diff --git a/main.md b/main.md index b0adb45..063f973 100644 --- a/main.md +++ b/main.md @@ -28,19 +28,24 @@ men som er viktig for å forstå innholdet. --- -## Generelt +## Hva er Informasjonsteknologi -Hva er IT - -Kort Historie +- Flytting og prossesering av data +- Datamaskiner +- Punchcards +- Elektroniske datamaskiner +- Nettverk --- -### Folk som er viktige +### Et par viktige personer - - -- Von Neumann +- Ada Lovelace: Verdens første programmør +- Herman Hollerith: Punchcards og matematikk +- Konrad Zuse: Verdens første programmerbare datamaskin +- John von Neumann: Diverse, Neumann-arkitektur +- Alan Turing – Matematisk grunnlag for datamaskin +- Douglas Engelbart – Datamusen, mye interaksjondesign --- @@ -51,7 +56,7 @@ Kort Historie
- - PC + - PC - Operativsystem - Abstraksjon - Transistorer @@ -62,7 +67,6 @@ Kort Historie - Hardware - Software - - Kernel - Protokoll - WWW/Internet - High level/Low level @@ -78,21 +82,138 @@ Forklar hvordan en transistor funker ---- - -
-- PC + - Abstraksjon
+```python +def goForAWalk(): + put_on_clothes() + open_the_door() + walk() + +def open_the_door(): + put_hand_on_handle() + shove_hand_down() + push_door() + +def put_hand_on_handle(): + lift_hand() + move_hand_over_handle() + lower_hand() +``` +
---- +
+
+ + - Transistorer + +
+
+ + "Elekrisk bryter" + + + +
+
+ +---- + +
+
+ + - Integrated Chip + +
+
+ + Elektronisk abstraksjonslag + + + + +
+
+ +---- + +### Et par begreper: + +
+
+ + - PC + - Operativsystem + - Abstraksjon + - Transistorer + - IC + +
+
+ + - Hardware + - Software + - Protokoll + - WWW/Internet + - High level/Low level + - bit + +
+
+ +---- + +
+
+ + - WWW/Internett + +
+
+ + **www**.website.com + + + +
+
+ +---- + +### Et par begreper: + +
+
+ + - PC + - Operativsystem + - Abstraksjon + - Transistorer + - IC + +
+
+ + - Hardware + - Software + - Protokoll + - WWW/Internet + - High level/Low level + - bit + +
+
+ ---
@@ -146,6 +267,8 @@ Objekter ### ASCII, UNICODE, UTF-8 + + --- @@ -298,6 +421,8 @@ brukt ca. 20 min - Signed magnitude - Two's compliment +TODO: add diagrams + Note: Signed magnitude @@ -354,10 +479,6 @@ Ikke veldig viktig, men kan være oppklarende. - CPU - Minne ---- - -# Datamaskin - Note: Består av mange forskjellige biter. @@ -393,6 +514,11 @@ Setter du disse på rad, så har du et program. ---- +### Arithmetic Logic Unit (ALU) +### & Control Unit (CU) + +---- + ### Fetch-Decode-Execute Cycle @@ -463,8 +589,6 @@ Setter du disse på rad, så har du et program. EX - - Note: *5 steg* hver gang den skal kjøre en instruksjon @@ -512,21 +636,42 @@ CD, DVD, Ekstern harddisk, USB, osv. --- +### Datamaskin + +
+
+ +- Hovedkort +- CPU +- Minne (Primær og Sekundær) + +
+
+ +- Strømforsyning +- Kabinett +- Kjøler +- Ekstra prosessorer? +- Ekstra IO? + +
+
+ +--- + # Digital Representasjon --- ## Analog/Digital - -
-
+
- ADC - inn på computeren - DAC - ut fra computeren @@ -609,7 +754,7 @@ Regn ut 1920x1080 x 24 bits
- +
@@ -620,7 +765,7 @@ Regn ut 1920x1080 x 24 bits
-\\[ 16\ bits \cdot 44100\ Hz \cdot (3 \cdot 60)s \cdot 2\ kanaler \\] +\\[ 16\ bits \cdot 44100\ Hz \cdot (3 \cdot 60)s \cdot 2\ kanaler \\] Note: @@ -630,8 +775,9 @@ tegn en bølge på tavlen, og vis frekvensen ## Encoding og Komprimering - - "Hvordan tolke dataen" - - Lossless vs lossy + - Encoding: "Hvordan tolke dataen" + - "Codec" + - Lossless & lossy Note: @@ -663,19 +809,48 @@ Note: ikke vanlig for tekst, men akseptabelt for video/lyd/bilde Gjøres ofte på tjenester som messenger. +---- + + + +---- + + + --- + +
+
+ # Algoritmer + + +##### Pseudokode + +```txt +function gcd(a, b) + while a ≠ b + if a > b + a := a − b + else + b := b − a + return a +``` + +
+
+ +
+
+ + Note: Beskriver stegvis og nøyaktig hvordan man løser et problem Uten tolkning Pseudokode ----- - -(Eksempel på pseudokode) - --- ## Kompleksitet @@ -743,13 +918,13 @@ Sorteringsalgortimer: --- -# Nettverk + --- ## Internett -- Hva er det + ---- @@ -772,14 +947,19 @@ Ikke veldig planlagt
- +
-
- - - - - +
+ +##### Pakke + +
+ + + + + +
diff --git a/sources.txt b/sources.txt index a5dd272..097f0ad 100644 --- a/sources.txt +++ b/sources.txt @@ -8,3 +8,5 @@ https://commons.wikimedia.org/wiki/File:Subpixel_rendering_LCD_photo_3e_composit https://commons.wikimedia.org/wiki/File:4-bit-linear-PCM.svg https://www.righto.com/2015/12/ https://www.pngall.com/cpu-png/download/86141 +https://hackaday.com/2019/05/09/cpu-made-from-74hc-chips-is-a-glorious-mess/ +https://en.wikipedia.org/wiki/Algorithm#/media/File:Euclid_flowchart.svg diff --git a/static/graphics/algorithm_definition.png b/static/graphics/algorithm_definition.png new file mode 100644 index 0000000..ebe938e Binary files /dev/null and b/static/graphics/algorithm_definition.png differ diff --git a/static/graphics/ascii.svg b/static/graphics/ascii.svg new file mode 100644 index 0000000..5f63f2a --- /dev/null +++ b/static/graphics/ascii.svg @@ -0,0 +1,170 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/static/graphics/euclid_algorithm.svg b/static/graphics/euclid_algorithm.svg new file mode 100644 index 0000000..61ba302 --- /dev/null +++ b/static/graphics/euclid_algorithm.svg @@ -0,0 +1,557 @@ + + + + + + + ← + + + + + + + + image/svg+xml + + + + + + ENTRY + Euclid's algorithm for thegreatest common divisor (gcd) of two numbers + + INPUT A, B + + + + + + + + + + + + + + B = 0? + A > B? + B B - A + GOTO 2 + A A - B + GOTO 2 + PRINT A + END + + + + + + + + + + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + + + + + + + + + + + + + yes + yes + no + no (< or =) + + + + + + + + diff --git a/static/graphics/messy-breadboard.jpg b/static/graphics/messy-breadboard.jpg new file mode 100644 index 0000000..276c4a8 Binary files /dev/null and b/static/graphics/messy-breadboard.jpg differ diff --git a/static/graphics/network_connect_four.png b/static/graphics/network_connect_four.png new file mode 100644 index 0000000..00492be Binary files /dev/null and b/static/graphics/network_connect_four.png differ diff --git a/static/graphics/sources/ASCII-Table.svg b/static/graphics/sources/ASCII-Table.svg new file mode 100644 index 0000000..a8682bd --- /dev/null +++ b/static/graphics/sources/ASCII-Table.svg @@ -0,0 +1,165 @@ + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/static/graphics/sources/BC548_NPN_Transistor.svg b/static/graphics/sources/BC548_NPN_Transistor.svg new file mode 100644 index 0000000..3301adc --- /dev/null +++ b/static/graphics/sources/BC548_NPN_Transistor.svg @@ -0,0 +1,693 @@ + +image/svg+xmlPackage:TO-92 +Collector +Emitter +Base +VCBO: 30V +Polarity: NPN +VCEO: 30V +VEBO: 5V +IC: 100 mA +PC: 500 mW +hFE: Min. 110 +BC548 +fT: 300 MHz +BC +548 + \ No newline at end of file diff --git a/static/graphics/sources/Euclid_flowchart.svg b/static/graphics/sources/Euclid_flowchart.svg new file mode 100644 index 0000000..21d3b93 --- /dev/null +++ b/static/graphics/sources/Euclid_flowchart.svg @@ -0,0 +1,550 @@ + + + + + + + ← + + + + + + + + image/svg+xml + + + + + + + + ENTRY + Euclid's algorithm for thegreatest common divisor (gcd) of two numbers + + INPUT A, B + + + + + + + + + + + + + + B = 0? + A > B? + B B - A + GOTO 2 + A A - B + GOTO 2 + PRINT A + END + + + + + + + + + + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + + + + + + + + + + + + + yes + yes + no + no (< or =) + + + + + + + + + + + diff --git a/static/graphics/sources/ndiTGW9.jpeg b/static/graphics/sources/ndiTGW9.jpeg new file mode 100644 index 0000000..3bccf1e Binary files /dev/null and b/static/graphics/sources/ndiTGW9.jpeg differ diff --git a/static/graphics/sources/router.svg b/static/graphics/sources/router.svg new file mode 100644 index 0000000..5745514 --- /dev/null +++ b/static/graphics/sources/router.svg @@ -0,0 +1,122 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + diff --git a/static/graphics/sources/router_white.svg b/static/graphics/sources/router_white.svg new file mode 100644 index 0000000..3721ebc --- /dev/null +++ b/static/graphics/sources/router_white.svg @@ -0,0 +1,122 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + diff --git a/static/graphics/sources/router_white2.svg b/static/graphics/sources/router_white2.svg new file mode 100644 index 0000000..89a83f1 --- /dev/null +++ b/static/graphics/sources/router_white2.svg @@ -0,0 +1,129 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + diff --git a/static/graphics/transistor.svg b/static/graphics/transistor.svg new file mode 100644 index 0000000..2e7bd4f --- /dev/null +++ b/static/graphics/transistor.svg @@ -0,0 +1,598 @@ + +image/svg+xml + + + + + + + + + + + + +BC +548 +