Many aspects of our lives are affected by information technology - home life, leisure, shopping, banking, work.
Home and leisure
A large proportion of the machines we take for granted at home are controlled by microprocessorsmicroprocessor: an integrated circuit that contains all or most of the individual elements of a central processing unit (CPU), including:
- microwave ovens
- washing machine
- dishwashers
- central heating boilers
Entertainment
Activities we do in our leisure time are increasingly dependent on information technology, such as:
- watching digitaldigital: data measured at discrete intervals, eg a digital watch typically moves from displaying one second to the next without displaying the values in-between or satellite TV
- watching videos and DVDsDigital Versatile Disc (DVD): used to store data, eg a movie
- playing computer games
- listening to music on CDCompact Disc (CD): used to store data, eg music CD and MP3 players
- browsing the InternetInternet: a global network connecting millions of computers
Online booking
Online bookings are growing as fast as online shopping. Theatre, cinemas, concerts, air tickets, train tickets, hotels and package holidays are all available on the webweb: includes all of the web pages accessible via the Internet, often at cheaper prices than buying them from high street shops. Bookings can be made across the world by Internet connectionInternet connection: a computer's or another internet-enabled device's connection to the Internet.
Advantages
- instantly find out availability
- book out of office hours
- pay and receive confirmation (via emailemail: electronic mail - a message written or typed on a computer and sent electronically rather than by post) immediately
- lower prices - access to a greater number of retailers increases competition and prices fall
Disadvantages
- risk buying from a websitewebsite: a web page or group of web pages hosted on one web server and viewed in a web browser setup to scam money out of customers, ie the tickets never come
- even when buying from genuine websites, the tickets may not arrive in the post in time (where confirmation email cannot be used).
- websites may not be able to cope with high demand (making them inaccessible)