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IT > LO1 > Flashcards

LO1 Flashcards

1
Q

What are ‘Public Organisations’?

A

Organisations that are funded by taxes and run by the government, these include: the police, the council, the NHS and schools.

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2
Q

What is meant by an urban location?

A

An urban location is city or other built up areas.

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3
Q

What is meant by a rural location?

A

Rural locations are in the countryside.

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4
Q

Why do telephone and internet services focus on building networks in urban areas?

A
  • The equipment is expensive
  • More people are likely to use services in urban areas
  • The company will make profits quicker
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5
Q

What are the implications of living in a rural area broadband-wise?

A

Parts of the country don’t have decent broadband service of 4G signals, which makes access to information on the internet slower and reduces productivity.

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6
Q

What are developing countries? And why do they have less access to the internet?

A

Developing countries tend to have less developed infrastructure compared to developed countries - due to them being poorer, and having to focus resources on more important priorities within their countries. As a result there is less access to computers and the internet meaning information is harder to send and receive.

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7
Q

What is GDP?

A

Gross Domestic Product - a monetary measure of the market value of all final goods and services produced in a specific time period by a country or countries.

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8
Q

What is the trend with GDP and broadband access?

A

The higher the GDP, the more people are able to access broadband.

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8
Q

Name 3 types of storage media

A
  • Paper
  • Optical Media
  • Magnetic Media
  • Solid State Media
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9
Q

What is magnetic media?

A

Magnetic media uses magnetic patterns to store data - the most common example is magnetic hard drives inside most desktop computers - data can be stored on tapes, and this media is usually used for backup and archiving.

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10
Q

What is solid state media?

A

Stores data and information in circuits - USB drives and SSD cards. SSD cards are ideal for mobile devices.

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11
Q

How is information stored on paper?

A

Paper is a traditional form of storage which includes handwritten notes. For example, a map, a telephone directory or a form

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12
Q

What is optical media?

A

Optical discs use lasers to read and write data - these devices have been phased out over the past decade but were commonly used to store music and videos on CD’s and DVD’s.

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13
Q

Advantages of magnetic media?

A
  • Store large amounts of data at a relatively low cost
  • Fast Access and retrieval times compared to other storage devices
  • Can easily be transported for backup and archival purposes
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14
Q

Disadvantages of magnetic media?

A
  • Can easily be damaged by physical shocks, dust, heat or magnetic fields
  • Limited lifespan and will eventually degrade over time causing data loss or corruption
  • High power consumption
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15
Q

Advantages of solid state media?

A
  • Fast access and transfer speeds
  • Consumes less power than other storage devices
  • Durable and reliable, it has no moving parts and it’s less prone to data loss.
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16
Q

Disadvantages of solid state media?

A
  • Expensive
  • Smaller storage capacity than other storage devices
  • Shorter lifespan that other storage devices
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17
Q

Advantages of using paper as storage for information?

A
  • It doesn’t need an internet connection
  • It can easily be manipulated (changed)
  • It’s light enough to carry around
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18
Q

Disadvantages of using paper as storage for information?

A
  • Can be easily damaged
  • Can be difficult to transport large amounts
  • Can be hard to keep secure
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19
Q

Advantages of optical media?

A
  • Mass storage capacity
  • Low cost
  • Long lifespan
  • High data stability
  • Portable (small and light)
  • Data is stored in read only, it cant be accidentally deleted.
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20
Q

Disadvantages of optical media?

A
  • Not as easy or as fast to copy an optical disk as it is for software and hardware
  • Needs careful handling - can get damaged easily
  • Holds less data than hard drives or memory sticks.
21
Q

What are handheld devices? Name some examples.

A

Handheld devices are small and portable and can either be held in the hand easily or worn. These include:
- Smartphone
- MP3 players
- Smartwatch
- Fitness tracker

22
Q

What are portable devices? Name some examples.

A

These devices are larger than handheld devices but are still used widely and are easy to transport. They include:
- Tablets
- Laptops

23
Q

What are fixed devices? Name some examples.

A

Fixed devices are not designed to be portable, they usually have to be plugged in. These include:
- PC
- Smart TV
- Washing machines
- Smart fridges

24
Q

What are shared devices? Name an example.

A

Shared devices can be accessed by more than one user at a time, these tend to be devices that are network or internet based.
For example, a console.

25
Q

What was the first message to be sent over ARPANET?

A

‘LOGIN’ - the application crashed after sending the letters ‘LO’

26
Q

When was the first email used?

A

1971

27
Q

Who invented the World Wide Web (WWW)?

A

Tim Berners-Lee, he created info.cern.ch.

28
Q

Which organisation used the first webcam?

A

Cambridge University Computer Science Department - in 1991, a webcam was pointed at the Trojan room coffee pot, to see if the coffee pot was filled or not without having to go check. If the coffee pot was empty, they’d wait for someone to fill it.

29
Q

What year was Google launched?

A

1998

30
Q

What was the dot com bubble and when did it occur?

A

It was a stock market bubble from, 1995-2000

31
Q

State some ways to connect to the internet.

A
  • Dial - Up
  • Broadband
  • Wireless (WiFi)
  • Satellite
  • WiFi Hotspots
  • 4G/5G
32
Q

What is Dial up?

A

This is a connection type that operates through a standard telephone line by running the telephone line to a modem device in the computer and configuring it to dial a specific phone number, the computer can connect to the Internet.

33
Q

What is broadband?

A

Unlike Dial-up, broadband internet access his high-speed and is always on. Broadband includes several high-speed transmission technologies.
There is both copper cable broadband and fibre optic broadband. Copper networks are created with bulky copper wires that use electrons for data transmission.
Fibre optic is newer than copper cables

34
Q

What is wireless (WiFi) connection?

A

Wi-Fi provides high internet speeds by using radio waves - it is a wireless networking technology. These radio waves transmit data from a wireless router to our devices.

35
Q

What is satellite connection?

A

This is a type of internet connection that uses a satellite to get an internet signal from your service provider. This is different from standard broadband as that uses wires and cables.

36
Q

What is WiFi Hotspot?

A

This is normally a location where you can go to get an internet connection, usually for free. These include places like libraries, cafés, or shopping centres.

37
Q

What is 4G/5G?

A

These are 2 types of mobile broadband technologies that allow you to access the internet on your smartphone, laptop, tablet, or other devices.

38
Q

What is the internet?

A

The internet is a global computer network of interconnected networks that is public and open access - it links computers all over the world. An example is social media apps.

39
Q

What is the Intranet?

A

The Intranet is a private version of the internet, using http/https. It is a local network contained within an organisation with webpages. It is private and closed access, an example is Airhead.

40
Q

What is the Extranet?

A

It connects to the intranet from outside to organisation, maybe via a login on the internet.

41
Q

What is an URL?

A

A URL is the mechanism used by browsers to retrieve any published resource on the web. URL stands for Uniform resource locator, a URL is nothing more than the address of a given unique resource on the web and is a unique identifier used to locate a resource on the internet.

42
Q

What is a static webpage?

A

These types of webpages stay the same for everyone who views them, unless they are specifically edited by the author. For example BBC Bitesize.

43
Q

What is a DNS resolution?

A

The process of translation and lookup of an URL.

44
Q

What is a DNS server?

A

DNS - Domain Name System
A DNS acts like a phonebook for the internet. whenever people type a domain name like Yahoo.com into the address bar of web browsers, the DNS finds the right IP address that computers can understand and use.

45
Q

What is a dynamic webpage?

A

These types of webpages can change depending on who0 views the website, e.g. people from different countries may view the page in different languages or based on different preferences, such as Netflix.

46
Q

What is a blog and what can it be used for?

A
  • Its a personal webpage where the owner can share their opinions.
  • They can be about any topic.
47
Q

Advantages of Social Media Channels?

A
  • You can connect with people through social media awareness
  • Its a good source of up-to-date information
  • You can keep in touch with someone abroad
  • Its easy to use
  • It can be beneficial to education
  • You can build your brand and promote businesses and products.
48
Q

Disadvantages of Social Media Channels?

A
  • There can be fake news
  • People can find out information about you that they can use against you.
  • There’s a risk of getting hacked
  • Social media can be addicting
  • There’s a risk of cyberbullying
  • It can be harmful to health
  • It causes sleep issues
  • Reduces face to face communication
  • Your data is sold
49
Q

Advantages of Cloud Storage?

A
  • Access data from anywhere if you have an internet connection
  • Secure, you need to log in to access documents
  • If you run out of storage, you can purchase more
  • Low cost
  • Provides backups and the company deals with backup and recovery.
50
Q

Disadvantages of Cloud Storage?

A
  • You need an internet connection
  • Cost, you have to may most times

IT (4 decks)

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