Digital Devices

- multifunctional devices

- AIOs (all in one)

- can carry out a number of functions

e.g a printer that can scan and photocopy as well as print

- personal computers

- first PCs came onto the market in the 1970s

- before, computers would take up rooms and need a lot of equipment

- number of transistors available on the surface of a CPU doubles roughly every 2 years

- devices have become smaller and smaller and therefore are more accessible to a wide range of users

- modern devices have a range of integrated devices

e.g microphones, webcams, hardware for storing data + accessing the internet

- devices that handle large quantities of data that a powerful standalone computer would struggle with

- used by large organisations such as Amazon to process data from millions of customers

- not the same as a server, a server is a computer that manages network services whereas mainframe computers manage data

- term given to any portable digital device

- technology has become smaller and more powerful

- many devices can now be replaced with one single smartphone device

e.g tablets, mobile phones, cameras

- provide services for computers on a network

- number of PCs connected via cables and switches

- provides specific services, such as shared file storage, management of print jobs or managing websites

- cloud systems use servers that are geographically separate from the user to store files and folders

- MFDs that can manage music and video files

- many are standalone, but due to increased affordability server based home systems are becoming more popular

- many devices can connect to the internet and provide a range of services to the user

e.g MP3 players, Apple TV,  Amazon Echo

- used to store still or video images

- encoded by breaking the picture into pixels

- resolution of the image is the number of pixels used to create it

- higher the resolution, the better quality the image - but leads to larger file size

- use GPS

- newer versions can reroute to avoid congestion and can provide information about things like roadworks

- devices can be standalone or integrted into the vehicle

- mobile phones also offer this with the use of map apps

- collect a range of data

e.g credit/debit card readers, iris and fingerprint recognition, MRI scanners

- allow devices to communicate with eachother internationally or locally

- satellites: allow 2 way communication between devices

- WiFi: allows connection of devices with radio waves

- Bluetooth