Please enable JavaScript.
Coggle requires JavaScript to display documents.
A1 Digital Devices - Coggle Diagram
A1 Digital Devices
-
mobile devices
- any digital device which can be carried around easily. teh size and weight allows them to be carried in one hand and manipulated with the other.
- smartphones are basically a PC with the same internal components.
system on chip: a micro chip with all the neccesary electronic circuits and parts for a given system such as mobile device, on a single integrated circuit.
multi functional devices
- perform several different purposes
- they are also known as all in one devices
- Examples: printer/ scanner
:check: take up less space than multiple devices, more storage space
:red_cross: if one device fails all the other features could also fail since they are dependant on each other.
personal devices (PCs)
multi-purpose microcomputer whose size, capabilities and price make it feasible for individual use.
- PCs include desktops and laptops
- Components of a computer: motherboard, CPUs, RAM, Hard disk drives, solid state drives, power supply units
- used in workplaces for tasks like word processing, desktop publishing etc.
Processing speed:
-
-
- clock speed is mneasured in GHz.
- CPU repeatedly reads or fetches instructions from memory and executes them
-
storage capacity
- refers to how much disk space one or more storage devices provided
- measures how much data a computer system may contain
entertainment systems
- computing devices taht are designed to enertain such as watching tv, listening to music, playing video games etc
- have good hard disk storage for storing files, music, games etc.
- have commonly in-built internet connectivity capabilities
- digital media allows poepel to stream digital media such as films from over a network
navigation systems
- GPS used to provide a real time map of our current location including route planing tool to give directions for chosen destination.
- include features such as identifying traffic, roadworks and accidents that may delay journey
- can provide accurate destination time
- cart satnavs are often a standalone device eg TomTom but these have now been replaced with smartphones since people can access them on their phones.
servers
- manages access to different resources and services over a network
- other devices like PCs connect to server through ethernet cables or wifi.
- commonly have a large storage capacity, high processing power and large amounts of memory
- examples include web servers, mail servers, file server and print servers,
digital cameras
- takes photos and videos and recording it as digital data.
- does this by using a grid of photo sensors that convert light into digital pixels that computer can store usually on memory card. Megapixels (million pixels) refers to the number of individual pixels of colour that are used to record images.
- the more the megapixels the better the quality. 20 megapixels is common in digital cameras
- most digital cameras contain in built memory card slots to store digital pictures directly on device.
- memory card removable allowing you to transfer pics and images onto another device such as laptop, enables to send pics through emails, access them on other devices and use programs to edit them.
-
communication devices
- devices used to move data between two devices. This can be done through wired connections or wireless
- examples of this include network interface cards: allows data to be transferred to and from a networked computer by connecting to an ethernet cable. Commonly used with desktop personal computers.