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converts digital signal into an equivalent analogue signal
when a program does not compile because of syntax or lexical errors
records geometric and other information about the objects that make up an image
a value that does not change throughout the program
an electrical signal with voltage changes that are abrupt or in discrete steps
a number system that uses 0 and 1
a careful step-by-step simulation on paper of how an algorithm would be executed by a computer
the part of the routine that lists the parameters used to pass data into and out of the routine
a desired outcome
something that shows the data entered and the result from the program
a sequence of zero or more characters
a table that shows the outcome for given logical condition
a step or sequence of steps that are repeated until some condition is satisfied or while some condition is satisfied
a given where it is not immediately how to reach the goal
squeezes data into a smaller number of bytes than the data would occupy if uncompressed
a routine that may or may not return a value
the variable inside the routine uses a reference to the same memory location. the reference is the variable passed as a parameter
a description, independent of any programming language, of a process that achieves some task. it is a step-by-step procedure for solving a problem
a branch of computing that studies the use of computers to perform computational processes normally associated with human intelkect
when the programmer has made a mistake and the program output is incorrect
a number system that uses 0 to 9
code that resembles a programming language but that uses less syntax to express an algorithm and is independent of any real programming language
a description in a programming language of a process that achieves some useful result
a routine that is called as part of an expression and returns a value
shows the effect on the current state of an FSM of particular inputs and any corresponding output
a way of describing a FSM graphically. each state is represented by a circle and each transition by an arrow labelled with the input that causes the transition plus any output
an ordered set of values
a set of system objectives
the value of the calling code's variable is copied to the routine's parameter
a list of planned tests with their data or referring to a set of test data
the act or process of calculating or determining something by mathematical, logical or interactive methods
a set of system objectives
the study of a complex process in order to improve its efficiency
the difference between the original amplitude and its sampled value
when the program crashes or gets stuck in a loop
a whole composed of parts in orderly arrangement
a group of 8 bits
a text file with one record per line and the fields of each record separated by commas
things that can be used to reach a goal and impose constraints
used to challenge assumptions, establish facts and rules and define the boundaries of problem solving
of a vector graphic object, describes things such as the size, direction, thickness, shading, font size and typeface
a self-contained entity that results when a problem is divided into subproblems; each corresponding to a subproblem
a program that translates source code into executable object code
an initial situation
placeholders for variables supplied at call time
a component of a vector graphic such as a line, rectangle or circle
a whole number
can be one of two possible values
a variable declared at the beginning of a program and accessible from anywhere in the program
a variable that's part of a record
Nyquist's Theorum
a number with a decimal point and a fractional part
created when the pixels of an image are mapped to positions in memory that store binary codes representing the colour of each pixel
returns only the whole number part of a division
a location in memory that contains one or more data values
a sequence of printable characters, organised line by line
a data structure that groups a number of variables
a group of bytes
returns True or False
a process for coding sampled anagloue signals by recording the height of each sample in a binary electrical equivalent
measures what can and cannot be computed
a number system that uses 0 to 9 and A to F
data that varies in a continuous manner
the study of natural and artificial information processes
use digital means to generate audio signals resembling instrument sounds or the human voice
a system that is unlikely to malfunction
establishing the limits or rules about what can and cannot be done when solving a problem. these limits are a type of constraint
an operation that assigns a value to a variable
defines an ordered set of values such as integer, character, Boolean and enumerated types
the number of bits used to represent the colour of a single pixel in a bitmapped image
any letter, numeral or symbol in the given character set
a system for representing negative numbers
a collection of values of the same ordinal type with no associated order
contains mostly unprintable characters
a system that does not involve computers
converts analogue signal into an equivalent digital signal
consecutive steps or groups of steps processed one after another in the order that they arise
the quantity expressed as the number of dots/pixels per inch/cm
without guessing a solution before confirming it
updating a program to correct faults or improve features
a very restricted subset of the English language
the process of breaking a problem down through successive steps into smaller problems
an indented, numbered list of steps produced by stepwise refinement
the smallest addressable area in an image
a process that samples analogue signals at regular time intervals and produces electrical pulses of height proportional to the original signal's amplitude at the instant of samplin
a machine gthat consists of a fixed set of possible stated with a set of allowable inputs that change the state and a set of possible values
a check made by a program to see that the data entered is reasonable
a single binary digit
breaks a problem into smaller problems that are easier to work on
a quantity expressed as the number of pixels per row by the number of pixels per column
a way of representing the sounds made by a musical instrument
an electrical signal that varies in a continuous manner
a unique name given to a variable, procedure or function
data that takes the form of discrete values
a variable declared in a program block and accessible only within the program block
a language that has English-like keywords and commands to express the basic constructs of sequence, selection and iteration
a decision-making step
the list of drawing commands that recreate a vector graphic

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