ENSC 26 1st Long Exam Reviewer Questions
With Correct Answers
Exit Statements Used when you want to exit loops before reaching the number of times
specified by the initial conditions of the loop.
Exit For -Exits a For...Next or For Each... Next Loop immediately
Exit Do -Exits a Do... Loop statement immediately
computer hardware refers to all physical components that make up the computer system.
computer software machine-readable instruction which controls the behaviour of a
computer system.
system software operates and controls the computer hardware and provides a platform for
running application software
application software any program that extends the functionality of the computer beyond
running of the computer itself
digital device Works with discrete (distinct or separate) numbers or digits such as 0s and
1s
•e.g. traditional light switch
two discrete states: on and off = digital device
,analog device Operates on continuously varying data
•e.g. dimmer switch
Has rotating dial: increases or decreases brightness smoothly over a range from bright to dark =
analog device
binary number system, binary code In a digital computer, each number or letter is
fundamentally represented by a combination of 1 and 0 that is equivalent to "on" and "off"
electrical signals, respectively.
Since there are only two symbols, this method of is known as the ____________________ and
the number formed by this system is called a _______.
binary digit or bit single numeral in a binary code
byte Eight bits grouped together is called a
256, 0 to 255. a single byte could represent _____ possible values ranging from ______
parity bit a special ninth bit that is added to a byte to prevent error during reading and
writing of data.
parity bit system counts the number of 1s in a byte and assigns itself a 1 or 0 value
depending whether the counting is in favor of even or odd total number of 1s.
, numeric data or character data. the coding scheme depends on whether the data is
________ and _________
Numeric Data Consists of numbers that represent quantities
Used in arithmetic operations
Represented by different number systems (depending on the number of symbols used to
represent numbers)
Character Data Composed of letters, symbols, and numerals that will not be used in
arithmetic operations
Represented using codes such as ASCII, EBCDICand Unicode
ASCII or American Standard Code for Information Interchange ◦7 bits per character
◦128 codes (2^7)
◦Encoding for English text
EBCDIC or Extended Binary-coded Decimal Interchange Code ◦8 bits per character
◦256 codes (2^8)
◦Established by IBM
Unicode or Universal Code ◦16 bits per character
◦65,536 codes (2^16)
With Correct Answers
Exit Statements Used when you want to exit loops before reaching the number of times
specified by the initial conditions of the loop.
Exit For -Exits a For...Next or For Each... Next Loop immediately
Exit Do -Exits a Do... Loop statement immediately
computer hardware refers to all physical components that make up the computer system.
computer software machine-readable instruction which controls the behaviour of a
computer system.
system software operates and controls the computer hardware and provides a platform for
running application software
application software any program that extends the functionality of the computer beyond
running of the computer itself
digital device Works with discrete (distinct or separate) numbers or digits such as 0s and
1s
•e.g. traditional light switch
two discrete states: on and off = digital device
,analog device Operates on continuously varying data
•e.g. dimmer switch
Has rotating dial: increases or decreases brightness smoothly over a range from bright to dark =
analog device
binary number system, binary code In a digital computer, each number or letter is
fundamentally represented by a combination of 1 and 0 that is equivalent to "on" and "off"
electrical signals, respectively.
Since there are only two symbols, this method of is known as the ____________________ and
the number formed by this system is called a _______.
binary digit or bit single numeral in a binary code
byte Eight bits grouped together is called a
256, 0 to 255. a single byte could represent _____ possible values ranging from ______
parity bit a special ninth bit that is added to a byte to prevent error during reading and
writing of data.
parity bit system counts the number of 1s in a byte and assigns itself a 1 or 0 value
depending whether the counting is in favor of even or odd total number of 1s.
, numeric data or character data. the coding scheme depends on whether the data is
________ and _________
Numeric Data Consists of numbers that represent quantities
Used in arithmetic operations
Represented by different number systems (depending on the number of symbols used to
represent numbers)
Character Data Composed of letters, symbols, and numerals that will not be used in
arithmetic operations
Represented using codes such as ASCII, EBCDICand Unicode
ASCII or American Standard Code for Information Interchange ◦7 bits per character
◦128 codes (2^7)
◦Encoding for English text
EBCDIC or Extended Binary-coded Decimal Interchange Code ◦8 bits per character
◦256 codes (2^8)
◦Established by IBM
Unicode or Universal Code ◦16 bits per character
◦65,536 codes (2^16)
