Ch. 2 Q & A
A binary representation of a fractional number does NOT have the following part: - unsign bit - mantissa - exponent - sign bit
A
A byte typically uses which number system? - The base 2 number system (binary) - The base 6 number system - The base 10 number system (decimal) - The ASCII number system
A
A floating point value is a number _____. - whose decimal point can float or be adjusted - that does not have a decimal point - none of the above - whose decimal point is fixed
A
Decimal numbers are converted to binary using which? - division by powers of base 2. - multiplication by powers of base 10. - multiplication by powers of base 2. - division by powers of base 10.
A
How is the binary system useful in computers? - electronic components have two states - on or off - computer code only reads the numbers 0 and 1 - computers have ten keys - computers were made to read real numbers
A
How many bits are in one byte? - 8 - 255 - 9 - 7
A
How many bytes are in 1 kilobyte of storage? - 1,024 bytes - 256,000 bits - 1,000 bytes - 1,048,576 bytes
A
To convert a fixed point binary number to its decimal value, all digits to the _____ of the decimal should be multiplied by _____. - right; 2-n - left; 2-n - left; base 2 - right; base 2
A
What is another name for base two? - Binary - Counting to ten - Alpha-numeric - All of these
A
What is the largest decimal that can be represented by an unsigned binary number the size of one byte? - 255 - 128 - 64 - 256
A
What number system is used internally by computers? - binary - decimal - octal - hexadecimal
A
Which of the following numbers is not a part of the binary number system? - 120 - 100 - 110 - 101
A
Which of these numbers represents the largest value? - 1000 in hexadecimal - 1000 in octal - 1000 in decimal - 1000 in binary
A
A binary digit is represented by _____. - 1s and 10s - 2s and 0s - 5s and 10s - 0s and 1s - 10s and 20s
B
A decimal number is represented as _____. - base 16 number - base 10 number - base 2 number - base 8 number
B
ASCII lets your computer _____. - Ask you questions - Convert analog to digital - Save files - Remove data
B
How is the binary system different from decimal numbers? - it has ten numbers and values - it only has two values for any one position - it has zero values and ten numbers - it has one value for every position
B
Mantissa has _____ number of bits in it - 28 - 23 - 26 - 25
B
There are _____ bits in a byte. - 4 - 8 - 16 - 6 - 32
B
What Chinese sovereign wrote thoughts of binary systems? - King Kong - King Fu Xi - King Fuji - King Fumilton
B
What is the binary number system? - the way we work numbers in two step operations - a number system based on two numbers, 0 and 1 - a computer coding system - a number system based on ten numbers, 0-9
B
Which example shows the number 42 in binary? - 42 - 00101010 - 052 - 002A
B
Which number system has places of four, sixteen, and sixty-four? - Base two - Base four - Base ten - Base five
B
Which of the following is NOT an application of the binary number system? - Computer algortithms - Determining the roots of a polynomial system - Encoding data into digital formats - Boolean algebra
B
Which option below lists the type of signal generated when a dog barks or a cat meows? - digital - analog - static - linear
B
Who invented the binary number system? - Ancient Egytians - Gottfried Wilhelm Leibniz - Francis Bacon - The Chinese king and philosopher Fuxi
B
Why is there a letter y in the word byte? - Byte is short for 'by terminal', since computers used to use terminals not PCs. - Werner Buchholz wanted to distinguish it from the word bite. - No one knows why, and when no one knows why, we use the letter y. - Because programmers are notoriously bad at spelling and grammar.
B
How does a minimized Hamming distance make Gray code ideal for error control in switch-based encoders? - Gray code requires fewer logic gate transistors. - A single switch error will result in minimal error in the reported value. - Gray code has a high data compression capacity. - Gray code prevents all switching errors.
B The arrangement of Gray code is such that each number has only a one-bit difference with its adjacent numbers. Thus an error in a single bit has minimal ramification.
Computers use which number system? - Base ten - Base five - Base two - Base four
C
For the most part, humans use which number system? - Base two - Base four - Base ten - Base five
C
In the binary number system, which one of the following addition problems would be incorrect? - 10+101=111 - 110+11=1001 - 100 + 1001 = 10101 - 1010+10=1100
C
To convert a decimal to a binary, the value to the _____ is divided by the _____. - left; base 10 - right; base 2 - left; base 2 - right; base 1
C
What is the binary fixed point value for the decimal number 13.875? - 1001.0111 - This number cannot be represented in binary fixed point. - 1101.1110 - 1110.0101
C
What is the binary form for 78? - 1010110 - 1001100 - 1001110 - 1000110
C
What is the decimal value for the fixed point binary number 0100.0010? - 8.125 - 110 - 4.125 - 4.2
C
What is the value of the '1' in the octal number 0123? - eight - one - sixty-four - one hundred
C
What makes Gray code cyclical? - Gray code is the inverse of traditional binary encoding. - The first and last number of any Gray code are equal. - The first and last number of any Gray code have a Hamming distance of one. - Gray code is used only rotary systems.
C
Which of the following does Bit stand for? - Bitter - Mini byte - Binary digit - Broad information technology - Binary information technology
C
Which of the following is an advantage to the binary number system? - It is easy to use for coding in computer language. - It is less likely to make computational errors. - All of the answers are correct. - It requires fewer computations.
C
Which of these is the correct binary representation of the number known as 100 in decimal? - 100 - 0x64 - 0110 0100 - 0144
C
Why can't Gray code numbers be added like binary numbers? - Gray code numbers are positionally weighted and binary is not. - Gray code has a different number of bits than its binary equivalent. - Binary numbers are positionally weighted and Gray code is not. - Gray code uses a different numerical base than binary.
C
A byte represents: - 6 bits of information - 4 bits of information - 1 bit of information - 8 bits of information
D
Convert the following binary into a decimal number: - 01101011 - 235 - 111 - 107 - 214
D
What base is being used if the letters A, B, C, D, E, or F appear as digits? - binary - octal - decimal - hexadecimal
D
What do machines utilize to represent a character on a computer or device? - Sum of Weights Method - Decimal - Recursive Diversion method - Binary
D
What is NOT a common application of Gray code? - Digital state transition - Analog to digital conversion - Digital counters - Binary arithmetic
D
What is another name for the binary number system? - The base-ten system - The hexadecimal system - The decimal system - The base-two system
D
What is the proper Gray code equivalent of the binary number 1011 - 1010 - 1001 - 1000 - 1110
D
Which method is best used for converting from binary to decimal? - Fraction Number - Mixed Number - Recursive Division - Sum of Weights
D
Which number system has places of five, twenty-five, and one hundred twenty-five? - Base four - Base ten - Base two - Base five
D
Which of the following violate the parameters of a byte? - 01001100 - 01101111 - 01110010 - 01121121 - 00100000
D
Which option below lists a significant advantage when using a digital signal? - lower collision ratio - ease in repair - inexpensive applications - higher rate of transmission
D
Which option below lists the function(s) of a modem? - frequency conversion - modulation - demodulation - modulation and demodulation
D
Which option below lists the type of signal denoted by a sine wave? - linear - digital - static - analog
D
Which option below lists the type of signal denoted by binary 1s and 0s? - analog - static - linear - digital
D
