A1 - Digital devices

Question 1

Multifunctional devices and their uses

Answer 1

Perform more than multiple functions - output and input

Uses:
Touchscreens - Input without using keyboard and outputs on display
Printer - Prints, scans and fax all in one

Question 2

Personal computer and their uses

Answer 2

Small and inexpensive

Desktop and laptops which have own processor, RAM and hard disk

Lightweight and portable

Combines multiple digital functions, as well as being able to store large amounts of data produced in word documents

Uses:

Business - use word processing and spreadsheets

Personal use - browsing, gaming

Question 3

Mobile devices and their uses

Answer 3

They are compact to allow portability

System-on-a-chip which has all core compnents on a single chip including CPU, RAM and GPU

Uses:
Access the internet
Gaming
Organisational functions

Question 4

Servers and their uses

Answer 4

Manages access to servers and can be connected by using Ethernet cable

Large storage capacity, high processing power and large amount of memory

Uses:
Web server - Allows user to access web page
File server - Stores users files
Mail servers - Manages access to files

Question 5

Entertainment systems and their uses

Answer 5

Made to watch tv, films or music

Good hard disk storage and built in connectivity

Uses:
MP3 Player - Listen to 1000’s of music
Digital player - Stream films

Question 6

Digital cameras and their uses

Answer 6

Used to take photos and vidoes

Uses gird photo sensor which converts light into digital pixels

More megapixes = High the quality

Uses:
Sharing with friends and family
Editing using photoshop

Question 7

Data capture and collection systems and their uses

Answer 7

Put data without direct data entry

Reduces human erros

Uses:
Barcode reads thickness f lines to give value
OMR used in shops for lottery tickets
MICR checks cheques are legit. Reads ink

Question 8

Communication devices and their uses

Answer 8

Moves data between two devices

Uses:
NIC moves data on a network using ethernet
Wireless dongles move data to router wirelessly
Router direct data to correct destination

Question 9

Education and training using digital devices

Answer 9

Interactive whiteboards - Supports teaching. Notes can be accessed outside of class

VLE - Upload resources, students can submit work

Online learning - Visual content. Cameras

Question 10

Personal use of digital devices

Answer 10

Entertainment - Gaming, Tv, films

Online shopping and banking - Saves time, accessibility

Home appliance - Ubiquitous is controlling appliances using device, control heating

Question 11

Social use of digital devices

Answer 11

Social networking - Facebook

Instant messaging - Real time convos, WhatsApp

VoIP - Real time video and voice and conversations. Skype

Question 12

Retail use of digital devices

Answer 12

Epos - Computerised till, More efficient, saves time and money

Stock management - PC and servers used, check stocks, connect via internet to see warehouse

Retail website - Need server to run

Question 13

Organisational use of digital devices

Answer 13

Admin - PC used to manage finance and share info

Video conference - Save times, supports employees

Question 14

Creative tasks done using digital devices

Answer 14

3D grahpics - Add realism in games, uses PC, filsm use PC

Editing - PC used to edit and camera used to take pic

Graphic design - PC used to create logos