5336841
Description
Flashcards by Natasha Bryant, updated more than 1 year ago
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Created by Natasha Bryant
over 8 years ago
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| Question | Answer |
| 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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