Topic 2 - Digital Devices 2 Flashcards

1
Q

Why are digital devices often developed?

A

Digital devices are often developed to make everyday tasks easier, quicker or more cost-effective and to provide efficient, improved access data.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are Digital cameras?

A

Digital cameras capture images and video digitally using an image sector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do digital cameras store image and videos digitally?

A

Digital devices store data as digital data on media such as a memory card or hard drive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give an example of Digital cameras

A

Examples
Still and video cameras

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do Navigation Systems use and do?

A

These devices use GPS
(Global Positioning satellite)

A receiver is used to locate the user’s position on a digital map and provide directions to a given destination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Give an example of GPS and How it is used in the example?

A

Example
an in - car sat-nave

Which uses GPS location data with a software to provide directions to a given destination when driving

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What can communication devices and systems do?

A

These devices can send and receive analogue or digital data to and from another device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Examples of tradition analogue and a modern digital

A

Traditional analogue
Examples include phones and faxes

A modern digital
Example is a reader which directs data across a network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are WiFi dongles and what does it allow?

A

WiFi dongles are communication devices that allow your PC to communicate with a router wirelessly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What do Data capture and collection system do?

A

These devices collect and input data through automated systems rather than direct data entry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Examples of Data capture and collection systems

A

Example
A Bar code Scanner

Which inputs (or reads) a bar code and converts the information into data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Another examples of Data capture and collection systems

A

Example
An optical mark reader

Which reads pencil or pen marks on specially design printed forms

such as lottery tickets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Examples of Data capture and collection systems and what it does

A

Example
An EPOS
(electronic point of sale) system

Which records sales and updates stock level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does RFID reader do?

A

An RFID reader reads data stored on a smart card by being in close proximity to the card

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are RFID reader often used by?

A

These are often used by payment cards or for stock control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly