Comp Organization
0xFABC is the hexadecimal representation of the binary string ________.
1111101010111100
110001 is the 6-bit unsigned representation for decimal value of ________.
49
With 16 bits, we can uniquely represent ________ distinct elements.
65536
Every ASCII code corresponds to a key on the keyboard that can produce a character on the screen of the monitor.
False
If numbers are to be represented with 10 bits, we can represent more unique numbers if we use an unsigned integer representation than if we use signed integer representations.
False
The ASCII code for semicolon is formed by adding the ASCII codes for period and comma.
False
The character ? does not have an ASCII code.
False
The exponent of an IEEE Floating point number is encoded in 2's complement representation.
False
If A is false, the ________ of A is true.
NOT
A XOR B is true if one of A,B is true and one of A,B is false.
True
Hexadecimal numbers are represented with radix 16.
True
The 2's complement representation for -2 is 111111111110, if we have 12 bits available to represent signed integers. Correct!
True
The floating point data type allows us to represent both much larger and much smaller numbers than is possible with 2's complement integers.
True
The logical NOT function is a unary function, because it has only one source operand. Correct!
True
00100100 is the ASCII code for ________.
$
110001 is the 6-bit 2's complement representation for decimal number _______
-15
If the radix is 16, each digit can have a value in the range: You Answered
0-15
What values does hexadecimal use?
0-9 and A- F; A-F == 10-15
The decimal digit 5 can be represented as a bit string:
0000000000000101 00000101 10101
Inside a computer, the ________ performs both arithmetic and logical operations.
ALU
The ________ function produces the value false, unless both sources are true.
AND
Most keys on the keyboard have at least two corresponding ________ codes, depending on whether or not the SHIFT key is also simultaneously depressed.
ASCII
If we add the 2's complement representation of k to the 2's complement representation of -k, the result will be
All 0's, plus a carry
An operator requiring two source operands is called a ________ operator.
Binary
0x________ is the hexadecimal representation of the binary string 0000111100101010.
F2A
If A is true, and B is false, the expression NOT(A) OR B is
FALSE
A AND B is true if at least one of the two variables A, B is true.
False
The operation ADD is
a binary operator because it requires TWO operands
A data type is:
a representation of information for which there are operations in the computer that can operate on the information encoded in that representation.
For the value of A OR B to be true
at least one of the two values A, B is true
Decimal numbers have a ________ of ten.
base
We use the term ________ as a shortened form of binary digit.
bit
AND and NOT are examples of ________ operators.
boolean
A ________ is a representation of information, for which an operator exists that can operator on that representation.
data type
With 12 bits, we can represent uniquely:
exactly 4096 distinct items
A floating point representation is comprised of
exponent, sign, fraction
The ________ data type allows the representation of much larger and much smaller values than 2's complement integer representation.
floating point
The digits 0,1,...9,A,B,C,D,E,F are used in ________ notation.
hexadecimal
Using 8 bits, the unsigned integer representation of -13 is
not possible to represent
When two positive integers produce a negative result, we know a/an ________ has occurred.
overflow
In 2's complement arithmetic, an overflow occurs if:
two positive numbers produce a negative result & two negative numbers produce a positive result
