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CPSC 110 Exam 2
Ch 5 , 7-10
Terms in this set (63)
Some web pages are "invisible." That is, no search engine will return them in a query. Why do these pages exist?
all of the above
When picking additional sources you should choose
When searching on Google, this is the same as using the AND keyword.
Who is in charge of the world wide web
After finding the Web page you want, what is the next question you should ask yourself?
When was the web page first published?
The higher the __ is, the closer to the top of the list a web page will be in the returned results of a search query
__ in Google search queries are interpreted as AND
The main work of the __ is to build an index
( ) is the keyboard shortcut for finding certain words on a web page
^F, that is, Ctrl+F or Command+F
Wikipedia is validated by
Wikipedia is not considered a ______ source.
Crawlers crawl less than _____ of the Web.
How many symbols can be represented by four bits?
PandA representation is what kind of system?
What was used to help structure the digitized Oxford English Dictionary?
When using physical phenomena to encode information, name one potential solution if there are more than two alternatives.
adopt one as present and all the other alternatives as absent
K bits in a sequence yield how many symbols
PandA is short for
present and absent
( ) encode information on DVDs and CDs
bumps or pits
Hexadecimal is base
__ is the name we use for the two fundamental patterns of digital information based on the presence and absence of a phenomenon
__ is representing information with symbols
Put the following binary values representing the intensity of green in order from least intense to most intense: 1111 1100, 1111 1111, 1100 0000, 1111 0000
1100 0000 1111
The RGB setting for blue is (0 is off, 1 is on)
0000 0000 0000 0000 1111 1111
People tend to be sensitive to small changes in ______, but not to small changes in ______.
According to the Nyquist rule, the sampling rate for sound should be roughly
twice what humans can hear
The accuracy of a digitized sound is determined by
all of the above
a digital to analog converter
changes digital information to analog waves
Jessica Simpson's "A Little Bit" is 3 minutes 47 seconds long. How many bits is this?
Raymond Kurzweil is known as the inventor of
RGB values are usually stored as three
All colors with equal intensities of RGB subpixels are either _____, _____, or shades of gray.
( ) sound removes the highest and lowest samplings as part of its compression algorithm
In OCR, each pixel is an estimate of how __ the corresponding area is
A process that allows the computer to "read" printed characters is called
optical character recognition
when converting analog sound to digital sound, using __ bits yields a more accurate digitization
The __ states that bits can represent all discrete information even though the bits have no meaning of their own
Bias-Free Universal Medium Principle
GIF images are limited to ___ colors.
A machine instruction uses how many bytes of memory?
What has made computers faster?
Making the F/E cycle more complicated
The processor has how many moving parts?
Modern computers know
about a hundred instructions
Rerunning a program with the same data produces
exactly the same result every time
If this.Opacity += 1.0; increases the opacity, what line of code would decrease the opacity?
deterministically execute instructions to process information.
( ) is an acronym for the name of the location where computer programs run and data is stored
In addition to fetching instructions, the F/E cycle also fetches
The math in the computer is done by the _____
The __ encodes keystrokes into binary form for the computer.
A computer's clock speed is measured in:
Every memory location has a(n) _______.
is a long list of words, more accurately, a long series of 0's and 1's that make up a computer program.
a binary object file
is a program that extends the operations a computer can perform beyond the hardwired machine instructions.
an operating system
An algorithm is a
systematic method for producing a specified result
Algorithms are used by
Algorithms must always
produce output or state that there is no solution
Algorithms are guaranteed to work
100 percent of the time
When writing an algorithm in a natural language it is helpful to use _____ instead of _____.
How many algorithms can solve one specific problem?
Programs containing _____ cannot be verified exhaustively.
repeated instructions such as loops
Algorithms must be _____; they eventually stop with the right output or a statement that no solution is possible.
The steps in algorithms must be ____ so that the agent is able to do it.
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