WGU C952 - Instructions questions with 100%
correct answers
Instruction Set
The vocabulary of commands understood by a given architecture.
Stored-program Concept
The idea that instructions and data of many types can be stored in memory as numbers and thus be
easy to change, leading to the stored-program concept.
Word
A natural unit of access in a computer, usually a group of 32 bits.
Doubleword
Another natural unit of access in a computer, usually a group of 64 bits; corresponds to the size of a
register in the LEGv8 architecture.
Data Transfer Function
A command that moves data between memory and registers.
Address
A value used to delineate the location of a specific data element within a memory array.
Alignment Restriction
A requirement that data be aligned in memory on natural boundaries.
Binary Digit (Binary Bit)
One of the two numbers in base 2, 0 or 1, that are components of information.
Least Significant Bit (LSB)
The rightmost bit.
Most Significant Bit (MSB)
The leftmost bit.
Two's Complement
A signed number representation where a leading 0 indicates a positive number and a leading 1
indicates a negative number. The complement of a value is obtained by complementing each bit (0 to
1, 1 to 0) and then adding one to the result.
One's Complement
A notation that represents the most negative value by 100....000 (base 2) and the most positive value
with 01...111 (base 2) leaving an equal number of negatives and positives but ending up with two
zeroes, one positive (00...00) and one negative (11...11). The term is also used to mean the inversion
of every bit in a pattern.
correct answers
Instruction Set
The vocabulary of commands understood by a given architecture.
Stored-program Concept
The idea that instructions and data of many types can be stored in memory as numbers and thus be
easy to change, leading to the stored-program concept.
Word
A natural unit of access in a computer, usually a group of 32 bits.
Doubleword
Another natural unit of access in a computer, usually a group of 64 bits; corresponds to the size of a
register in the LEGv8 architecture.
Data Transfer Function
A command that moves data between memory and registers.
Address
A value used to delineate the location of a specific data element within a memory array.
Alignment Restriction
A requirement that data be aligned in memory on natural boundaries.
Binary Digit (Binary Bit)
One of the two numbers in base 2, 0 or 1, that are components of information.
Least Significant Bit (LSB)
The rightmost bit.
Most Significant Bit (MSB)
The leftmost bit.
Two's Complement
A signed number representation where a leading 0 indicates a positive number and a leading 1
indicates a negative number. The complement of a value is obtained by complementing each bit (0 to
1, 1 to 0) and then adding one to the result.
One's Complement
A notation that represents the most negative value by 100....000 (base 2) and the most positive value
with 01...111 (base 2) leaving an equal number of negatives and positives but ending up with two
zeroes, one positive (00...00) and one negative (11...11). The term is also used to mean the inversion
of every bit in a pattern.
