3 things that ICT allows us to do
- Work whenever we have access to a computer + internet
- Communicate more effectively and accurately with employees and customers
- Store vast quantities of data
Negatives of ICT
- needs constant upgrading of soft/hardware + skills
- small pools of ICT workers replacing staff
- ICT employees working long hours to meet demands
Information Processing Cycle
Input → Process → Storage/Output
What makes a computer more ‘powerful’
- CPU speed
- Storage
- Memory (more tasks to be run at a time)
- Graphics card
How do we promote green computing when using laptops?
Conserve and control power usage:
- Sleep mode
- Adust brightness
- Adjust power consumption/preformance balance
Advantages and disadvantages of hybrid laptops
Advantages:
- More powerful than tablets; run on OS
Disadvantages:
- Weigh more
- Shorter battery life
- No built-in cellular communication
Characteristics of a smartphone
- OS
- Colour screens
- Built-in data modem (3G, 4GLTE)
- GPS
- Camera
- WiFi
- Speaker and mic
The difference between
general-purpose computers and dedicated devices?
The presence of a processor
Increasing order of device power
Servers
↑
Desktops
↑
Laptops/Notebooks
↑
Tablets
↑
Smartphones
How to protect your information (software theft)
- Backup info
- Password protect / encrypt data
- Cloud computing instead of storage drives
Preventing hardware theft
- cable locks
- loackable cabinets w/ ventilation
- motion sensors + alarm
Power outages
UPS - uninterruptible power supply that protects electronic equipment
Connected to the mains
Server vs Clients
Server
- powerful computer that provides services resources to clients
Client
- Revieves and uses resources from server
- Not as powerful
