Comprehensive Study Guide for Digital Fundamentals and Data Processing

Binary: This is a numerical system that exclusively uses the digits $0$ and $1s$ .
Digital data: This term refers to data representation that utilizes binary values, specifically $0$ and $1s$ .
Analog data: This is defined as data that changes in a smoothly and continuously varying manner.
ASCII: This is an acronym for a specific list of numbers assigned to represent letters and symbols in a computer system.
Radix point: Formally known as the decimal point, this represents the separation between the integer (int) and fractional parts of a numerical value.

Character: A single unit of data that can be a digit, a single letter, or a symbol.
Character set: A comprehensive list of all the characters that a computer is programmed to use.
Data types: These are specific categories of data that define exactly what kind of value can be stored in a given variable or field.
Boolean Expression: This refers to a statement that evaluates to only one of two possibilities: true or false.
Declaration: A type of statement that specifies the name and the data type of a variable or object, but does not yet assign a specific value to it.
Control structure: A foundational component of programming that tells the program what specific action or logic to perform next.
Overflow: This error condition occurs when an operation tries to store something that is too big for the space currently available in memory.

Keyword encoding: A method used for compressing data by replacing long words with shorter, more efficient codes.
Huffman encoding: A specific way of compressing data that is based on the frequency of occurrence of the data elements being encoded.
Lossless: A category of data compression where no information is lost during the compression or decompression process.
Lossy: A category of data compression that reduces the file size by intentionally eliminating some information.

Bandwidth: This measures the capacity of a communication channel, specifically how much data can travel through it at one time.
Pulse-code modulation (PCM): A methodology used to turn analog sound into digital data.