Computer Science and Coding Flashcards
What is a computer?
A computer is a portable library, a device that stores and process information. It preforms complicated problems and organizes and solves information.
What is computer science?
Computer science is the study of computers and how computer technology can be used to solve problems.
What is a computing system?
A computing system is the hardware and software that work together to make a computer run.
What is hardware?
Hardware is the body of the computer. Hardware is everything you can see and touch.
Name 4 pats of external hardware
Monitor, keyboard, mouse, and tower.
Name 4 parts of internal hardware.
Power source, motherboard, CPU, 24 prong cord.
Variable
A placeholder. A container used for storing a value.
Identifier
The name of the variable
Value
The definition or the information that the variable contains.
Declare
To create a variable within a program by giving it a name.
Assignment operator
The = symbol, which assigns values to variables.
What are the rules for naming variables
- Should be short and clear.
- Must begin with a letter of the alphabet.
- No spaces
- No special characters
What is a string?
A string is a type of variable that can store any kind of character, including special characters. They are placed inside quotation marks.
What is a numeric value?
This is anything to do with math or numbers. For example: Integers, whole numbers, and decimals.
What is a Boolean value?
A Boolean variables can only be true or false
