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Language consists of a set of strings (syntactically correct programs) of characters from some alphabet of symbols. Grammar -Formal definition of the syntax of the language. -It naturally defines the hierarchical structure of many PL's. Source: My CMSC 124 (Design and Implementation of Programming Languages) Teacher
Syntax analysis (parsing) is to determine a text is conform to a predefined rule. A rule is the format, the sequence, to compose an element or abstraction (words, fields, tokens, nodes in xml, area code in a sequence of digits, etc.). Grammar is a collection of these predefined rules.
Computers only understand machine code. Low-level Assembler language and all high-level languages must be assembled or compiled to machine code in order to execute. However, the computer itself can be programmed (with a machine-code program) to generate the required machine code from either a low-level or high-level input. Low-level Assembler is an almost one-to-one translation of symbols and mnemonics to machine code whereas high-level languages often compile to object code which is then linked to produce machine code. Interpreted high-level languages are not compiled to machine code but are interpreted by another program, an interpreter, which translates each line of high-level code into the required machine code at runtime. Java, for instance, compiles to byte code suitable for the Java virtual machine. The JVM is a machine code program that interprets the byte code to produce machine-specific machine code. As a result of this interpretation, Java programs are much slower than machine-coded implementations of the same program.
Binary code is a system of representing data using two symbols, typically 0 and 1, which corresponds to the on and off states of a computer's electrical signals. The program generated by the compiler after translation is called "machine code" or "object code." This machine code is what the computer's processor can execute directly, as it is tailored to the specific architecture of the machine.
ASCII-represents letters, numbers and symbols in a 7 bit code of 1's and 0's called binary. It is a standard developed in the 1960's for information interchange between data processing equipment (teletype and computers)
getting symbols?
PFATX
nice
A sytem of words or symbols
cipher
There is no code. You have to copy and paste it. ♫ ♪
BAUDOT code uses 5-bit combinations, which allows for a total of 2^5 or 32 unique symbols.
32
Signals or symbols that communicate something
A code scheme is a system for converting information into a specific set of symbols.
I don't remember the symbols to it, but the symbols should spell out OPEN i believe.
I P and E