What was the importance of the Turing machine to today's computers?
a. It described a system that was a precursor to today's notebook computer.
b. It was the first electronic calculator and a precursor to the computer.
c. It was the first computer to have a monitor.
d. It described a process to read, write, and erase symbols on a tape and was the precursor to today's RAM.
D
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A(n) ____ occurs at regular intervals, such as weekly, biweekly, monthly, or bimonthly.
A. event B. recurring appointment C. conference D. one-time meeting
A(n) ____ is information that a Web server stores on a client computer, such as the client's preferences when accessing a particular Web site, or where the client has been on the Web site.
A. applet B. cookie C. scanner D. listener
An example of the function that returns the number of cells in a range of cells that contain data is ____.
A. =NUMBER(B4) B. =COUNT(B4) C. =NUMBER(B4:B15) D. =COUNT(B4:B15)
In the code for the add method in the implementation of a heap, what is the missing code?
def add(self, item): self.size += 1 self.heap.append(item) curPos = len(self.heap) - 1 while curPos > 0: parent = (curPos - 1) // 2 parentItem = self.heap[parent] if parentItem <= item:
A. curPos += 1 B. break C. self.heap[curPos] = item D. parent = curpos