Raspberry Pi_Eng_06.1.1 Basic Diagram of Sysem Configuration

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6.1 Overview of System Connection

6.1.1 Basic Diagram of Sysem Configuration

Modern large computer systems usually have the following configuration and interrelationships each other.

At the center of the computer system framework is the central computer responsible for handling all the computers in the system configuration. This central computer usually consists of one or more main server computers and a console computer for system administrators who manage those computers is connected toit. These are typically managed within a computer room or data center that is managed separately under special control, control access through a variety of physical security devices, and control many unauthorized external connections using many network security devices.

Raspberry Pi_Eng_06.0 Chapter 6 System Connection & Termination

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Chapter 6 System Connection & Termination

Chapter’s Main Topics

This chapter will briefly discuss the basic concepts and related terms of modern computer system and system access in a network environment. It also guides you through the procedure and method of termination according to the system connection method.

It includes descriptions on the following topics:
■ Overview of system connection

■ Local connection

■ Sysem connection and termination

Raspberry Pi_Eng_05.4 System Termination

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5.4 System Termination

5.4.1 How to Terminate the System

To exit from a system running on a Linux system, you can use the following command:

■ Shutdown — Shut down the system normally.

■ Halt — halt the sysem.

■ Reboot — Halt the system, shut it down, and restart the system.

Raspberry Pi_Eng_05.3 Sysetm Logout

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5.3 Sysetm Logout

5.3.1 Meaning of Logout

Logout is to terminate processing for a particular user who is logged on to the system, leaving the entire operating system intact. Therefore, all the jobs that the user is processing are stopped, and when all the specified jobs are stopped, all the system resources used by the user are released, and the system is disconnected from the user. Logging out a specific user account will only terminate that account and will not affect other user accounts running on the system.

Raspberry Pi_Eng_05.2 System Logon

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5.2 System Logon

5.2.1 Meaning of Logon

“Logon” means that a “worker” is assigned to perform work on a computer system, obtain work privilege, and enter the computer system. In a computer system, the worker is usually represented as a “user account”, and an ID is assigned to the account different from other user accounts, and each ID is also usually designated with a password. Therefore, in the logon process, the user account ID and the password for the account are input to check whether the corresponding ID is already registered or the password is matched with the one registered with the corresponding ID.

Raspberry Pi_Eng_05.1 Meaning of Booting

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5.1 System Booting

5.1.1 Meaning of Booting

Once the operating system is installed on the system, the system can be started. Booting is the process by which an installed operating system program starts to work, read all the basic programs needed for system operation from the storage device, move it into memory, and then make it ready to run.

Raspberry Pi_Eng_05.0 Chapter 5 System Startup and Shutdown

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Chapter 5 System Startup and Shutdown

Chapter’s Main Topics

This chapter describes how to operate the Raspberry Pi system with the operating system installed. It describes the basic procedures for how to start, use, and exit the system.

It includes descriptions on the following topics:
■ System booting

■ System logon

■ System logout

■ System shutdown

Raspberry Pi_Eng_04.6.3 Operating Operating System Installed

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4.6.3 Operating Operating System Installed

When the image copy operation for the operating system is completed on the SD card, the installation work for the system is completed. No additional installation work is required.

Connect all external devices such as monitor, keyboard and mouse to the Raspberry Pi system. Prepare the system so that can connect internet access by connecting the LAN cable.

Raspberry Pi_Eng_04.6.2 Copying Image File to SD Card

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4.6.2 Copying Image File to SD Card

You should copy the prepared image file to the prepared SD card and make the SD card with the operating system installed.

If you copy an image file to an SD card just like you would copy a regular file, the image of the operating system will not be copied correctly. It must be copied to the SD card in the way that the image is transferred to the SD card.

Raspberry Pi_Eng_04.6.1 Downloading and Preparing Operation System Image File

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4.6 Installation Using Operating System Image

4.6.1 Downloading and Preparing Operation System Image File

Download the image file for the operating system you want to install from Raspberry Pi official homepage or other sources. Downloaded data is provided in various compressed file formats. Depending on the situation of the user who installs it, download the appropriate format file, and extract the compressed file according to each compression format and prepare the image format files.