CSC413 – EXERCISE 9
Farah Najwa binti Adenan (2020461542)
AS253_2B1
19th January 2021
Questions
1. Explain two types of connections.
Answer :
There are multiple types of connection for mobile phones. Two radio systems
are available to connect a smartphone or mobile phone to a cell tower and then onward
either to the Internet or to the public switched telephone network (PSTN) using copper
wire, optical fiber, satellites and microwave links.
Wi-Fi is a type of connection that is widely used nowadays. Connecting a
mobile device to the Internet using Wi-Fi 802.11 a/b/g/n technology can provide a faster
connection than 4G for less cost, if not for free. But the Wi-Fi’s range is only about 30
meters indoors and 100 meters outdoors (line of sight). Many homes, offices, and public
places have installed wireless access points (WAPs) to which electronic devices
connect using radio operating in the unlicensed, public 2.4 GHz spectrum. These WAPs
are often combined with digital subscriber line (DSL) or cable modems and network
routers to provide hotspots for connecting to the Internet.
Another type of connection involves with respect of mobile devices is the
Bluetooth. Sharing the 2.4-GHz with Wi-Fi, Bluetooth is a very short-range, low-power
radio technology to interconnect up to seven devices by radio. Typically, Bluetooth is
used to connect a mobile phone to a hands-free headset or to an automobile audio
system. An innovative use of Bluetooth is Tile which uses Bluetooth to find your stuff
by remembering the last place the tile was ‘seen’ and sounding an alert when triggered.
2. State the difference between iOS and Android.
Answer :
iOS
Android
It is a proprietary, closed source It is an open-source operating system for
operating system that was developed and mobile devices based upon the Linux
is owned by Apple.
kernel and maintained by Google.
Began in 2007 and the operating system Android was developed
by Android,
for the new iPhone, using multi-touch Inc., a 22-month-old startup purchased
gestures.
by Google in 2005.
iOS is never licensed for installation on Became the core of Google’s foray into
any
hardware
except
hardware mobile hardware and software.
manufactured by Apple.
The mobile application in iOS uses The mobile application in Android uses
Objective C.
Java.
Approximately 53% of users access the Approximately 36% of users access the
Internet through mobile devices by using Internet through mobile devices by using
iOS in 2014.
Android in 2014.
Messaging is done by using iMessage.
Messaging is done by using Google
Hangouts.
The platform for Internet browsing is the The platform for Internet browsing is
Mobile Safari.
Google Chrome.
3. There are many types of ways to design a web. Explain four types of pattern in
responsive web design.
Answer :
Responsive web design is a developing methods used to deal with the difficulty
of programming for the many screen sizes in the mobile and desktop worlds. Four types
of responsive web design are mostly fluid, column drop, layout shifter and tiny tweak.
Mostly Fluid is the most popular pattern. It is surprisingly simple : a multicolumn layout that introduces larger margins on big screens, relies on fluid grids and
images to scale from large screens down to small screen sizes, and stacks columns
vertically in its narrowest incarnations.
Column Drop is another popular pattern that starts with a multi-column layout
and ends up with a single column layout, dropping columns along the way as the screen
sizes get narrower. Unlike the Mostly Fluid pattern, the overall size of elements in this
layout tend to stay consistent. Adapting to various screen sizes instead relies on stacking
columns.
Layout Shifter is the pattern that does the most to adapt across different screen
sizes. That is, different layouts are used in large, medium and small screens. Because
this inherently requires more work, it seems to be less popular than the previous two
patterns which are Mostly Fluid and Column Drop.
Lastly, Tiny Tweaks is another type of pattern used in responsive web design.
While the simplest form of adaptation, this pattern was also the least popular. Most
likely is it because of few companies have the luxury of brutally simple Web pages
consisting of very few elements withing a single column layout. For those blessed with
such simplicity, multi-device adaptation can just be a few tiny tweaks to font sizes and
image layout.