WebFund 2013F Lecture 1 - Revision history

Soma: /* Modern Web */

2013-11-08T21:38:43Z

Modern Web

← Older revision		Revision as of 21:38, 8 November 2013
Line 28:		Line 28:

	'''bandwidth:''' how much can I get at once?		'''bandwidth:''' how much can I get at once?

	'''latency:''' when I make a request, how long does it take for me to get the first bit		'''latency:''' when I make a request, how long does it take for me to get the first bit

	gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read		gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read
	constantly modelling your behaviour to work well		constantly modelling your behaviour to work well


	==Server-Side Technologies==		==Server-Side Technologies==

Soma at 21:38, 8 November 2013

2013-11-08T21:38:25Z

← Older revision		Revision as of 21:38, 8 November 2013
Line 1:		Line 1:
	Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here].		Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here].

	~~==Notes==~~

	~~September 9~~		==Early Web==
	~~Node~~

	Web		Web
	Browser <-talks to-> Server		Browser <-talks to-> Server

	~~==how?==~~		Multiple protocols:
	* http <-- Stream of text or data byte stream from tcp and puts syntax on it		* http <-- Stream of text or data byte stream from tcp and puts syntax on it
	* tcp <-- turns packets into continuous stream, controls sending, reordering etc		* tcp <-- turns packets into continuous stream, controls sending, reordering etc
Line 15:		Line 13:
	* ethernet/wifi/...		* ethernet/wifi/...

	==~~now:~~ ==		==Modern Web==
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
Line 29:		Line 27:
	* ''you'' are the product		* ''you'' are the product

	[[bandwidth:]] how much can I get at once?		'''bandwidth:''' how much can I get at once?
	[[latency:]] when I make a request, how long does it take for me to get the first bit		'''latency:''' when I make a request, how long does it take for me to get the first bit

	gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read		gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read
Line 36:		Line 34:


	==Server== ~~(not actually going to learn any of these languages)~~		==Server-Side Technologies==
	* PHP		* PHP
	* servlets		* servlets
	* apache		* apache
	* rails		* rails
			Note we aren't covering these in this class except at the end.

			==node.js is JavaScript==
	==node.js is ~~javascript~~==
	* Why? runs pretty fast		* Why? runs pretty fast
	* chromes v8 javascript engine and stuck on the server		* chromes v8 javascript engine and stuck on the server

Sarahmathieson: /* Notes */

2013-11-08T21:09:07Z

Notes

← Older revision		Revision as of 21:09, 8 November 2013
Line 9:		Line 9:
	Browser <-talks to-> Server		Browser <-talks to-> Server

	[[how?]]		==how?==
	http <-- Stream of text or data byte stream from tcp and puts syntax on it		* http <-- Stream of text or data byte stream from tcp and puts syntax on it
	tcp <-- turns packets into continuous stream, controls sending, reordering etc		* tcp <-- turns packets into continuous stream, controls sending, reordering etc
	ip <--packet based		* ip <--packet based
	ethernet/wifi/...		* ethernet/wifi/...

	[[now:]]		==now: ==
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
Line 24:		Line 24:
	most of data on internet is encoded in http or smtp		most of data on internet is encoded in http or smtp
	code that runs inside of browser is known as sandboxed		code that runs inside of browser is known as sandboxed
	everything you care about is in the sandbox		* everything you care about is in the sandbox

	google tracks and monetizes you		google tracks and monetizes you
	''you'' are the product		* ''you'' are the product

	[[bandwidth:]] how much can I get at once?		[[bandwidth:]] how much can I get at once?
Line 36:		Line 36:


	Server (not actually going to learn any of these languages)		==Server== (not actually going to learn any of these languages)
	PHP		* PHP
	servlets		* servlets
	apache		* apache
	rails		* rails


	[[node.js is javascript]]		==node.js is javascript==
	Why? runs pretty fast		* Why? runs pretty fast
	chromes v8 javascript engine and stuck on the server		* chromes v8 javascript engine and stuck on the server
	[[on browser access the DOM]]
	browser manipulates the DOM
	no DOM on server		==on browser access the DOM==
			* browser manipulates the DOM
			* no DOM on server

	learning javascript running on server first THEN on the browser		learning javascript running on server first THEN on the browser
	Server puts together an HTML document that it sends to the browser and then using this they talk to each other		Server puts together an HTML document that it sends to the browser and then using this they talk to each other
	- can't trust the browser.		* can't trust the browser.
	- browser keeps no secrets		* browser keeps no secrets
	- any data sent to server has to be appropriately validated		* any data sent to server has to be appropriately validated

	Database is persistent data structure for servers		Database is persistent data structure for servers
	-relational database		* relational database

	callbacks -> asynchronous I/O		callbacks -> asynchronous I/O
	- here is some code, do this when ...		* here is some code, do this when ...

	processes		processes
	threads :		threads :
	-start new thread		* start new thread
	- heavier weight than you want		* heavier weight than you want
	- not efficient		* not efficient

Sarahmathieson: /* Notes */

2013-11-08T21:03:11Z

Notes

← Older revision		Revision as of 21:03, 8 November 2013
Line 15:		Line 15:
	ethernet/wifi/...		ethernet/wifi/...

	[[now:]]~~<nowiki>Insert non-formatted text here~~		[[now:]]
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
Line 29:		Line 29:
	''you'' are the product		''you'' are the product

	bandwidth: how much can I get at once?		[[bandwidth:]] how much can I get at once?
	latency: when I make a request, how long does it take for me to get the first bit		[[latency:]] when I make a request, how long does it take for me to get the first bit

	gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read		gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read
Line 36:		Line 36:


	Server		Server (not actually going to learn any of these languages)
	PHP		PHP
	servlets ~~<-- not actually going to learn any of these languages~~		servlets
	apache		apache
	rails		rails


	node.js is javascript		[[node.js is javascript]]
	Why? runs pretty fast		Why? runs pretty fast
	chromes v8 javascript engine and stuck on the server		chromes v8 javascript engine and stuck on the server
	on browser access the DOM		[[on browser access the DOM]]
	browser manipulates the DOM		browser manipulates the DOM
	no DOM on server		no DOM on server
Line 52:		Line 52:
	learning javascript running on server first THEN on the browser		learning javascript running on server first THEN on the browser
	Server puts together an HTML document that it sends to the browser and then using this they talk to each other		Server puts together an HTML document that it sends to the browser and then using this they talk to each other
	can't trust the browser.		- can't trust the browser.
	browser keeps no secrets		- browser keeps no secrets
	any data sent to server has to be appropriately validated		- any data sent to server has to be appropriately validated

	Database is persistent data structure for servers		Database is persistent data structure for servers
	relational database		-relational database

	callbacks -> asynchronous I/O		callbacks -> asynchronous I/O
	here is some code, do this when ...		- here is some code, do this when ...

	processes		processes
	threads : start new thread		threads :
	heavier weight than you want		-start new thread
	not efficient		- heavier weight than you want
			- not efficient
	~~</nowiki>~~

Sarahmathieson: /* Notes */

2013-11-08T20:59:48Z

Notes

← Older revision		Revision as of 20:59, 8 November 2013
Line 8:		Line 8:
	Web		Web
	Browser <-talks to-> Server		Browser <-talks to-> Server
	~~http <-- Stream of text or data byte stream from tcp and puts syntax on it~~
	~~tcp <-- turns packets into continuous stream, controls sending, reordering etc~~
	~~ip <--packet based~~
	~~ethernet/wifi/...~~

			[[how?]]
			http <-- Stream of text or data byte stream from tcp and puts syntax on it
			tcp <-- turns packets into continuous stream, controls sending, reordering etc
			ip <--packet based
			ethernet/wifi/...

	now:		[[now:]]<nowiki>Insert non-formatted text here
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
Line 64:		Line 65:
	heavier weight than you want		heavier weight than you want
	not efficient		not efficient

			</nowiki>

Sarahmathieson: /* Notes */

2013-11-08T20:57:06Z

Notes

← Older revision		Revision as of 20:57, 8 November 2013
Line 7:		Line 7:

	Web		Web
	Browser <-talks to-> Server		Browser <-talks to-> Server
	http <-- Stream of text or data byte stream from tcp and puts syntax on it		http <-- Stream of text or data byte stream from tcp and puts syntax on it
	tcp <-- turns packets into continuous stream, controls sending, reordering etc		tcp <-- turns packets into continuous stream, controls sending, reordering etc
	ip <--packet based		ip <--packet based
Line 14:		Line 14:


	now		now:
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
	(embedded in		(embedded in
	html document		html document
Line 26:		Line 26:

	google tracks and monetizes you		google tracks and monetizes you
	you are the product		''you'' are the product

	bandwidth: how much can I get at once		bandwidth: how much can I get at once?
	latency: when I make a request, how long does it take for me to get the first bit		latency: when I make a request, how long does it take for me to get the first bit

Line 37:		Line 37:
	Server		Server
	PHP		PHP
	servlets <-- not actually going to learn any of these		servlets <-- not actually going to learn any of these languages
	apache		apache
	rails		rails


	node.js is a javascript		node.js is javascript
	Why? runs pretty ~~darn~~ fast		Why? runs pretty fast
	chromes v8 javascript engine and stuck on the server		chromes v8 javascript engine and stuck on the server
	on browser access the DOM		on browser access the DOM

Sarahmathieson: /* Notes */

2013-11-08T20:53:26Z

Notes

← Older revision		Revision as of 20:53, 8 November 2013
Line 15:		Line 15:

	now		now
	Browser <-talks to-> Server		Browser <-talks to-> Server
	program talking to program		program talking to program
	(embedded in		(embedded in
	html document		html document
	that was loaded)		that was loaded)

	most of data on internet is encoded in http or smtp		most of data on internet is encoded in http or smtp

Sarahmathieson: /* Notes */

2013-11-08T20:52:20Z

Notes

← Older revision		Revision as of 20:52, 8 November 2013
Line 2:		Line 2:

	==Notes==		==Notes==
	~~put notes~~ here
			September 9
			Node

			Web
			Browser <-talks to-> Server
			http <-- Stream of text or data byte stream from tcp and puts syntax on it
			tcp <-- turns packets into continuous stream, controls sending, reordering etc
			ip <--packet based
			ethernet/wifi/...


			now
			Browser <-talks to-> Server
			program talking to program
			(embedded in
			html document
			that was loaded)

			most of data on internet is encoded in http or smtp
			code that runs inside of browser is known as sandboxed
			everything you care about is in the sandbox

			google tracks and monetizes you
			you are the product

			bandwidth: how much can I get at once
			latency: when I make a request, how long does it take for me to get the first bit

			gmail has all kinds of code built in to predict what you want and predicts which emails you're going to want to read
			constantly modelling your behaviour to work well


			Server
			PHP
			servlets <-- not actually going to learn any of these
			apache
			rails


			node.js is a javascript
			Why? runs pretty darn fast
			chromes v8 javascript engine and stuck on the server
			on browser access the DOM
			browser manipulates the DOM
			no DOM on server

			learning javascript running on server first THEN on the browser
			Server puts together an HTML document that it sends to the browser and then using this they talk to each other
			can't trust the browser.
			browser keeps no secrets
			any data sent to server has to be appropriately validated

			Database is persistent data structure for servers
			relational database

			callbacks -> asynchronous I/O
			here is some code, do this when ...
			processes
			threads : start new thread
			heavier weight than you want
			not efficient

Sarahmathieson at 17:08, 8 November 2013

2013-11-08T17:08:50Z

← Older revision		Revision as of 17:08, 8 November 2013
Line 1:		Line 1:
	Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here].		Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here].

			==Notes==
			put notes here

Soma: Created page with "Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here]."

2013-09-18T17:59:54Z

Created page with "Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here]."

New page

Audio from the lecture given on September 9, 2013 is available [http://homeostasis.scs.carleton.ca/~soma/webfund-2013f/lectures/comp2406-2013f-lec01-09Sep2013.m4a here].