The creators of BASIC wanted a language that felt more like regular English. Some applications used to have their own variety of BASIC for writing their macros, Microsoft Visual Basic for Applications is an example of a subset of BASIC that is modified to help users write small subprograms called scripts or macros for use withĪpplications like MS Word.
Basic programming language example windows#
Visual Basic is now very popular for programming Windows applications. A wide variety of "dialects" of BASIC developed through the years. But the language has proven to be highly useful in the real world. Originally BASIC was intended only for classroom use. This language was written in 1964 (truly the age of dinosaurs for computers!) for college students to use to learn programming concepts.
Basic programming language example code#
= Beginner's All Symbolic Instruction Code Look at the PROCEDURE DIVISION to see where the calculation is done. The example below accepts two numbers, multiplies them, and displays the numbers and the result. Likely that COBOL programs will be around for a long time yet. These programs were upgraded during the Y2K fixes It is a good language for direct, simple programs.ĬOBOL was used to create many programs for the main frames of large companies. But it has the disadvantage of tending toward wordy, lengthy programs. This helps business people who are not high-powered programmers to be able to write or edit a program. It has a very English-like structure, using sentences and paragraphs, though they are certainly different from those in a novel. The example Fortran program below accepts the bus number 99 and displays the command "TAKE BUS 99" PROGRAM IDEXMPĬOBOL was written about 1960 with business applications in mind. Required but recent version names can use normal case.)
The most recent standard version is Fortran 2008 which wasįinalized Sept.
It was the first successful high-level program. Sub AL,7h If no, makes the minus operation 7hįORTRAN was created around 1957 to help scientists, engineers, and mathematicians write programs that describe complex situations, like nuclear power plant monitoring, nuclear explosions, and space flight. Jle digit2 If true, gets the second digit number
Sub AL,30h repeats the conversion operationĬmp AL,9h compares the value 9h with the content Shl DL,CL multiply to convert into four bits upper Sub DL,7h If it false, makes operation minus Jle digit1 If it true gets the first number Sub DL,30h makes the operation minus 30h toĬmp DL,9h compares if digit number it was Mov DL,AL moves the ASCII code to register DL Notice that each little step must be coded. It's there to explain the program to anyone looking at the code. The text to the right of the semicolons ( ) is ignored by the computer. The assembly language program below reads two characters and prints them on the screen. So instead of having to remember a string of 0's and 1's, the programmer would only need to remember short codes like ADD, MOV, or JLE. In an assembly language each machine language instruction is assigned a code. = Codes or abbreviations for the machine language instructions The segment of Java code: int counter = 0 Here's another example of machine language. In the program segment at left the first column tells the computer where to fill memory and the hexadecimal (base 16) numbers in the second column are the values to put into memory at those locations.įor more information on hexadecimal numbers, see Base Arithmetic. Machine language looks like it's just numbers. So it is made up of sets of 0's and 1's, that is binary numbers. This is the set of instructions that the chip uses itself.
Types of computer languages and see what they are used for.Įach design for a CPU has its own machine language. Let's check out some examples of the various They each have advantages for certain kinds of tasks. Many computer languages are available for writing computer programs. Jan's Computer Basics: Programming: Languages