Which of these statements regarding the MIDI audio format is not true?
a. The sound can easily be changed by changing instruments.
b. Spoken audio can easily be included.
c. Sound tracks can be created using sequencing software.
d. Files are generally smaller than the same digital audio sound.
e. Sounds can be stretched and timing changed with no distortion of the quality.
b. Spoken audio can easily be included.
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All of the following are true about SQL except __________.
a. SQL provides a standard means of interacting with a database. b. SQL consists of several keywords. c. SQL stands for "Sequenced Query Language" d. SQL is an industry-standard language.
__________ is a fast, accurate, inexpensive, high-capacity, nonvolatile extension of main memory.
a. RAM b. ROM c. D-RAM d. Secondary storage
Consider the LIBRARY relational schema shown in Figure 6.14, which is used to keep track of books, borrowers, and book loans. Referential integrity constraints are shown as directed arcs in Figure 6.14, as in the notation of Figure 3.7. Write down relational expressions for the following queries on the LIBRARY database:
(a) How many copies of the book titled The Lost Tribe are owned by the library branch whose name is "Sharpstown"? (b) How many copies of the book titled The Lost Tribe are owned by each library branch? (c) Retrieve the names of all borrowers who do not have any books checked out. (d) For each book that is loaned out from the "Sharpstown" branch and whose DueDate is today, retrieve the book title, the borrower's name, and the borrower's address. (e) For each library branch, retrieve the branch name and the total number of books loaned out from that branch. (f) Retrieve the names, addresses, and number of books checked out for all borrowers who have more than five books checked out. (g) For each book authored (or co-authored) by "Stephen King", retrieve the title and the number of copies owned by the library branch whose name is "Central".
What two main options do organizations have for acquiring or using computer hardware?
Fill in the blank(s) with the appropriate word(s).