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Unix


Lesson 1

Author: Egoshkin Danila Igorevich

Plan

  1. Rating System Evaluation (RSE) - РСО
  2. Family Linux<-Minix<-Unix & Windows (Windows NT)
  3. Partition Managers
  4. File systems
  5. MBR vs GPT

Rating System Evaluation (RSE) - РСО


1. Labs - 4 labs - 60-70 points (on time)
Lab1 ~ 15, Lab2 ~ 15, Lab3 ~ 20, Lab3 ~ 20
2. Control works - 2 works 10 and 20 points = 30 points
3. Bonus (karma): 5-10 point attendance and activity

Linux Distributions

https://en.wikipedia.org/wiki/Linux_distribution https://distrowatch.com/
Ubuntu, Xubuntu, Zorin OS, Parrot OS, Puppy Linux, Arch Linux, Elementary OS (beautiful but slow), Deepin (CrossOver free only for Deepin)

Partition Managers


Windows Disk Management Interface (Интерфейс управления дисками Windows)
Mini Tool Partition Wizard
GParted

File systems
(Windows: FAT32, NTFS;
Linux: ext, ext2, ext3, ext4)

What is a file

What was the first file system to store human data?

O_o?

Books

Punched tape

Magnet tape

Spectrum

Spectrum

Compact Disc, CD

Compact Disc, CD

Compact Disc, CD - FileSystems


ISO 9660 - 1988
Joliet
Rock Ridge
Amiga Rock Ridge Extensions
El Torito
Apple ISO9660 Extensions
HFS, HFS+
Universal Disk Format
Mount Rainier

ROM cartridge

ROM cartridge

HDD

SSD

We will not create our own file system!!! Realy??? (StarWars)

VFS - Virtual File Systems

Archives: 7z, Zip, Rar, tar, Bin, Arc
Games: nif, dat, ...
Othre: doc, docx, ...

MBR vs GPT

MBR

GPT

On HHD do we write data from center to corner or from corner to center?

Speed


HHD - У жестких дисков и дискет первые цилиндры находятся на внешних дорожках, то есть от края к центру диска. В начала диска плотность секторов большая, соответственно и скорость выше, чем в конце.
CD - у них только одна спиральная дорожка, которая начинается от центра.

Cluster or Block (Unix)

Cluster or Block (Unix)

DataMining - Объединение нескольких однородных элементов, которое может рассматриваться как самостоятельная единица, обладающая определёнными свойствами.

Cluster or Block (Unix)


Структура диска:
(A) дорожка
(B) геометрический сектор
(C) сектор дорожки
(D) кластер

How to erase data from disk?

HDD - Why there is no one magnetic vault in Banks and Casinos?

HDD is Ferromagnetic

Thanks for your attention :)