https://padlet.com/farahfarhanher/itgss2 Spread some magic. en-us 2017-10-24 01:18:13 UTC 2023-02-13 23:45:30 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Pizza.png farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/221315506 1) Primary key:
-Has to be unique cannot be the same
-Phone? No because numbers are reused
-Name? Some people have similar needs
-Example of good; ID
2) Importance of database
-Governments keep track of citizens
-Police keep track of criminals, crime
-Medical records of patients
-Phone, contact book
3)Web Mining
- Data mining, banks used them to determine whether you will play your loan using a computer
- Crime, determining a location with the highest crime rate for the possibility crime to happen.
: The police has a database of where the crime occur and the offenders.
: The patterns of the crime can be used to predict where the crime can occur by observing human behaviour.
: Aftershocks of crime, the likelihood of crime to occur again somewhere close in space and time.
: Thus with this data, police can monitor on the targeted area to prevent crime to occur.
: The more data collected, the better the prediction can be made.
/Negative impact of this technology/
-They can track you such as application for a university might track you via social media
-Like the movie in minority report, the authority capture the to-be criminals who have not committed any crime before which is considered unjust
-Results of students can be predicted and streamlining of students will occur which may lead to prejudice.


]]> 2018-01-15 00:23:44 UTC https://padlet.com/farahfarhanher/itgss2/wish/221315506 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/223185181 A record is a group of related fields
-A primary key uniquely identifies each record
A data file is a collected of related records
A primary key that belongs from another table is a foreign key.
-Like the CAS ID, the primary key belongs to cas table. While Student ID is the primary key to student table. So both ID are foreign key in the cast student table.

Problems in Database
-by adding another column in a table, this will lead to redundancy (a user appear twice). Thats why multiple tables are made]]> 2018-01-22 02:56:31 UTC https://padlet.com/farahfarhanher/itgss2/wish/223185181 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/225454723 Switch board- a main menu for the database
Maintaining Data
-Adding (new student)
-Deleting (graduate)
-Modifying (change of info, add, no)

Validation
compares data with a set of rules
-Range check
-Consistency check
-Completeness check

File Processing VS Database
File Processing
-Each department has its own set of files
-Used for many years
-Data redundancy (new files)
-Isolate data (diff set of data)

Database approach
-Programs and users share data
-Reduce data redundancy
-Improve data integrity (automatic lock when two person opens the same database, lock and release,
-Share data (So how can modify the data? Rules are implemented; who can access, read, modify)
-Allows easier access (google books vs library)
-Reduces development time
-Can be more vulnerable (disad of sharing)
-Privacy (de-anonymization)
: Freedom from intrusion
: Control of information about onself
: Freedom from surveillance
: Vulnerability of data

Teriminology
1) Invisible info gathering
collection of personal info about someone w/o their knowledge. It helps the other party to make decision but it makes it harder for the person in certain 
2) Secondary use
Use of personal info for a purpose other than the one it was provided for
3) Data mining (prediction)
Searching and analyzing masses of data to find patternns and develop new info or knowledge
4) computer matching
Combining and comparing info from different databases (using social security number for example to match records)
5) Compuer profiling
Analysing data in computer files to determine characteristics of people most likely to engage in certain behaviour.

Principles for Data collection and use
-Informed consent
-Opt-in and opt-out policies
-Fair info principles
-Data retention (how long the data stays)


]]> 2018-01-29 00:15:08 UTC https://padlet.com/farahfarhanher/itgss2/wish/225454723 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/225911951 functionx
w3school

]]> 2018-01-30 01:37:50 UTC https://padlet.com/farahfarhanher/itgss2/wish/225911951 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/227951987 1) Why does some countries does not have identification number?
2) How to enter data aside then typing?
Swipe card, QR code, barcode
3) Why is database convenient?
Systematic, easy to update,  better to search data, forms can be user friendly.
4) Problems not using database
technical skill
-designing require knowledge
location of company
-critical area, often blackout
data redundancy
-multiple copies of the same data can cause data to be inaccurate. It might update at only one copy.
5) Microfilm/ microfische
-more time to find the books rather than database
6) Digital books vs actual book
-anybody who can have access to internet, can access to any books in in the internet
-can search for a particular book by word
7) Why wikipedia is a no no?
-Anyone can edit it
-Yet the qualifications of one to edit the info in wikipedia is unknown
-The credit of the knowledge
8) Captcha in picture
-Robots cannot read the characters ad numbers in the picture 
-Cannot misinterpret it.
9) Where do games are rated?
-Are the users rating verfied (integrity)
10) Autonomous cars
-loss of job
11) Avoid data redundancy in database
-prepare the pull down menu (options) in registering to avoid insignificant data 
12. Why cant we get back our old password?
-Becuz, the password is encrypted. They are unable to decrpt it, ]]> 2018-02-05 03:06:41 UTC https://padlet.com/farahfarhanher/itgss2/wish/227951987 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/228408657 Field Type for field name(name)
-Text, string, VARCHAR, CHAR
SQL is a query language 
-Anonymity vs authentication ]]> 2018-02-06 01:21:27 UTC https://padlet.com/farahfarhanher/itgss2/wish/228408657 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/233094217 This is the Kpop Club. We are handling the members in the tech way. No more papers. Its all in the computer.]]> 2018-02-20 00:53:33 UTC https://padlet.com/farahfarhanher/itgss2/wish/233094217 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/235682016 Article presentation based on criterion]]> 2018-02-27 00:11:53 UTC https://padlet.com/farahfarhanher/itgss2/wish/235682016 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/246326168 1) Accessing a server
- when googling, you use the web server
-when downloading a file, you use a file server
-when emailing, you use an e-mail server 
Have a web server
-open source web server: Apache
2) Index- the first page for any website. rename the file as Index]]> 2018-03-27 01:05:47 UTC https://padlet.com/farahfarhanher/itgss2/wish/246326168 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/247957087 2018-04-03 00:15:50 UTC https://padlet.com/farahfarhanher/itgss2/wish/247957087 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/247957180 2018-04-03 00:16:39 UTC https://padlet.com/farahfarhanher/itgss2/wish/247957180 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/249624347 History of Internet
-Originated as ARPANET in 9/1969
-Initial reason:
a) Allow scientists at different physical locations to share info and work together
b) Function even if part of the network were disabled by a disaster (many routes)

Internet allows us to:
a) Buy things online
b) Send emails
c) e-learning from youtube
d) Call almost free (whatsapp)

w3c made a standard for the usage of internet
-Allowing access from diff devices such as Apple and Android
(1.10 Standards and Protocols)

Storage is in Byte (B) speed of internet is bit (b)
-Fastest fibre optics provided and cheap in Malaysia, TIME
-Fibre optics are faster than satellite internet service. Satellite is inefficient during certain weather; rain

Provided
- Internet Service Provider
Provide internet to a specific geographical area
(TM, TIME.com)
-Online Service Provider
(America online, Jaring Sdn Bhd)
-Wireless Internet Service Provider
Provides wireless internet access to computers and mobile devices
-Require a wireless modem

IP address
-a number that uniquely identifies each computer or device connect to the internet
-type; dynamic or static. Dynamic changes each time
-255.255.255.255 --> max for each column is 255 because each is 8 bits

Domain Name
-the test version of an IP address
-Ex: Google, Yahoo, Youtube etc

DNS Server
-Without this you cannot connect to the internet
-It converts domain name to IP address

INTERNET AND WWW
-Internet is the hardware
-Www is the multimedia part, graphics, video
-Web 2.0 refers to web sites that provide a means for users to interact
- A Web server is a computer that delivers requested Web pages to your computer
- A Web site is a collected of related Web pages and associated items
-Web browser allows user to access web pages and web 2.0 programs
a) Firefox
b) Opera
c) Safari
d) Google chrome

http or https
- http is hypertext transport protocol
- https is hypertext transport protocol secure
-it ensures safety of the website. It is a protocol to access to the web. Often seen in making transactions of important data transfer

Infinite tabs
- They take up space of your memory
- They will slows down the computer processing system

Search tools in WWW
- Search engine
- Subject directory

Top-level Domain
- edu- education
-org- non-profit organization
-gov- government agency


]]> 2018-04-09 02:57:17 UTC https://padlet.com/farahfarhanher/itgss2/wish/249624347 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/250082173 Why do people work for free?
- The experience is important in the career world
-Beta testers were once unpaid as they were given a chance to play the game first.

Why do we need others to test our software?
-To get an unbiased response on the interface of the software
-To find the error as some people use diff system

How technology change the world?
- Something can become obsolete as they are no longer being used:
a) Stamps
b) Greeting cards
c) Newspaper
- It removes old jobs and introduce new occupation
-Knowledge is everywhere
a) Journals
b) Forums
- Communicate]]> 2018-04-10 01:02:34 UTC https://padlet.com/farahfarhanher/itgss2/wish/250082173 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/250082681 1) Grid Leveling]]> 2018-04-10 01:06:24 UTC https://padlet.com/farahfarhanher/itgss2/wish/250082681 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/251814246 2018-04-14 18:08:22 UTC https://padlet.com/farahfarhanher/itgss2/wish/251814246 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/251901065 Initial Consultation]]> 2018-04-15 16:11:38 UTC https://padlet.com/farahfarhanher/itgss2/wish/251901065 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/251901537 Initial Investigation]]> 2018-04-15 16:13:25 UTC https://padlet.com/farahfarhanher/itgss2/wish/251901537 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/252372804 BMP
 - bitmap
- unedited graphics are normally in 
BMP
-relies on the size of the canvas. Altho its empty
GIF
- motion
JPEG
- usually in internet, a lot
PNG
- like an open source allow editing easily
TIFF
- usually from cameras
lossy and lossless compression
-Lossy is used in converting music
-Lossless are like zipped file, if these are lossy they would lose data]]> 2018-04-17 00:08:20 UTC https://padlet.com/farahfarhanher/itgss2/wish/252372804 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/252378423  website-freepik
software- 
Graphics
pencil2D, inkscape, blender
Video editing
camstudio
bibliography- zotero]]> 2018-04-17 00:42:06 UTC https://padlet.com/farahfarhanher/itgss2/wish/252378423 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/254651045 - There are some courses that are suitable for an open uni such as law, architecture
- When using it online, there is no one to observe what you are doing. And if the participant has question, it might take time]]> 2018-04-24 01:18:16 UTC https://padlet.com/farahfarhanher/itgss2/wish/254651045 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/254655531 2018-04-24 01:47:41 UTC https://padlet.com/farahfarhanher/itgss2/wish/254655531 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/256361006 Thumbnails
 - are reduced-size versions of pictures or videos, used to help in recognising and organising them
- serving the same role for images as a normal text index does for words
Why do we need thumbnails
- to reduce bandwidth use
- mouse over - placing the mouse on a thumbnail videos allow it to be seen for a short while

Animation 
-the appearance of motion created by displaying a series of image in sequence

Downloading vs streaming
- streaming is the process of transferring data in a continuous even flow

Plug-in
- program that extends the capability of a web brower

E-commerce
- B2C, business to consumer
Lazada, Bank, Ali Express. Qoo10
- C2C, consumer to consumer
Carousel
- B2B business to business
Ali Baba

Methods e-commerce
- Social networks

E-mail and webmail
- E-mail is the transmission of messages and files via a computer network
- Programs such as outlook allows user to download mail into your computer
- Though it is pretty lousy as you cant read it in other computer
- Webmail requires connection but you can read it anywhere

Mailing list
-group of email names and addresses a single name
- subscribing to a site and they send in notifications

Instant messaging (IM)
- a real time internet communications service
- Yahoo messenger

Chat
- real time typed conversation that take place in a computer
- chat room is a location on the internet sever that permits users to chat with each other]]> 2018-04-30 00:08:14 UTC https://padlet.com/farahfarhanher/itgss2/wish/256361006 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/258751112 VoIP (voice over IP)
- enables users to speak to other users over the internet
- known as internet telephony
- example; whatsapp and skype
Pros
- cheap, travelling to overseas dont have to buy sim card anymore. Online calling via whatsapp
- some are mostly free when connected with a hotspot in public
Cons
- requires good internet connection
- remote  places cannot use this (radio or satellite phone can)

Newsgroup (Forum)
-Online area in which users have written discussions about a particular subject
- typically requires a newsreader

Message board
- Web-based type of discussion group


FTP (file transfer protocol)
- Internet standard that permits file uploading and downloading other computer on the Internet

Torrent (p2p, peer2peer) vs Cyberlocker
-Utorrent is a program. When downloading from the site it is actually dowloading an address. Open the address in the utorrent and the software will connect to several users( server) which are online. This will download the file that we want.
Pros
- multiple server use, to avoid server from crashing
- it relieve the burden of the server
- can get from any server that has the file
Cons
- using Torrent opens a part of your own computer which allows other to go into your computer and hacked it. (IP address is exposed)

Cyberlocker is an online data hosting service such as mediafire, google drive

How to stop Piracy?
- education?
- adds for awareness
- Itunes, netflix
- Dongle( like a USB), to use the software, the USB has to be connected (but there is crack)
- CD has region restricted, meaning if it should be played in DVD player, platted in computer no no. But Johansee created DeCSS which breaks the code causing file sharing in the internet when CD can be played in the computer.
- they tried using fake files (garbage) but hey technology always wins
How this occurs?
- someone steal it from the records and make a digital copy and share it in the network.
- they can also download it and burn them into a CD and watch it on television. ]]> 2018-05-08 01:04:58 UTC https://padlet.com/farahfarhanher/itgss2/wish/258751112 farahfarhanher https://padlet.com/farahfarhanher/itgss2/wish/260688325 Steps in project management
1) Required activities
- Collection of data for example their history (About me) and pictures
2) Time estimates for each activity
- learning new skills like graphic editting
3) cost estimates for each activity
4) order of activities
5) activities that can take place at the same time

Feasibility - measure of how suitable the development of a system will be to the organization
1) Operational feasibility
2) schedule feasibility
- duration of a project
3) technical feasibility
- the ability in building something
4) economic feasibility

Documentation
- collection and summarization of data and information
why this is important
- report that allows others to rebuild it

]]> 2018-05-15 02:02:02 UTC https://padlet.com/farahfarhanher/itgss2/wish/260688325