Personal digital devices

Pregunta	Respuesta
Measurment	1 Byte 1 Kilobyte (KB)= 1000 Byte 1 Megabyte (MB)= 1000 Kilobyte 1 Gigabyte (GB)= 1000 Megabyte 1 Terabyte (TB)= 1000 Gigabyte x 1000 to get the next number / 1000 to get the last number
Types of flash memory	Secure Digital (SD) card- stored yp to 4 GB Micro SD cards- for smaller devices SDXC (Extended Capacity)- stores up to 2 TB USB flash drive or memory stick- plugs into the USB port- Stores up to 256 GB SDHC (High Capacity) card- Stores up to 32 GB
Input devices part 1	Mouse- pointing and inputting devices Keyboard- used to enter text Game controller- used for gaming Webcam-used to input visual data-peripheral or inbuilt Touch screen- input device controlled by a finger or stylus.
Input devices part 2	Microphone- used to input audio data-peripheral or inbuilt Joystick- used for gaming- used to control devices, e.e. CCTV cameras, robots. Graphics tablet- used to input drawings.
I	Scanner- digitises printed documents- Optical Character Recognition (OCR) can turn text into an editable format. Touch-sensitive jog dial- used for simple actions like skipping a song.
Output devices- add to the devices Part 1	Speakers- peripheral or inbuilt device allowing you to hear audio output Docking station- amplifies audio output of small devices- charges device Headphones- allow just one person hear audio
Output devices- add to the devices Part 2	Printer- allows you to produce a 'hard copy' Headset- combines microphones and headphones to input and output audio data Screen- inbuilt display screens (e.g. laptop, smartphones) or monitor
Data cable connection	The most common method of data cable connection is a USB cable. Most mobile phones and media players can connect by USB cable to a comuter running the correct software.
Bluetooth	It's a technology allowing devices to communicate with each other wirelessly. They communicate over a short distances, using radio waves. Most mondern devices are Blutooth enabled or a Bluetooth dongle can be attached to a computer as a peripheral. Devices can connect to Bluetooth-enabled peripherals, such as printers or speakers.
WiFi 10	It's another method of wireless communication using radie waves. WiFi enabled devices can communicate over longer distances then Blurtooth can. Most modern devices are WiFi enabled. WiFi allows devices to connect with a computer network and the internet. *WiFi allows devices to connect to WiFi enabled peripherals, such as printers, speakers, scanners and digital projectors.
Synchronising	When two devices, such as a media player and a computer, are connected they can automatically exchange datd. This is know as synchronisation.
Multifunctional mobile phones part 1	Camera/video camera- take still images/ capture video- Make video calls. Internet browsing- stream music and videos. Entertainment- play music and video- play games
Multifunctional mobile phones part 2	GPS receiver- pinpoint position on a map- get local imformation(e.g. weather)- use as a navigational device. Productivity- learning, finacial management, entertainment and travel appsboost productivity and save time.
Multifunctional mobile phones part 3	Data storage- store photos, music and video- removable storage (e.g. micro SD card) allows easy transfer.
Security of phones	Hide the phone- over 50% of thefts occur when phones are left in plain sight in cars. Set a pin, password or biometric lock. Lock the sim card. Record the unique IMEI number- the mobile service provider can block the phone using this number. * Restrict Blurtooth usade- 'Bluejacking' is where people nearby send anonymous message to users who have left Bluetooth switch on.
Computers- health risks	Eye strain Repetitve strain injury (RSI) Neck and back back problems Pain in knees and legs
Media players- key features part 1	Small, light and easy to carry and move around with you. USe solid state memory so that the songs don't 'skip' when moved. Long battery life. Can set playlists.
Media players- key features part 2	Hold a lot of media (songs, podcasts, audiobooks and videos). Can lock to prevent accidental activation. *Simple interfaces, e.g. jog wheel.
Advantages of streaming	Saves time. A user doesn't have to wait to download a file tomplay it. Instead, the mefia is sent in a continuous stream of data and is played as it arrives by the software on the media. Uses less storage space.
Disadvantages of streaming 20	You can not keep a local copy for viewing what ever you want to watch/listen offline. Limited availability for some streamed video (e.g. limtaed time) *Users experience is dependent on connection quality (e.g. qualiy)
Game consoles- health risks	* Overuse injuries (can lead to RSI) Obesity Muscle and joint problems *Eye strain
Digital television part 1	More channels then a normal analogue TV High quality pictures and sound. Digital radio stations accessible on TV. The electronic programme guide (EPG) displays programme information on-screen
Digital television part 2	More accessible: Subtitles, audio and sign lanuage descriptions. Interactive features r.g. extra coverage, voting and shopping capabilities. *Greater control: saveing programmes and pauseing live TV.
Convergence part 1	It's where digital devices take on functions normally found in other devices. GPS and sat nav functions are now offered on a variety of devices: <smartphones and media players now have GPS receivers and free downloadable maps.
Convergence part 2	<Route planning apps are available for smartphones. *Sales of sat navs are falling, so the manufactures are now making apps that have their maps for smartphones
Sat nav	They are now getting made with: * Larger screens * 3D displays * lane assist with images of the actual junctions. Bluetooth links to mobile phones so they can be used for voice calls in the car. Eco-rote planning to save pertrol on journeys.
Online presence part 1	More and more of customers use difital devices, organisation need s storng online presence: Website- to showcase goods and services and sell online. Blog- to tell customers about developments in more personal way.
Online presence part 2	Presence on social networking sites- to monitor comments and engege in discuddions Viral marking- to advertise thier sevices though video uploads. *Profiling- tracking information about customer transactions gathered using cookies.
Technology in education part 1	Internet allows better online research Interactive whiteboards, digital cameras and devices with GPS enhance the learning experience. * Specialist software improves learing in certain subjets, e.g. languages
Technology in education part 2 30	*Online registratio

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	Creado por Natasha Bryant hace más de 8 años