Term
| what are the two components of the cpu? |
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Definition
| the control unit and the arithmatic logic unit |
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Term
| What is the purpose of the control unit? |
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Definition
| to use computer operations |
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Term
| What is teh fetch/decode/execute cycle? |
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Definition
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Term
| Define fetch in the process? |
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Definition
| CPU fetches from main memory, the next instruction in the the sequence of program instructions |
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Term
| Define decode in the process of fetch, decode, execute? |
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Definition
| instruction is encoded into a number, control unit decodes it and generates an electronic signal |
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Term
| Define execute in the process of fetch, decode, execute? |
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Definition
| signal is routed to appropriate component of the computer (any device) causes component to perform operation |
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Term
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Definition
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Term
| What is secondary memory? |
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Definition
| any long term storage device |
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Term
| What are the five components of any computer system? |
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Definition
| 1)CPU 2)Input 3)output 4)Main memory 5)Secondary storage |
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Term
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Definition
| set of well defined steps for performing a task or solving a problem |
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Term
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Definition
| C++ program can be written on one type and run on another with litle modification |
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Term
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Definition
| statments written by programmer |
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Term
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Definition
| set of code in C++ used for mathematic functions |
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Term
| What is the purpose of the preprocessor? |
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Definition
| It finds lines with #, allows it to modify the source code |
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Term
| What is the purpose of the compiler? |
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Definition
| translates source code to machine language and looks for syntax errors |
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Term
| What is the purpose of the linker? |
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Definition
| links the program to the run time library and makes the code executable |
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Term
| Define integrated development environment? |
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Definition
| includes text editor, compiler, debugger, and other utilities |
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Term
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Definition
| specific meaning, can only be used for that purpose, always written in lower case |
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Term
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Definition
| perofrm operations on one or more operands, i.e. a piece of data |
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Term
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Definition
| the rules of a computer system |
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Term
| the use of the = sign can be called what? |
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Definition
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Term
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Definition
| named storage location in computer's memory for holding a piece of information |
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Term
| Where are variables stored? |
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Definition
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Term
| what is the difference between variable definition and variable declaration? |
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Definition
| defintion always cause a variable to be placed in memory, declartions do not always have to |
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Term
| What are the 3 primary activities of a program? |
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Definition
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Term
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Definition
| mistakes that cuase a program to produce erroneous results |
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Term
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Definition
| programmer reads part of the program and steps through each statment |
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Term
| what is the purpose of procedural programming? |
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Definition
| make a program that prodcues a specific task |
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Term
| what is the function of // ? |
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Definition
| beginning of a comment, ignored by computer, runs to end of line |
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Term
| define a preprocessor directive? |
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Definition
| i.e. #, preprocessor reads program, looks for #, and only executes those lines, 'set up' to compiler |
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Term
| what is the purpose of the iostream? |
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Definition
| a files that allows C++ to display out on screen and read from keyboard |
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Term
| what is the purpose of the namespace std? |
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Definition
| declares that program will be accessing entries whose names are part of the namespace called std, must be set with entities in the iostream |
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Term
| what is the purpose of int main ()? |
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Definition
| this is the beginnig of a function, starting point of the program |
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Term
| what is a string literal or string constant? |
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Definition
| the characters inside quotation marks |
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Term
| what is the purpose of return 0; ? |
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Definition
| sends the interger value 0 back to OS upon completion, 0 usually indicates success |
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Term
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Definition
| marks beginning of preprocessor directive |
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Term
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Definition
| encloses a filename, used with # include directive |
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Term
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Definition
| used in naming function, i.e. int main () |
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Term
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Definition
| enclsoes a group of statments |
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Term
| what is a variable definition and give an example? |
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Definition
| int number, assigning a definition to a variable |
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Term
| what is the difference between a string literal and an integer literal? |
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Definition
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Term
| what are the 2 rules for legal identifiers (1 of 2)? |
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Definition
| 1) first character underscore or a-z or A-Z, |
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Term
| what are the 2 rules for legal identifiers (2 of 2)? |
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Definition
| 2) after first character, a-z, A-Z, underscore 0-9 |
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Term
| what is the purpose of an unsigned data type? |
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Definition
| only to store non-negative numbers |
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Term
| how can you define two variables (i.e. x and y) in one line? |
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Definition
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Term
| how do you force an integer literal to be stored as a long integer, i.e 32? |
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Definition
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Term
| what does ASCII stand for? |
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Definition
| american standard code for information |
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Term
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Definition
| essentially its an integer data type |
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Term
| how do you define a char literal, i.e. x? |
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Definition
| char letter; letter= 'x'; |
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Term
| How is a string (i.e. ghost) stored? |
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Definition
| it is stored consecutively in memory, ghost\0 = 6 bytes |
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Term
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Definition
| a string of characters stored in memory with null terminator of the number 0 |
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Term
| what is a floating point number? |
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Definition
| any real number i.e. fractional |
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Term
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Definition
| the actual number in scientific notation, 4.6e10-> the mantissa is 4.6 |
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Term
| define float (single precision)? |
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Definition
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Term
| define double (double precision)? |
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Definition
| +/- 1.7E-308 to positive E-308 |
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Term
| Define long double precision (long double)? |
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Definition
| 1.7E-308 to positive but in some computers +/-3.4E-4932 to +/-1.1E4832 |
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Term
| is there such thing as an unsigned floating point data type? |
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Definition
| No, because float, double and long double store negative numbers also |
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Term
| how are floating point literals stored in memory? |
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Definition
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Term
| How do you force a literal to be stored as float? |
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Definition
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Term
| How do you force a literal to be stored as a long double? |
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Definition
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Term
| What happens when you assign a floating point to an integer variable such as int i; float f; f=7.5; i=f? |
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Definition
| i=7, it is truncated and not rounded |
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Term
| What happens if a floating point is stored as an integer and the floating point is too large? |
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Definition
| an invalid value will be stored |
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Term
| What is a boolean variable? |
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Definition
| set to either true or false |
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Term
| define initialization, give an example? |
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Definition
| declaring a variable and assigning it at the same time; i.e. int month; int days; month=2, days=30 OR int month=2, days=30 |
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Term
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Definition
| part of the program where the variable may be used, you can't expect to use the variable before you define it |
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Term
| what happens when you divide 2 integers, i.e. 17/3? |
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Definition
| the remainder is discarded |
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Term
| how would you divide 2 integers (17/3) and show remainder? |
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Definition
| make 17 floating point 17.0 |
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Term
| how do you open and close multi line comments? |
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Definition
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