Linux

Starting Linux

Electricity flows from the external electrical grid, through the electrical cord to the power supply. The power supply converts the 120 volt energy from the grid into voltages that the computer can use. A .5 volt signal from the power supply is connected to the clock.

The clock is the timer, which makes sure all the different pieces of the puzzle are synchronized. The power on self check makes sure all the hardware is working properly. The Central Processing Unit (CPU) and Graphical Processing Unit (GPU) are energized and the file system tells them how to convert the raw electrical power they get from the power supply into intelligent information.

UEFI starts up and calls the bootloader from memory to the processor. The boot loader then starts the Linux kernel. The Linux kernel takes over and starts systemd. systemd then starts your desktop and all the other applications that run on your computer. The file system is a complicated table of contents that tells all the programs Linux is made of, how and where to find each other.

The Linux Kernel is the mysterious black box that does all the calculating and processing to get your hardware and operating system to work together to produce your desktop and all the applications running on your computer.

systemd is Ubuntu Linux’s all in one controller that manages your desktop and all the applications that run on it. systemd is process #1 and it creates and manages all other processes.

Your desktop displays the output of your computer on your monitor. It is where the action is. It is your work station, your art gallery. It is one of the most important tools in your studio.

Networking involves connecting all your computers to each other and to the Internet. As long as you have an Internet connection, Linux is always automatically connected to it.