INTRODUCTION TO COMPUTERS
CHAPTERS 1-6 EXAM
Which of the following terms best describes the concept of abstraction? - Correct
Answers -exposing difficulty
exposing representation
exposing distance
Correct! hiding details X
hiding quantity
Who was the first programmer? - Correct Answers -Lovelace
In which hardware generation were integrated circuits introduced? - Correct Answers -
third
Magnetic disks were introduced in the second generation of computer hardware. -
Correct Answers -True
A systems programmer writes programs that make it easier for others to program. -
Correct Answers -True
A computer that has a parallel architecture uses multiple central processing units. -
Correct Answers -True
What is the largest digit in the octal number system? - Correct Answers -7
Which of the following describes the number 0 and any number that can be obtained by
repeatedly adding one
to it? - Correct Answers -natural number
What is a group of eight binary digits called? - Correct Answers -BYTE
The category of numbers called integers includes negative numbers. - Correct Answers
–TRUE
Which of the following is true about black box testing? - Correct Answers -the test cases
are based on the output
, Which register contains the address of the next instruction to be executed? - Correct
Answers -program counter
In the Pep/8 machine, the contents of the A register can be compared to the contents of
a place in memory. - Correct Answers -TRUE
The letter C is used to represent the number 11 in hexadecimal. - Correct Answers -
FALSE
There is one set of underlying principles governing all numbers systems. - Correct
Answers -TRUE
What is the minimum number of bits needed to represent 6 things? - Correct Answers -3
Which of the following is not a raster graphics format? - Correct Answers -FLASH
Which audio format is the most popular today? - Correct Answers -MP3
Which text compression technique replaces a long series of repeated characters with a
count of the repetition? - Correct Answers -run length encoding
It's possible to represent four things with two bits. - Correct Answers -TRUE
Audio data is often represented on a computer by sampling the continuous signal that
represents a sound
wave. - Correct Answers -TRUE
Thicker monitors produce more vibrant colors because they have a higher color depth. -
Correct Answers -FALSE
Which gate does the following Boolean expression represent?
X = A(+)B - Correct Answers -XOR
Which gate produces a 0 only if all its inputs are 0 and a 1 otherwise? - Correct
Answers -OR
Which gate does the following Boolean expression represent?
X = (A* B)' - Correct Answers -NAND
The inversion bubble of an AND gate causes its input to be reversed - Correct Answers
-FALSE
A transistor is made of material that acts as a good insulator, such as rubber - Correct
Answers -FALSE
A NOT gate allows only one of its two input values to pass - Correct Answers -FALSE
CHAPTERS 1-6 EXAM
Which of the following terms best describes the concept of abstraction? - Correct
Answers -exposing difficulty
exposing representation
exposing distance
Correct! hiding details X
hiding quantity
Who was the first programmer? - Correct Answers -Lovelace
In which hardware generation were integrated circuits introduced? - Correct Answers -
third
Magnetic disks were introduced in the second generation of computer hardware. -
Correct Answers -True
A systems programmer writes programs that make it easier for others to program. -
Correct Answers -True
A computer that has a parallel architecture uses multiple central processing units. -
Correct Answers -True
What is the largest digit in the octal number system? - Correct Answers -7
Which of the following describes the number 0 and any number that can be obtained by
repeatedly adding one
to it? - Correct Answers -natural number
What is a group of eight binary digits called? - Correct Answers -BYTE
The category of numbers called integers includes negative numbers. - Correct Answers
–TRUE
Which of the following is true about black box testing? - Correct Answers -the test cases
are based on the output
, Which register contains the address of the next instruction to be executed? - Correct
Answers -program counter
In the Pep/8 machine, the contents of the A register can be compared to the contents of
a place in memory. - Correct Answers -TRUE
The letter C is used to represent the number 11 in hexadecimal. - Correct Answers -
FALSE
There is one set of underlying principles governing all numbers systems. - Correct
Answers -TRUE
What is the minimum number of bits needed to represent 6 things? - Correct Answers -3
Which of the following is not a raster graphics format? - Correct Answers -FLASH
Which audio format is the most popular today? - Correct Answers -MP3
Which text compression technique replaces a long series of repeated characters with a
count of the repetition? - Correct Answers -run length encoding
It's possible to represent four things with two bits. - Correct Answers -TRUE
Audio data is often represented on a computer by sampling the continuous signal that
represents a sound
wave. - Correct Answers -TRUE
Thicker monitors produce more vibrant colors because they have a higher color depth. -
Correct Answers -FALSE
Which gate does the following Boolean expression represent?
X = A(+)B - Correct Answers -XOR
Which gate produces a 0 only if all its inputs are 0 and a 1 otherwise? - Correct
Answers -OR
Which gate does the following Boolean expression represent?
X = (A* B)' - Correct Answers -NAND
The inversion bubble of an AND gate causes its input to be reversed - Correct Answers
-FALSE
A transistor is made of material that acts as a good insulator, such as rubber - Correct
Answers -FALSE
A NOT gate allows only one of its two input values to pass - Correct Answers -FALSE
