GoConqr has a new look! Let us know what you think.

Sign up free

Flashcards

ICT unit 2

hanna akhrass ICT AS - Level English 41 cards

Cards in this deck (41)

  1. 1What data does a keyboard produce, how is it connected and what are the uses?-Text and number data
    -qwerty(de facto standard)
    -custom keyboards(grail)
    -ergonomically designed
    -wired/cable
    -holographic
    -touchscreen
    -mobile keyboard.
  2. 2What data does a mouse produce and what are the uses?-GUI
    -can control cursor using hand or foot
    -senses movement(ball-needs mat, optical, laser-more precise)
    -easy
    -cheap
    -moves cursor faster than arrow on keyboard
    -cannot enter text data.
  3. 3What is a joystick and what's it's uses?-A pointing deice which moves cursor position on a monitor screen.
    -mainly used in computer aided designing and computer games.
  4. 4Uses of a touch screen?-Simple but easy
    -input handwriting.
  5. 5Scanner and its uses?-Used when some info is available on paper and needs to be transferred to hard disc of computer for further manipulation
    -captures images from source and
    -converts into digital form that can be stored on disc
    -edit images before printing.
  6. 6Digitalizer and its uses?-Converts analogue info into digital
    -converts signal from television/camera into series of numbers that can be stored in a computer
    -used by a computer to create pictures
    -used for doing fine works of drawing/image manipulation.
  7. 7Microphone uses?-Input sound that is stored in digital form
    -add sound to a multimedia presentation
    -mixing music, communication, speech recognition.
  8. 8Magnetic ink card reader uses?-Used in banks to process cheques
    -banks code number an cheque number are printed on cheque with special ink which contains magnetic material(machine readable)
    -reading process= magnetic ink character recognition
    -fast
    -less error prone.
  9. 9Optical card reader uses?-Used to read printed text
    -scans text optically, character by character(converts into machine readable code + stores text on system memory)
    -application forms
    -quick to use.
  10. 10Bar code reader uses?-Reads bar code data (data in form of light/dark lines)
    -used in labelling goods
    -numbering books
    -hand held/embedded/stationary scanner
    -scans bar code image, converts into alphanumeric values, then feeds too a computer which the bar code reader is connected to.
  11. 11Optical mark reader/recognition (OMR) uses?-Type of optical scanner used to recognise type of mark made by pen/pencil
    -used for checking answer sheets of exams (multiple choice answers)
    -special paper has to be used
    -exam marking, lottery tickets
    -expensive
    -not flexible
    -fast
    -efficient.
  12. 12Biometrics uses?-Identifies individuals by measuring biological features
    -face scanner (very secure)
    -hand scanner
    -retina/iris scanner (more secure as retina/iris cannot be duplicated)
    -voice scanners (secure but less sophisticated scanners can be passed by tape recording).
  13. 13Radio frequency chips uses?-Passports
    -contactless payments
    -trackers
    -transmit GPS coordinate.
  14. 14How to chose input?-Depends on data you're inputting
    -how much data to input
    -automatic/manual
    -user preferences/needs
    -cost
    -location.
  15. 15What is a CRT monitor (VDU [visual display unit])?-Based on cathode ray tubes that fire electrons at screen to make each pixel glow a different colour
    -take up lots of room
    -most systems now sod with TFT monitors
    -high power consumption
    -give clear, sharp displays
    -low cost
  16. 16What is TFT monitor (this film transistor)?-flatter, takes up less space
    -use liquid crystals to form image
    -small
  17. 17Large displays examples?-Digital projectors
    -interactive whiteboards
    -plasma screens
  18. 18Small displays examples?-Mobile phone screens
    -PDAs
  19. 19What is a laser printer?-Formed on the page using a laser beam on a light sensitive drum that uses electrostatic charges to attract toner particles
    -monochrome lasers(high quality, quick, b&w)
    -colour laser printers(cheap, poor quality, lower resolution)
  20. 20Ink jet printers?-Good for home use; cheaper to buy, expensive to run, slow
    -spays ink onto paper
    -high resolution; better quality.
  21. 21Multi-function printers?-Include a built in scanner
    -suitable for small office/home use.
  22. 22Dot matrix printers?-Used for multi part stationery
    -quick, continuous
    -used in industrial situations where high volume prints are needed
    -lower quality.
  23. 23Speakers?-5.1 surround stereo sound(phone,head phones, monitor)
    -everyone in room can hear
    -creates atmosphere on presentation
    -convert text into sound
    -disturbs people
    -expensive.
  24. 24How to chose an output device for an image?-depends on image
    -might require high resolution
    -how many people viewing screen
    -environment(theater, conference room)
    -high or low quality
    -need to be fast
    -how much to print
    -what type of paper is needed
    -what size of paper
  25. 25What is a system software?-operation systems, utility software
    -allows user to use hardware of a device
    -manages memory when computer is running another task
    -controls where data is stored on disk
    -communicating with input/output device
    -deals with data stored on hard drive
    -deals with errors
    -provides GUI interface
    -system security.
  26. 26Application software?-Needed for users to carry out specific tasks
    -must be compatible with operating system
    -processes;text, image, video, sound
    -multimedia software.
  27. 27Features of word processing?-add images
    -text based
    -edit font, size, colours, layout
    -grammar/spell check, thesaurus, dictionary, word count
    -wizards
    -template
    -mail merge
    -share projects.
  28. 28Features of desktop publishing?-Text/images
    -focuses on document layouts
    -basic drawing capabilities
    -more flexible than word processor
    -leaflets, brochures, letters, cards, website design.
  29. 29Waveform features?-High quality
    -high file size
    -can change pitch
    -change pattern of waves
    -change speed
    -change volume
    -cut/paste/copy sections of sound waves
    -mix sounds
    -loop sounds
    -apply effects(echos, fading)
    -write music using notes
    -generate sounds
    -connect an instrument
    -autotune
    -change instrument sound
  30. 30multimedia features?-presentation software
    -edit text
    -change font
    -create animations
    -use templates
    -use built in styles
    -add sounds/voice overs
    -education
    -training material
    -business advertisement
    -create handouts
    -create notes
    -automatically times
    -built in transitions/templates
  31. 31Web authorizing software features?-Creates webpages via dragon drop features
    -creates HTML for you
    -easy to add menus
    -can add links, pictures, menus, n submission forms without having to know code
    -Cascading Styling Sheets
    -easy to upload to internet
  32. 32Features of email?-Contact details set up
    -send emails to multiple people
    -forward emails
    -create carbon and blind copies
    -set up folders and direct mail into folders
    -set up high priority emails
    -set up automatic replies
    -electronic signatures
    -built in virus checks
  33. 33Features of a web browser?-allow access + navigate www or internet
    -homepage
    -favorites
    -RSS feeds(simple sindications;updates for websites)
    -look at history
    -ad blockers
    -tabs open/close
  34. 34Why do we store user documents/data?-So they can be easily edited
    -can be backed up
    -transfer
  35. 35Disadvantages of storing user documents/data?-takes up a lot of space(high resolution media..)
    -storing high resultion videos require compression (loses quality)
    -data can become corrupt
  36. 36Features of bitmap image specialized software?-made up of pixels
    -resolution=no. of pixels
    -allows detailed images
    -have to create pixels when re-sizing a bitmap image, reduces quality
    -can re-size images
    -crop
    -airbrush
    -remove red eye
    -add effects(water colour..)
    -use layers to create composite images (overlapping)
  37. 37Features of vector graphics/images specialized software?-made up of lines
    -stores position/length of lines numbers
    -can re-size vector graphics(unsuitable for photographs)
    -small file size
    -not detailed;unsuitable for photographs
    -good for cartoon based graphics/computer aided design
    -mostly 3d
    -limited by compatibility(needs specific software)
  38. 38features of moving images?-Consists of still image frames
    -24 frames per second(standard)
  39. 39Features of a video editing software?-cut, copy, paste sections of video
    -adjust brightness
    add effects
    -change speed
    -change colours
    -add titles
    -add sound effects/music
    create DVD menus/chapters
    -raw, uncompressed video=large file size
    -compressed video=small file size(lower quality)
  40. 40Features of animation software?-2d/3d
    -vector based
    -create frames
    -create frames
    can hand draw on graphics pad
    -use key frames
  41. 41—

Information

Description
AS - Level ICT Flashcards on ICT unit 2, created by hanna akhrass on 15/12/2015.
Created by
hanna akhrass
Views
0
Rating

Feedback

What is it about?

What do you think of the new look?

How do you like it?