ITE 272 EXAM 2 STUDY GUIDE QUESTIONS AND VERIFIED
ANSWERS
Fetch - CORRECT ANSWER✅✅✅Data inputs are prepared for transformation into data outputs.
Execution - CORRECT ANSWER✅✅✅The transformation that takes place and the output is stored.
Control Unit - CORRECT ANSWER✅✅✅Moves data, accesses instructions between main memory
and registers, and controls the arithmetic logic unit.
Arithmetic Logic Unit - CORRECT ANSWER✅✅✅Performs all computation and comparison
operations.
Registers - CORRECT ANSWER✅✅✅Internal storage locations in a CPU; each is capable of holding a
single instruction or data item instruction and instruction sets. Storage locations that hold inputs and
outputs for the ALU.
OP code - CORRECT ANSWER✅✅✅The first group of bits and represents the instruction's unique
binary number.
Operands - CORRECT ANSWER✅✅✅In an instruction's bit string, they're groups of bits after the op
code that hold the instruction's input values; they can contain a data item or the location of a data item.
Move - CORRECT ANSWER✅✅✅Copies data to storage locations and can copy data between any
combination of registers and primary storage locations.
Load - CORRECT ANSWER✅✅✅Data transfer from main memory into a register.
Store - CORRECT ANSWER✅✅✅Data transfer from a register into primary storage.
NOT, AND, OR, XOR - CORRECT ANSWER✅✅✅Data Transformation Boolean Operators
, ADD - CORRECT ANSWER✅✅✅Accepts two numeric inputs and produces their arithmetic sum.
NOT - CORRECT ANSWER✅✅✅Transforms the Boolean value true (1) into false (0) and the value
false into true.
AND - CORRECT ANSWER✅✅✅Generates the result true if both of its data inputs are true.
OR - CORRECT ANSWER✅✅✅Generates the value true if either or both data inputs are true.
XOR - CORRECT ANSWER✅✅✅Generates the value true if either (but not both) data input is true.
SHIFT - CORRECT ANSWER✅✅✅Moves all bit values right or left, according to the number of
positions specified by the operand; after shifting, empty positions are filled with 0s, and bit values that
shift beyond the bit string's bounds are discarded.
Logical Shift - CORRECT ANSWER✅✅✅Extracts a single bit from a bit string.
Arithmetic Shift - CORRECT ANSWER✅✅✅Performs division or multiplication
Halt - CORRECT ANSWER✅✅✅Suspends the normal flow of the program.
Unconditional branch - CORRECT ANSWER✅✅✅Changes the sequence of the instruction's execution
in the program.
Conditional branch - CORRECT ANSWER✅✅✅Changes the instruction execution only if the value is
true.
BRANCH - CORRECT ANSWER✅✅✅Causes the processor to depart from sequential instruction
order.
ANSWERS
Fetch - CORRECT ANSWER✅✅✅Data inputs are prepared for transformation into data outputs.
Execution - CORRECT ANSWER✅✅✅The transformation that takes place and the output is stored.
Control Unit - CORRECT ANSWER✅✅✅Moves data, accesses instructions between main memory
and registers, and controls the arithmetic logic unit.
Arithmetic Logic Unit - CORRECT ANSWER✅✅✅Performs all computation and comparison
operations.
Registers - CORRECT ANSWER✅✅✅Internal storage locations in a CPU; each is capable of holding a
single instruction or data item instruction and instruction sets. Storage locations that hold inputs and
outputs for the ALU.
OP code - CORRECT ANSWER✅✅✅The first group of bits and represents the instruction's unique
binary number.
Operands - CORRECT ANSWER✅✅✅In an instruction's bit string, they're groups of bits after the op
code that hold the instruction's input values; they can contain a data item or the location of a data item.
Move - CORRECT ANSWER✅✅✅Copies data to storage locations and can copy data between any
combination of registers and primary storage locations.
Load - CORRECT ANSWER✅✅✅Data transfer from main memory into a register.
Store - CORRECT ANSWER✅✅✅Data transfer from a register into primary storage.
NOT, AND, OR, XOR - CORRECT ANSWER✅✅✅Data Transformation Boolean Operators
, ADD - CORRECT ANSWER✅✅✅Accepts two numeric inputs and produces their arithmetic sum.
NOT - CORRECT ANSWER✅✅✅Transforms the Boolean value true (1) into false (0) and the value
false into true.
AND - CORRECT ANSWER✅✅✅Generates the result true if both of its data inputs are true.
OR - CORRECT ANSWER✅✅✅Generates the value true if either or both data inputs are true.
XOR - CORRECT ANSWER✅✅✅Generates the value true if either (but not both) data input is true.
SHIFT - CORRECT ANSWER✅✅✅Moves all bit values right or left, according to the number of
positions specified by the operand; after shifting, empty positions are filled with 0s, and bit values that
shift beyond the bit string's bounds are discarded.
Logical Shift - CORRECT ANSWER✅✅✅Extracts a single bit from a bit string.
Arithmetic Shift - CORRECT ANSWER✅✅✅Performs division or multiplication
Halt - CORRECT ANSWER✅✅✅Suspends the normal flow of the program.
Unconditional branch - CORRECT ANSWER✅✅✅Changes the sequence of the instruction's execution
in the program.
Conditional branch - CORRECT ANSWER✅✅✅Changes the instruction execution only if the value is
true.
BRANCH - CORRECT ANSWER✅✅✅Causes the processor to depart from sequential instruction
order.
