Computation

program

Set of instructions that control the operation of a computer.

programmer

A person who writes and tests computer programs.

hardware

the physical parts of a computer

CPU (Central Processing Unit)

The key component of a computer system, which contains the circuitry necessary to interpret and execute program instructions

Microprocessor

The central processing unit that is generally made from a single integrated circuit. They are located on smaller chips

Main Memory

stores data and information and is usually volatile; its contents are lost when electrical power is turned off. It plays a major role in a computer's performance. aka the RAM

secondary storage

Storage that is remote to the CPU and permanently holds data, even when the PC is turned off, such as a hard drive.

input

Data that is entered into the computer system via an input or storage device.

input device

data entered into the computer through a variety of devices such as a keyboard, microphone, scanner, flash drive, or mouse

output

the amount of something produced by a person, machine, or industry

output device

any hardware component that conveys information from a computer or mobile device to one or more people; video, display, and printer

system software

software responsible for the general operation of a computer system, including the operation of hardware, running application software, and file management. Examples include: anti-virus and android

Application Software

computer software created to allow the user to perform a specific job or task; examples: websites, emails, and browsers.

bit

A binary digit, a 0 or a 1. Has a negative or positive electrical charge

byte

a group of 8 bits; the limits are between 0 and 255

Assembly Language

Programming language that has the same structure and set of commands as machine languages but allows programmers to use symbolic representations of numeric machine code.

assembler

A(n) ____ reads assembly language code and converts it into machine language. a. control structure c. event handler b. assembler d. identifier

low-level language

A programming language that is designed to be easy for a computer to execute; also called machine language or assembly language.

high-level language

A programming language like Python that is designed to be easy for humans to read and write.

compliers

is a programming tool that translates source code into a object code

interpreter

translates a program into machine language one statement at a time

source cod

contains instructions written by a programmer specifying the actions to be performed by computer software

syntax error

An error in a program that makes it impossible to parse — and therefore impossible to interpret.

python modes

interactive and script modes

interactive mode

A way of using the Python interpreter by typing commands and expressions at the prompt.

script mode

A way of using the Python interpreter to read and execute statements in a script.