be used to answer the following questions. (hint: try each out on the system to check your results.) a. find all files on the system that have the word test" as part of their filename. b. search the path variable for the pathname to the awk command. c. find all files in the /usr directory and subdirectories that are larger than 50 kilobytes in size. d. find all files in the /usr directory and subdirectories that are less than 70 kilobytes in size. e. find all files in the / directory and subdirectories that are symbolic links. f. find all files in the /var directory and subdirectories that were accessed less than 60 minutes ago. g. find all files in the /var directory and subdirectories that were accessed less than six days ago. h. find all files in the /home directory and subdirectories that are empty. i. find all files in the /etc directory and subdirectories that are owned by the group bin."

This graph compares the cost of room and board at educational institutions in texas.

What are three software programs for mobile computing?