AND SOLUTIONS GRADED A+ TIP
✔✔____________________ are storage locations that hold inputs and outputs for the
ALU. - ✔✔Registers
✔✔In contrast to a formula, a program that implements an algorithm must include
comparison and ____________________ instructions.
a) branching
b) logic
c) boolean
d) arithmetic - ✔✔branching
✔✔How many character symbols can standard ASCII represent? Recall that it uses 7
bits per character. - ✔✔128
✔✔In numbering systems other than the decimal numbering system, the term radix
point is used for the period.
- true or false - ✔✔true
✔✔A(n)____ instruction generates the value true if either (but not both) data input is
true. - ✔✔exclusive or (XOR)
✔✔A(n) ____ is the lowest-level command that software can direct a processor to
perform. - ✔✔instruction
✔✔The CPU contains a few internal storage locations called ____, each capable of
holding a single instruction or data item. - ✔✔registers
✔✔____ is a character-coding method developed in the 1960s and is effectively still in
use today as the first 128 characters of UTF-8.
a) ANSI
b) UNICODE
c) EBCDIC
d) ASCII - ✔✔ASCII
✔✔All computers are automated devices, and all automated devices are computers.
- true or false - ✔✔False
, ✔✔The leftmost digit in a bit string is called the ____. - ✔✔most significant digit
✔✔During the ____ cycle of the CPU, the transformation takes place and data output is
stored. - ✔✔execution
✔✔A simple definition of a computer is a device that can accept numeric inputs, perform
computational functions, and ____.
a) communicate results
b) solve formulas
c) transmit data over a network
d) detect quantum storage states - ✔✔communicate results
✔✔A machine capable of adding whole numbers can multiply whole numbers by
executing the addition function multiple times.
- true or false - ✔✔True
✔✔Shifting an 8-bit twos complement value to the right by seven positions is a simple
way to extract and test the sign bit.
- true or false - ✔✔True
✔✔The number of bits in a floating-point string and the formats of the mantissa and
exponent impose limits on the range of values that can be represented.
- true or false - ✔✔True
✔✔In their written form, English and many other languages use alphabetic letters,
numerals, punctuation marks, and a variety of other special-purpose symbols known as
____. - ✔✔Characters
✔✔The fractional portion of a real number is represented by digits to the right of the
____.
a) radix point
b) mantissa
c) exponent
d) base - ✔✔radix point
✔✔RISC is a philosophy of processor design that deliberately includes complex
instructions.
- true or false - ✔✔False