Powershell Commands Flashcards
Displays path of current directory
pwd
Lists files in current directory
ls
Changes the current directory
cd
Makes a new subdirectory inside the current directory
mkdir
Displays the contents of a file
cat
Executes python script
python
Open Jupyter notebook from current directory
jupyter notebook
CPU
Central processing unit, what’s next, 3.0 gigahertz means asks what’s next 3 billion times per second
Main memory
Used to store information the CPU needs in a hurry, almost as fast as CPU but all memory vanishes when turned off
Secondary memory
Used to store information but much slower than main memory but keeps info even when no power to computer. Ex are disk drives or flash memory
Network connection
A slower form of secondary memory that is not always connected
Program
A set of instructions to answer a CPU what’s next question
Interpreter
Reads the source code of a program as written by the programmer, parses the source code, and interprets instructions on the fly. Python is an interpreter.
Variable
A value to be remembered for later, stored data
Compiler
Needs to be handed the entire program in a file and it runs a process to translate the source code into machine language into a file for later execution.
