ICT REVISION NOTES

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Youngui Kemoko ICT HOMEWORK

One benefit

of using wireless connection in the home is that you can share the internet

connection and it can also back up files as well as sharing files. In order to

share the connection over wireless network the modem has to be connected

through the router.

When using

a wireless network it is very important to secure it because if you don’t then

other people are able to access the connection without having to pay for it.

Bandwidth is

the number of bits that can go through the network connection in just one

second. They are measured in bits per second (bps).

The benefits

of using Wi-Fi connection over a 3G dongle is that there is a good range of

Wi-Fi which works up to 60 metres from the hotspot. In addition Wi-Fi is quite

widely available even when you are abroad. Therefore you don’t have to pay for

it. Whereas, with a 3G dongle, you would have to pay if you would like to roam

internet abroad.

Wi-Fi directs

could become better than Bluetooth because there is a much larger range than Bluetooth.

This means that it can be accessible from further away. In addition, Wi-Fi directs

has a larger bandwidth. Therefore data transfer is much faster.

Post office

protocol, also known as POP, in order for the person to read the email, the

email has to be downloaded from the mail server to the computer. The email then

gets deleted. Whereas with internet

access message protocol (which is also known as IAMP), the message gets read by

the mail server. However, unlike POP the message does not get deleted at this

stage. This means that the email can be viewed online without internet

connection.

HTTP is the

protocol used to upload a podcast on a blog.

A firewall

is software that blocks connections from your computer under the rules you

prefer there to be. Therefore, this is used by people while accessing the

internet so that the hackers can’t intercept personal data from the users.

Encryption helps

keep data secure by it turning on data into a secret code with the key. Therefor

only someone who has the key can read the data.

In your

windows, there is a lock icon where you can press it which now needs to enter

your password in order for you to proceed using the computer. This is one

physical control that can be used to keep your computer secure. Another physical

control method is by locking your keyboards to the desk as well as the

computer. Therefore, it can’t be stolen because it is locked to the desk.

Fingerprinting

is one biometric used because a biometric finger scanner identifies the person by their

finger print. These can be a secure method of identifying a person.

When selecting an ISP, you need to consider the costs. This

is because ISP’s have a monthly fee. In addition, you also need to consider the

download limits you will have which is due to the fact that some internet

service providers put a limit on what you can download in one month. This means

that if you go over your limit, they charge you for it.

One advantage of using social networking technology

rather than SMS is that with social networking, the messages that you are

sending is free. This means that if you were connected to a Wi-Fi hotspot, you

are not wasting your data roaming to send free messages. Another advantage of

using social networking technology is that if you are in a place where there is

no service but there is internet connection, you can send messages through

internet on social networks.

The widespread of internet use has had an impact on how

people communicate with each other because instead of going out to see people,

there is now skype which is used to help people communicate via video chatting

and it’s all for free. It also has an impact on the number of people who work

from home because websites such as YouTube allows you to make videos for

people. This means that you if you become successful doing this, you get paid. This

is good because you don’t have to go for an interview; you can start right from

home.

Security questions can be used for authentication when

users are logging into an online account so that your account can be private. In

addition, if someone else was trying to get into your account and failed at

getting in your password, or even you yourself was trying to get on your

account but forgot your password, a security question is there for you who would

like to personally get into your account as help.

A captcha test is where you have to enter numbers and

letters shown. Captcha’s are used so that it can check the form of software

program which would be known as a ‘bot’. Therefore, it protects systems that

could be vulnerable to email spam.

The customer has the right to check any personal data an organization

holds about the customer can also demand that the data is not used in any way

that could harm or distress them because they shouldn’t be allowed to use the

customer’s data for any other purpose without their consent.

You can get prosecuted if you use illegal copying and

sharing of files. Another effect to the music industry of illegal copying and

sharing of files could lead you to being put in prison is found guilty.

If someone asks you to copy a game you should not do it because

that is called copyright infringement and you could get taken to court for that

as it is like a crime.

Two features of an online shop that would be useful to

people wanting to buy books are that they can provide a delivery service as

well as being available 24/7.

A disadvantage of shopping online rather than going to

shops is that, you won’t be able to pay with cash and you could be at risk of

not receiving the goods. This means that it could’ve been stolen making it a

fraudulent website.

Two benefits to the seller who is selling on an online auction

website is that they have the ability to search easily for goods that they want

and the community of users which builds trust by rating both buyers and

sellers.

Two advantages of an online account over telephone

banking are that you are able to view the transactions as well as viewing up to

date bank account details.

The benefits of creating an online account for gaming

online is that you get to interact with others as well as a computer component.

The actions of a character in an online gaming system gets communicated with

other players by a central server which runs the game software and then it

streams each player’s position and actions to all the players over the

internet.

You would experience ‘lagging’ in your game if you do not

have a high bandwidth low latency internet connection.

One advantage of operation online as well as on the high

street is that you don’t have to distribute your goods in shops. Another advantage

of operating online as well as on the high street is that the organization can

be located wherever it would like to be located.

One way companies

use transactional data is to create personalized marketing such as coupons. Another

way in which companies use transactional data is to understand customers’

buying habits and to see the trends in sales.

Companies advertise on the internet because they can

target particular customers. In addition, it is much cheaper than advertising

on television. However, with online advertising, there could be drawbacks such

as people ignoring the advert. Another drawback of advertising online is that

it can be available all around the world for anyone to copy such as the logo

and trademarks.

One way you could obtain personal data from potential

buyers is by collecting data from the transactional data as well as looking through

social networking sites. One benefit of creating a viral advertisement is that

it gets passed on and shared from one person to another. This means that the

company does not have to pay for advertisement. However, there could be a

negative side to viral advertisement because there could be a negative buzz

effect to the viral advertisement. This means that if one person does not like

the advert and they post negative comments about it, people are not going to do

extra research to see whether the information is legit or not. Therefore, the

people will take that person’s comment as the truth which as a result makes the

business suffer.

One way in which a company could use personalization

techniques to persuade people to buy their products is by adding related items

to what the customer has viewed. In addition, the items that the customer might

want to consider viewing.

You can pay for clothes online by either using a credit

or debit card. However you need to make sure that the website you’re buying

clothes from is legit. Therefore, in order to make sure that it is legit, these

are what you need to look out for:

The URL changing from HTTP to HTTPS.

‘Norton Secured’ which adds a further layer of

authentication.

You can use the eVoucher by creating an online account

and then you enter the unique reference number given on the eVoucher.

If you bought a dress in a shop which is distributed in

the UK, if it is faulty and it does not suite your satisfactory needs then you

can return it because it is the law in the UK for consumer’s rights. This means

that you can either get a refund, it can become repaired or it can be replaced.

The difference between locally installed software and

hosted software is that in locally installed software the user can obtain

software on DVD or downloads from the internet, whereas, with the hosted

software the user has to log in through the internet to use the software

needed.

Commercial software producers can respond to free

software as a service by making their products more appealing and of better

quality.

Using online storage instead of local storage could back

up your data and some online data storage services are free.

Users can refine web searches to improve the validity of

results by adding more key words to narrow down the search.

Two types of online networking are social networking and

blogs. One reason of having an online account with an online community is that

it allows you to create a social presence which is your profile.

The function of an online workspace allows you to email

and chat collaboratively online. Also, the colleagues can all work on the same

document because there are shared folder and files. The online workspace has an

advantage because it allows you to have a meeting using online conferencing and

VolP instead of emailing.

One feature of social networking is that it is easy for

everyone to create a personal page and it is also an easy way to keep in

contact with people. Different social networks have different features because they

all have different target audiences.

Three features of a user-generated reference site are:

The charges made can be tracked to see who contributed.

There are hyperlinked pages and images.

Users can add and edit the content.

One function of a social bookmarking site is that it

allows users to add bookmarks also known as web links and can therefore share

these bookmarks with others.

One way in which ICT is changing the way knowledge is created

is spreadsheets- they are used to create ideas and solve problems. Another way

in which ICT is changing the way knowledge is created is that information is

constantly updated and is open for improvement, for example, Wikipedia.

The internet helps people to work collaboratively because

those who are working in a group make the work get done quicker. In addition,

users can help each other solve problems when working collaboratively on the

internet.

One way in which the internet is used for socializing is

social networking and it also allows you to get in touch with old friends on

websites. If someone threatens you online you could report it to the organization.

You can collaborate globally through social networking

and also through video chatting. Another type of wireless connectivity to

access online workspace is wireless LAN.