PT1420 programming study guide – Flashcards
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steps of the program development cycle
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Design the program Write the code Correct syntax errors Test the executable code Debug the code
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What is a sequence
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default control structure; instructions are executed one after another. They might, for example, carry out a series of arithmetic operations, assigning results to variables, to find the roots of a quadratic equation ax 2 + bx + c = 0.
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application software
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Programs that make a computer useful for everyday tasks
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operating system
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the programs that control and manage the basic operations of the computer. It controls the internal operations of the computer's hardware, manages all of the devices connected to the computer, allows data to be saved to and retrieved from storage devices, and allows other programs to run on the computer.
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interpreter
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is a program that both translates and executes the instructions in a high-level language program. As the interpreter reads each individual instruction in the pro-gram, it converts it to a machine language instruction and then immediately executes it.
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syntax
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A set of rules that combine symbols and formatting to define the legal structure of a computer program. think of it as grammar most languages have their own syntax
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machine code
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Assembly language uses what type of instruction
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logical error
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is a mistake that does not prevent the program from running, but causes it to produce incorrect results. ( Mathematical mistakes are common causes of logic errors.)
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flow chart
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The graphical representation of all activities in a process including start, input and output, process and decision
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start or terminate
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oval
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data
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parallelogram
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process
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rectangle
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decision
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triangle
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relational operators
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compares values based on differences in their values. > Greater than = Greater than or equal to
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variable
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Used to store a value in memory that can be used in the program
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variable scope (local and global)
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a variable is only available to section of a program based on 1-where its declared 2-Its variable type
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logical operators
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compares two values based on Boolean (true-false). Logical operators include AND, NOT, OR.
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pseudo code
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Shorthand notation for programming which uses a combination of informal programming structures and verbal descriptions of code.
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Assembly language
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Which computer language uses short words also known as mnemonics for writing programs?
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Fetch-decode-execute
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cycle is used by the computer to execute instructions in a program
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Processing symbol
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represents an assignment statement in a flowchart
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Named Constant
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A value that cannot be changed during the programs execution is called
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Rectangle
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the module call is represented by a
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Hierarchy Chart
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used to visualize the relationship between modules
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Parameter
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the term used for the variable that receives an argument that passes into a module.
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Passing an argument by Value
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means that a copy of the argument's value is passed into the parameter variable.
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Global
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type of variable is visible to every module and the entire program
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A pass by reference argument
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means that the argument is passed.
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decision
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diamond
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Control
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structure is a logical design that controls the order in which statements executes
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sequential data
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circle
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Algorithm
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A set of well-defined logical steps that must be taken to perform a
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Which operator would make the following expression true
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NOT false true AND false true OR false
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local variable
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variable declared inside a module
