Add content

main.md

@@ -431,12 +431,15 @@ Regn ut 1920x1080 x 24 bits
 
 \\[ 16\ bits \cdot 44100\ Hz \cdot (3 \cdot 60)s \cdot 2\ kanaler  \\] 
 
+Note:
+
+tegn en bølge, og vis frekvensen
+
 ---
 
 ## Encoding og Komprimering
 
- - 
+ - "Hvordan tolke dataen" 
- - 
  - Lossless vs lossy
 
 Note:
@@ -453,6 +456,10 @@ Note:
 
 \\[ A6B4A5B2 \\]  <!-- .element: class="fragment" data-fragment-index="1" -->
 
+Note:
+
+Rart for tekst, men gir mening for bilder -> Runlength encoding
+
 ----
 
 ### Eksempel på lossy komprimering
@@ -463,20 +470,86 @@ Dte e en eksmplstnig <!-- .element: class="fragment" data-fragment-index="1" -->
 
 Note:
 ikke vanlig for tekst, men akseptabelt for video/lyd/bilde
+Gjøres ofte på tjenester som messenger.
 
 ---
 
 # Algoritmer
 
-
+Note:
-
+Beskriver stegvis og nøyaktig hvordan man løser et problem
+Uten tolkning
+Pseudokode
 
 ----
 
+(Eksempel på pseudokode)
+
 ---
 
 ## Kompleksitet
 
+<table>
+<tr>
+<td>
+
+\\[ \mathcal{O}(1) \\]
+
+</td>
+<td>
+
+```python
+def f(lst):
+  print('Hi!')
+```
+
+</td>
+</tr>
+<tr>
+<td>
+
+\\[ \mathcal{O}(n) \\]
+
+</td>
+<td>
+
+```python
+def f(lst):
+  for item in lst:
+    print(item)
+```
+
+</td>
+</tr>
+<tr>
+<td>
+
+\\[ \mathcal{O}(n^2) \\]
+
+</td>
+<td>
+
+```python
+def f(lst):
+  for item in lst:
+    for itemOnceMore in lst:
+      print(item, itemOnceMore)
+```
+
+</td>
+</tr>
+</table>
+
+Note:
+brukes mer om dere skal programmere mye
+
+----
+
+Sorteringsalgortimer:
+
+- Bubble sort: \\(\mathcal{O}(n^2)\\)
+- Merge sort : \\(\mathcal{O}(n\ log\ n)\\)
+
 ---
 
 # Nettverk
@@ -491,9 +564,73 @@ ikke vanlig for tekst, men akseptabelt for video/lyd/bilde
 
 ### Historie
 
+- ARPAnet
+
+Note:
+Sponset av Dep. of defense, USA
+Kjellermaskiner, matte
+Ble ikke brukt aktivt hele tiden
+Overføre instruksjoner
+Maksimal utnyttelse
+Flere universiteter koblet seg på
+Ikke veldig planlagt
 
 ---
 
+### 5 lags modellen
+
+<img src="./static/graphics/network-stack.svg" width=40%/>
+
+Note:
+pakker
+pakket inn i hverandre
+
+----
+
+### Physical layer
+
+Note:
+Medium for kommunikasjon mellom 2 eller flere endrepunkter
+
+----
+
+### Data link layer
+
+Note:
+Etablert: Kommunikasjonsmedium
+
+Stabil overføring, og kontakt med andre ender
+
+----
+
+### Network layer
+
+Note:
+Etablert: Flere computere er koblet sammen
+
+Kommunikasjon gjennom flere computere.
+
+Oppfører seg litt som postkontorer
+
+----
+
+### Transport layer
+
+
+Note:
+Etablert: Link over mange computere.
+
+Stabil og sikker kommunikasjon til tross for forsvunnede pakker,
+
+----
+
+Etablert: Stabil og sikker kommunikasjon.
+
+Applikasjonsspesifikk data.
+
+---
+
+
 
 # Programvareutvikling
 

static/graphics/network-layers/application-layer.svg

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+<!-- Do not edit this file with editors other than diagrams.net -->
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static/graphics/network-layers/data-link-layer.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Do not edit this file with editors other than diagrams.net -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="41px" viewBox="-0.5 -0.5 121 41" content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2021-11-16T19:56:35.737Z&quot; agent=&quot;5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36&quot; version=&quot;15.7.4&quot; etag=&quot;IbcD921IvG8CMCEABXok&quot;&gt;&lt;diagram id=&quot;Vl8WDxM0K2OXE8GCHviM&quot;&gt;jZNNb8IwDIZ/Te5NAxMcR/nYYTtx2DlrTRORxlUItOzXLyUOpUJIU6Wqeew3iV+7TBRNv3OyVV9YgWF5VvVMrFmeL7JFeA/gGsHsTURQO11FxEew179AMCN61hWcJoke0XjdTmGJ1kLpJ0w6h9007YBmemora3gC+1KaZ/qtK6+orHk28g/QtUon84wiP7I81g7Pls5juRCr4YnhRqa9KP+kZIXdAxIbJgqH6ONX0xdgBmuTbVG3fRG939uB9f8R5FFwkeZMpa+ll4F8anukK/prsuVWGAxSzsSqU9rDvpXlEO3CHASmfGMofNDGFGjQ3bRinr8vtsvAT97hEVLEooUhGa2nMeBzluy6gPPQvyyN3w0LcwjYgHfXkEKCGVlMI8iXtO7GhvLUBvXQzKSTNEP1fefRx/BBVqbl2LJb7OG3EJs/&lt;/diagram&gt;&lt;/mxfile&gt;"><defs/><g><rect x="0" y="0" width="120" height="40" rx="6" ry="6" fill="#52a8f9" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 20px; margin-left: 1px;"><div data-drawio-colors="color: rgba(0, 0, 0, 1); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 15px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Data Link</div></div></div></foreignObject><text x="60" y="25" fill="rgba(0, 0, 0, 1)" font-family="Helvetica" font-size="15px" text-anchor="middle">Data Link</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>

static/graphics/network-layers/network-layer.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Do not edit this file with editors other than diagrams.net -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="41px" viewBox="-0.5 -0.5 121 41" content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2021-11-16T19:57:00.915Z&quot; agent=&quot;5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36&quot; version=&quot;15.7.4&quot; etag=&quot;QjCZ6WuEe09ZhCWpMr3E&quot;&gt;&lt;diagram id=&quot;AIpg-GV8FqL3Du3CeWKt&quot;&gt;jZPBboMwDIafJncg7dZzWbtdtksPO2fgkqghRqlb6J5+pHFKUVVpQkLk++0k/m2ELNvh3atOf2INVhRZPQj5Jopila3GdwCXCBYvMoLGmzqifAI78wsMM6YnU8NxFkiIlkw3hxU6BxXNmPIe+3nYHu381E418AB2lbKP9NvUpLmsZTbxDzCNTifnGSs/qjo0Hk+OzxOFlOvwRLlVaS+OP2pVY3+H5EbI0iNS/GqHEmywNtkW87ZP1Nu9PTj6T0IRE87Knrj0L6Ae/YGvR5dkybUoCGm5kOteG4Jdp6qg9uMMjExTa1neG2tLtOivufK1WG8XgR/J4wGS4tBBCEZHPAL5UiSrzuAJhqdl5TezxhkEbIH8ZQzhhAXby+OXp3U/NTNPLdB3jUxxiuenue08eTh+sI1pObXrqt39EnLzBw==&lt;/diagram&gt;&lt;/mxfile&gt;"><defs/><g><rect x="0" y="0" width="120" height="40" rx="6" ry="6" fill="#72bf41" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 20px; margin-left: 1px;"><div data-drawio-colors="color: rgba(0, 0, 0, 1); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 15px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Network</div></div></div></foreignObject><text x="60" y="25" fill="rgba(0, 0, 0, 1)" font-family="Helvetica" font-size="15px" text-anchor="middle">Network</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>

static/graphics/network-layers/physical-layer (1).svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Do not edit this file with editors other than diagrams.net -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="41px" viewBox="-0.5 -0.5 121 41" content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2021-11-16T19:56:03.344Z&quot; agent=&quot;5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36&quot; version=&quot;15.7.4&quot; etag=&quot;xqxc0QokOJiBWbAfkuAe&quot;&gt;&lt;diagram id=&quot;3G20tiJFlDmEMRTCvDpR&quot;&gt;jZJNb4MwDIZ/Te5A2qlnWLddJk3qYecMXBI1xCikBfbrFxqHD1WVJiSUPLZj+7UZL5rh3YpWfmIFmmVJNTD+yrLskBz8fwJjALsXHkBtVRVQuoCT+gWCCdGrqqDbODpE7VS7hSUaA6XbMGEt9lu3M+pt1lbU8ABOpdCP9FtVTlJb+2ThH6BqGTOnCVl+RHmpLV4N5WMZ5/n0BXMj4lvk30lRYb9C/Mh4YRFdODVDAXqSNsoW4t6eWOe6LRj3n4AsBNyEvlLrX3LslFeC6nNj1OTeFUxxKeN5L5WDUyvKydr7JfBMukaTuXMWL1CgRuuJQePd8jMaR7NO9yxqcgPrYHhafzqr4pcNsAFnR+9CATvSkfZsvvfL1NKotVxNLPoJWpR6fnkRyx9Ir3hd5nK3rXafH/8A&lt;/diagram&gt;&lt;/mxfile&gt;"><defs/><g><rect x="0" y="0" width="120" height="40" rx="6" ry="6" fill="rgba(255, 255, 255, 1)" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 20px; margin-left: 1px;"><div data-drawio-colors="color: rgba(0, 0, 0, 1); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 15px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Physical</div></div></div></foreignObject><text x="60" y="25" fill="rgba(0, 0, 0, 1)" font-family="Helvetica" font-size="15px" text-anchor="middle">Physical</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>

static/graphics/network-layers/transport-layer.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Do not edit this file with editors other than diagrams.net -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="121px" height="41px" viewBox="-0.5 -0.5 121 41" content="&lt;mxfile host=&quot;app.diagrams.net&quot; modified=&quot;2021-11-16T19:57:20.322Z&quot; agent=&quot;5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36&quot; version=&quot;15.7.4&quot; etag=&quot;uz7D5yJ0d0vVh0R64pXm&quot;&gt;&lt;diagram id=&quot;r2UyNdIQ4s-erphLrhNM&quot;&gt;jZPBbsIwDIafJvc2AQRXCtsuOzFp56w1TUQaV2mgZU+/lDiUCiFNlarms/8k/u0yUTTDu5Ot+sQKDONZNTCxY5yvs3V4j+AawWIlIqidriLKJ3DQv0AwI3rWFXSzRI9ovG7nsERrofQzJp3Dfp52RDM/tZU1PIFDKc0z/daVV1TWMpv4B+hapZPzjCI/sjzVDs+WzmNciO34xHAj016U3ylZYf+AxJ6JwiH6+NUMBZjR2mRb1L29iN7v7cD6/wh4FFykOVPpX07arkXn6YL+mky5lQWjMGdi2yvt4dDKcoz2YQoCU74xFD5qYwo06G5a8bbacb4JvPMOT5AiFi2MyWg9DUG+ZMmsCzgPw8vC8rtdYQoBG/DuGlJIsCCDaQA3tOynbuapB+qhk0kmaYDq+8aTieGDfEzLqV+32MM/IfZ/&lt;/diagram&gt;&lt;/mxfile&gt;"><defs/><g><rect x="0" y="0" width="120" height="40" rx="6" ry="6" fill="#f6d229" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 20px; margin-left: 1px;"><div data-drawio-colors="color: rgba(0, 0, 0, 1); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 15px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Transport</div></div></div></foreignObject><text x="60" y="25" fill="rgba(0, 0, 0, 1)" font-family="Helvetica" font-size="15px" text-anchor="middle">Transport</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>

static/graphics/sources/internet.drawio

@@ -1 +1 @@
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static/graphics/sources/network-stack.drawio

@@ -0,0 +1 @@
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