LECTURES

Syllabus

LS-00EN. Computer Networks Architecture & Operating Systems - Syllabus 2026. (pdf)

Online consultation in BBB, Tuesday 19:30-21:00 (login to ISMA Moodle and select Join session).

Lecture Slides

I. OS Overview

LS-01EN. Computers & OS Introduction (Evolution, Definition, Types). (pdf)

• 1. Look. The History of Computing 3000BC - 2020. (Youtube, 14 min)
• 2. Look. Evolution of Laptops 1975 - 2020. (Youtube, 10 min)

LS-02EN. Computers & OS - Concepts, Architectures, Structures. (pdf)

• 1. Read. Anatomy of the Linux kernel. (pdf)
• 2. Read. Linux kernel map. (png)
• 3. Read. Learn Linux 101: A Roadmap for LPIC-1. (IBM link)
• 4. Read.Cisco /DevIoT/DevOps/DevNet Certification. (CISCO link)

II. Storage Management

LS-03EN. OS Booting. Mass-Storage Systems. (pdf)

• 1. Look. BIOS, CMOS, UEFI - What is the difference? (Youtube, 5 min)
• 2. Online GUID / UUID Generator. (link) :-)
• 3. Look. What are RAID 0, 1, 5, and 10?. (Youtube, 5 min)
• 4. Look. RAID 5 vs RAID 6. Mass-Storage Systems. (Youtube, 4 min)
• 5. Look. NAS vs SAN - Network Attached Storage vs Storage Area Network. (Youtube, 4 min)
• 6. Look. Incremental vs Differential Backup, & Full - Explained. (Youtube, 7 min)
• 7. Read. Using RAID6 for Advanced Data Protection. (pdf)
• 8. Read. Customizing and monitoring Linux system startup. (IBM link)

LS-04EN. File-System Interface. (pdf)

LS-05EN. File System Implementation. (pdf)

LS-06EN. File System Examples. (pdf)

• 1. Look. Linux File System Hierarchy. (Youtube, 16 min)
• 2. Read. Filesystem Hierarchy Standards FHS-1,2,3. (link)
• 3. Read. Understanding Linux configuration files. (IBM link)
• 4. Read. Most Commonly Used Linux Commands You Should Know. (Tecmint link)
• 5. Read. Linux File System directories. (png)

III. Security Management

LS-07EN. OS Protection Concepts. Access Control Models. (pdf)

• 1. Look. Fundamental Concepts of Security Models - CISSP. (Youtube, 8 min)
• 2. Read. NIST Special Publication 800-162 (ABAC). (link)

LS-08EN. Managing User Accounts on Linux. (pdf)

• 1. Read. 6 password cracker & hacking tools + online password protection tips. (link)

LS-09EN. OS Permissions. SUID/SGID/Sticky Bits. Extended Attributes. (pdf)

• 1. Read. File permissions and attributes.
• 2. Read. Extended attributes manage: chattr & lsattr. (link)
• 2. Read. Learn Linux 101: Perform security administration tasks. (IBM link)
• 3. Read. Learn Linux 101: Manage file permissions and ownership. (IBM link)

IV. Process Management

LS-10EN. Process Management. (pdf)

• 1. Look. Operating Systems - Process Manager. (Youtube, 5 min)
• 2. Soft. Windows Process Explorer. (link)
• 3. Read. Understanding process thread priorities in Linux. (link)
• 4. Read. Thread Priorities in Windows. (link)
• 5. Read. Crontab.guru. (link)
• 6. Read. Демон cron примеры. (link)

V. Memory Management

LS-11EN. Memory Management. (pdf)

LS-11RUa. Управление памятью. (pdf)
LS-11RUb. Управление памятью - сегментация. (pdf)
LS-11RUc. Управление памятью - замещение страниц. (pdf)

VI. I/Os Management

LS-12EN. I/O Devices. (pdf)

LS-12RU. Устройства ввода-вывода. (pdf)

VII. Distributed and Embedded Systems

LS-13EN. Distributed File Systems. (pdf)

*LS-14EN. Essential Guide to Embedded Operating Systems. (link)

• Read 1. Top 4 Embedded Operating Systems with Examples. (link)

VIII. Future Systems

*LS-15EN. Experimental & Future Computing Systems. (pdf)

• Read 1. Understanding The Security Vendor Landscape Using the Cyber Defense Matrix. (link)

LS-xxLV. Slackware Linux pamati. Neoficiāls LV tulkojums. - Tulkojums: Alvils Bērzinš.
Lekcijas (lps): 2.1, 4.1, 8.1-8.4, 9.1-9.5, 10.1-10.7, 11.1-11.5, 12.1-12.3, 13.1-13.3, 13.8, 15.3, 16.

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Quizzes & Exam

Pre-Exam Practice Testing

• UNIX/Linux Interview Questions. (link)
• UNIX/Linux Online Quiz. (link)
• UNIX/Linux Online Test [20q/20min]. (link)

IT ACADEMY Online Testing System (link)

• Look 1. Dictionary file for testing REs on the exam.
  (wget https://sys.academy.lv/exam/45427words.txt), (txt, 400 KiB).

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