IT Concepts and Terminology Flashcards
What is binary?
A binary code represents text, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often “0” and “1” from the binary number system. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc.
Benefit to binary notation?
The binary schema of digital 1s and 0s offers a simple and elegant way for computers to work. It also offers an efficient way to control logic circuits and to detect an electrical signal’s true (1) and false (0) states.
What is Hexadecimal?
hexadecimal uses sixteen distinct symbols, most often the symbols “0”–”9” to represent values 0 to 9, and “A”–”F” (or alternatively “a”–”f”) to represent values from ten to fifteen.
Benefit to Hexadecimal notation?
The biggest advantage of the hexadecimal system is the compactness of its numbers, since fewer digits are required to represent a number than in binary or decimal notation. This is thanks to its base of sixteen. And it’s relatively easy to convert binary numbers into hexadecimal numbers and vice versa
What is decimal?
standard system for denoting integer and non-integer numbers.
Benefit to decimal notation?
Decimal numbers are used in situations where more precision is required than the whole numbers can provide
What is ASCII?
ASCII (pronounced “az-kee”, “ass-key” if American), is a table of characters for computers. It is binary code used by electronic equipment to handle text using the English alphabet, numbers, and other common symbols. The code includes definitions for 128 characters, which are assigned numbers from 0 to 127. Numbers 32 to 126 stand for letters, numbers and symbols such as abc, ABC, 123, and ?&!. Numbers 0 to 31 and the number 127 stand for characters that control how text is processed and are not printed
Does ASCII stand for?
American Standard Code for Information Interchange
Benefit to ASCII ?
It enables developers to design interfaces that both humans and computers understand. ASCII codes a string of data as ASCII characters that can be interpreted and displayed as readable plain text for people and as data for computers. Programmers use the design of the ASCII character set to simplify certain tasks.
What is Unicode?
Unicode text is processed and stored as binary data using one of several encodings, which define how to translate the standard’s abstracted codes for characters into sequences of bytes.
Benefit to Unicode ?
One of the main benefits of Unicode is its ability to support multilingual environments. By using a unified encoding system, it enables seamless communication and data exchange across different platforms and devices.
