Karteikarten
ICT UNIT 3 WJEC
Karten in diesem Stapel (81)
- 1INPUT DEVICES>WEBCAM
>MICROPHONE
>GRAPHICS TABLET
>MOUSE - 2WHAT IS AN MP3>COMPRESSED SOUND FILES
>FILES ARE QUICK TO TRANSFER - 3WHAT IS AN MIDI AND WHAT IS ITS PURPOSE?AN MIDI IS A MUSICAL INSTRUMENT DIGITAL INTERFACE ITS PURPOSE IS TO ALLOW INSTRUMENTS TO COMMUNICATE WITH EACH OTHER CONNECTED THROUGH A COMPUTER WHICH ALLOWS YOU TO EDIT, SAVE AND PLAYBACK
- 4WHAT IS A STAR NETWORK? NAME ITS ADVANTAGES AND DISADVANTAGESIN A STAR NETWORK EACH DEVICE HAS ITS OWN CABLE THAT CONNECTS TO A HUB
ADVANTAGES: >VERY RELIABLE IF ONE DEVICE BREAKS DOWN THE OTHERS CONTINUE TO WORK
>HIGH PERFORMING BECAUSE NO DATA COLLISIONS CAN OCCUR
DISADVANTAGES:
>EXPENSIVE TO INSTALL
>IF A HUB FAILS ALL CONNECTION TO DEVICES WILL HAVE NO CONNECTION - 5WHAT IS A RING NETWORK? NAME ITS ADVANTAGES AND DISADVANTAGESIN A RING NETWORK EACH NETWORK IS CONNECTED TO TWO OTHER DEVICES
ADVANTAGES:
>TRANSFERS DATA QUICKLY BECAUSE THERE IS NO DATA COLLISIONS
DISADVANTAGES:
>IF THE MAIN CABLE FAILS THEN THE WHOLE NETWORK WILL FAIL - 6WHAT IS A BUS NETWORK? NAME ITS ADVANTAGES AND DISADVANTAGESA BUS NETWORK IS WHEN ALL DEVICES ARE JOINED TO ONE CABLE
ADVANTAGES:
>EASY TO INSTALL
>QUITE CHEAP TO INSTALL BECAUSE IT DOESN'T REQUIRE MUCH CABLE
DISADVANTAGES:
>IF THE MAIN CABLE FAILS THE WHOLE NETWORK FAILS
>THE MORE WORKSTATIONS THE SLOWER THE NETWORK AS THERE ARE MORE DATA COLLISIONS - 7WHAT IS THE INTRANET?THE INTRANET IS A PRIVATE NETWORK USUALLY USED BY COMPANIES
- 8WHAT IS THE EXTRANET?THE EXTRANET IS THE SAME AS AN INTRANET HOWEVER IT CAN BE ACCESSED FROM PEOPLE OUTSIDE THE COMPANY
- 9NAME THIS INTERFACE AND ITS ADV&DISADVCOMMAND LINE INTERFACE
IT ALLOWS A USER TO INTERACT WITH A COMPUTER USING COMMANDS
ADV-THEY CAN RUN MANY PROGRAMMES, LITTLE STORAGE SPACE NEEDED
DISADV-INEXPERINCE USER WILL FIND THE INTERFACE HARD TO USE - 10WHAT IS THIS INTERFACE AND IT'S ADV AND DISADVMENU-DRIVEN INTERFACE
ADV-NO NEED TO LEARN A LOT OF COMMANDS SO IT IS IDEAL FOR BEGINNERS
DISADV-POOR DESIGNED INTERFACE CAN BE SLOW
- 11WHAT IS THIS INTERFACE & ITS ADV AND DISADVGRAPHICAL USER INTERFACE (GUI)
ADV-EASY TO NAVIGATE
DISADV-TAKES UP A LOT OF MEMORY
- 12ADVANTAGES OF VOICE RECOGNITION>SPEECH INPUT IS MUCH FASTER THAN TYPING
>NO NEED TO LEARN TO TYPE
>FASTER TO ISSUE COMMANDS - 13DISADVANTAGES OF VOICE RECOGNITION>TAKES TIME FOR A COMPUTER TO UNDERSTAND THE WAY A PERSON SPEAKS
>BACKGROUND INTERFERENCES
>CAN'T USE IN QUIET ENVIRONMENTS LIKE A LIBRARY
>MAY NOT RECOGNISE WORDS THAT SOUND THE SAME E.G TWO TO - 14TWO ADVANTAGES OF USING ICT SYSTEMS TO STORE AND PROCESS DATA>DATA IS EASILY SHARED
>DATA IS EASIER TO BACK UP
>DATA CAN BE EDITED MORE EASILY - 15TWO DISADVANTAGES OF USING ICT SYSTEMS TO STORE AND PROCESS DATA>LOSS OF DATA DUE TO POWER CUTS
>COPYRIGHT ISSUES
>RELIANCE ON NETWORKS, NETWORK MAY FAIL
>SECURITY ISSUES- VIRUSES
>HACKING - 16WHAT IS THE PERSISTANCE OF VISION?WHEN THE HUMAN EYE CONTINUES TO SEE THE IMAGE AFTER ITS DISAPPEARED FOR SHORT AMOUNT OF TIME
- 17NAME THE ANIMATION TECHNIQUE THAT IS USED TO GENERATE THE INBETWEEN FRAMESTWEENING
- 18NAME THE ANIMATION TECHNIQUE THAT IS USED TO TRACK THE FRAME-BY-FRAME MOTION OF AN OBJECTONION SKINNING
- 19WHAT IS ROTOSCOPING?TRACING OR DRAWING AROUND THE IMAGE
- 20WHAT IS STOP MOTIONMAKING A SLIGHT CHANGE TO A FRAME SO WHEN YOU PLAY THE ANIMATION BACK IT APPEARS AS IF THE IMAGE IS MOVING
- 21GIVE 3 SERVICES AVAILABLE AT AN ATM>CASH
>CHECK BALANCE
>CHANGE PIN NUMBER
>TRANSFER MONEY - 22GIVE TWO ADVANTAGES OF AN ATM TO THE CUSTOMER>PROVIDES 24 HOUR SERVICE
>ACCESS THEM AT MANY LOCATIONS
>CUTS DOWN QUEUES IN BANKS SO ITS FASTER FOR THE CUSTOMER - 23GIVE TWO ADVANTAGES OF AN ATM TO THE BANK>SAVES ON STAFF COST
>ALLOWS STAFF TO CONCENTRATE MORE ON OTHER WORK
>SAVES ON BUILDING COSTS - 24WHAT IS A HTMLA HTML IS A LANGUAGE USED TO CREATE A WEBPAGE
- 25WHAT IS THE UNIQUE ADDRESS FOR EVERY WEBSITE ON THE INTERNET CALLED?URL
- 26IN ORDER TO ALLOW PEOPLE TO VIEW A WEBSITE OVER THE INTERNET IT MUST BE..HOSTED ON A WEBSERVER
- 27WHAT IS MEANT BY A HOTSPOT?IT IS AN IMAGE OR AREA USED TO LINK YOU TO A WEBPAGE
- 28HOME PAGE?MAIN/FIRST PAGE OF A WEBSITE
- 29HYPERLINK?A LINK THAT DIRECTS A USER FROM ONE PART OF A WEBSITE TO ANOTHER OR ONE WEBPAGE TO ANOTHER
- 30LEADERBOARD?A BANNER USED FOR ADVERTISING
- 31WHAT IS THE PURPOSE OF THE GOLDEN TRIANGLE?TO ENSURE THE WEBSITE GETS AS MUCH VISITORS AS POSSIBLE BECAUSE IT IS THE PLACE WHERE MOST PEOPLE LOOK FIRST
- 32WHAT IS A STORY BOARD?A STORY BOARD IS A PLAN WHICH INVOLVES A SCENE BY SCENE DISCRIPTION FOR AN ANIMATION
- 33STATE 5 PRINCIPLES OF THE DATA PROTECTION ACT>DATA MUST BE ACCURATE AND KEPT UP TO DATE
>DATA MUST BE DELETED WHEN NO LONGER NEEDED
>DATA MUST BE ADEQUATE, RELEVANT AND NOT EXCESSIVE
>DATA MUST BE FAIRLY AND LAWFULLY PROCESSED
>DATA MUST NOT BE TRANSFERRED OUTSIDE EU COUNTRIES WITHOUT ADEQUATE PROVISON - 34STATE TWO EXEMPTIONS OF THE DPA (DATA PROTECTION ACT)>IF IT PREVENTS CRIME
>PERSONAL DATA THAT CONSISTS OF EDUCATIONAL RECORDS
>PERSONAL DATA RELATING TO A PERSONS PHYSICAL OR MENTAL HEALTH
>ADOPTION RECORDS - 35STATE A CRIME BY THE COMPUTER MISUSE ACT AND DECRIBE THE CONSEQUENCE AND A METHOD OF PREVENTION>HACKING, INDETITY THEFT, ENCRYPTION
>FRAUD, FINANCIAL LOSS, ANTI-SPYWARE SOFTWARE - 36NAME 3 RECENT DEVELOPMENTS OF ICT SYSTEMS HAVING AN IMPACT ON HOW PEOPLE WORK>WIFI
>VIDEO CONFERENCING
>TABLETS
>TELEWORKING - 37LIST THE ADVANTAGES AND DISADVANTAGES OF ICT SYSTEMS HAVING AN IMPACT ON WORK FOR THE EMPLOYEESADVANTAGES:
>LESS TIME AWAY FROM HOME
>GREENER, LESS POLLUTION
>IDEAL FOR DISABLED
DISADVANTAGES:
>LESS FACE TO FACE CONTACT
>SOME TELEWORKERS ARE PAID LESS THAN OFFICE WORKERS
>WEAK SIGNALS CAN MAKE IT HARD - 38ADVANTAGES AND DISADVANTAGES TO THE EMPLOYERADVANTAGES:
>SAVES OFFICE SPACE
>MEETINGS CAN BE HELD ANYWHERE IN THE WORLD
DISADVANTAGES:
>LOSS OF PERSONAL CONTACT WITH EMPLOYEES
>INITIAL COST OF SETTING UP EQUIPMENT AT HOME - 39WHAT ARE THE FOUR FEATURES OF A GUI'WIMP'
>WINDOWS
>ICONS
>MENUS
>POINTERS - 40ADVANTAGE OF BIOMETRICSUNIQUE TO EACH INDIVIDUAL
- 41TOUCH SENSITIVESAVES WORK SPACE AS NO KEYBOARD OR MOUSE ARE REQUIRED
- 42WHAT IS A SWITCH?A SWITCH LOOKS AT EACH PACKET OF DATA AND SENDS IT TO THE COMPUTER IT WAS INTENDED FOR
- 43WHAT IS A GATEWAY?A GATEWAY LINKS TO DIFFERENT NETWORKS (E.G LAN AND WAN)
- 44WHAT IS A BRIDGE?A BRIDGE LINKS TO SIMILAR NETWORKS
(E.G LAN TO LAN) - 45TWO ADVANTAGES OF COMPUTER NETWORKS OVER STANDALONE COMPUTERS>SHARE SOFTWARE
>SHARE HARDWARD
>EASY TO MONITOR THE NETWORK ACTIVITY
>CAN ACCESS WORK FROM ANY COMPUTER
>HAS A CENTRAL BACKUP - 46GIVE A DISADVANTAGE OF NETWORKS OVER STANDALONE COMPUTERS>IF ONE SERVER IS DOWN ALL OTHER STATIONS ON THE NETWORK ARE AFFECTED
- 47WHAT IS AN INTRANETA CLOSED PRIVATE NETWORK
- 48WHAT IS AN EXTRANET> AN EXTERNAL ACCESS TO THE INTRANET
- 49advantage of data loggingaccurate readings
data collected automatically
can be used in dangerous situations
No human interaction required
operates 24/7 - 50disadvantage of data logginginitial cost of equipment
- 51One use of an expert system in medicinehelps diagnose illness
- 522 advantages of using an experts system>can be kept up to date
>more accuarate (diagnosis)
>Doesn't forget like a (doctor) - 53disadvantages of using and expert system>lack of human touch
>not 100% accurate
>over reliance on the system - 543 tasks carried out by robots and 3 advantages of using robots3 tasks: spray painting, assembling parts and carrying heavy parts
>robot doesn't get bored of doing repetitive jobs
>saves on employment costs
>work 24/7 - 55disadvantage of using robots over humans>Loss of human jobs
>high initial starting cost
>maintenance costs - 56what is meant by an operating system?A software that runs a computer system
- 573 functions of an operating systems>enables software to run
>maximises the use of memory
>deals with errors - 58Name a type of bannerLeaderboard
- 59what is the golden triangle and why do websites ensure they are in it?The golden triangle is an area of a webpage a user focuses on when a search engines results are displayed. Websites want to be in it to ensure they get the most traffic as possible.
- 60name a device that could be used to draw an image on a computer>joystick
>mouse
>graphics tablet
>stylus pen
>interactive whiteboard - 61what is meant by a bitmap graphic?an image made up of pixels
- 62what is a bitmap image?Made up of pixels. It has a large file size. When enlarged they lose quality.
- 63what is a vector image?Made up of objects, files size is small and when enlarged it doesn't lose quality
- 64what is meant by optimising images and give an advantageoptimising images is reducing the file size of the image an advantage is that it saves memory and storage space
- 65storage devices>usb
>SD card - 66what is a WANWide Area Network. it covers wide areas and is expensive to install and run
- 67What is a LAN?Local Area Network. It is usually located in a single building. It is cheap to install and run
- 68Advantages of a network over standalone computers>share hardware
>share software
>central back up - 69disadvantage of networks>network manager may need to be employed so it is expensive
>if server is down all stations are affected
>initial costs of services can be expensive - 70what is the internetA huge group of networks joined together. Each of these networks consists of lots of smaller networks
- 71How do supermarkets use PoS systems?A barcode is scanned and the price of the product is displayed on the screen. This will deduct one from the stock level to compare the number in stock with the restock level. If the stock level goes below a certain number then there is an automatic reorder
- 72Other than W.I.M.P name 3 other different features of a GUI>tutorials
>customised desktop
>colour
>task bar
>on screen keyboard - 73two exemptions from the Data protection act>Prevents a crime
>Adoption records
>capture of offenders
>educational records or social work
>examination marks
>personal data relating to some ones physical or mental health - 74Name a suitable format for downloading music from the internetmp3
- 75Give on advantage of the format and one disadvantage>files are compressed
-Loss of quality - 76What is the purpose of validation?It checks data is sensible
- 77Name two validation techniquesHash total- meaningless data
Batch total-data with a purpose
Presence check
Range check
Format check - 781)Name one example of data collected for banking, 2)describe how the data is input 3)describe what information is out put from banking and 4)state the method used1)ATMS:PIN
2)KEYPAD
3)BALANCE CHEQUE
4)Real time processing - 791)Name one example of data collected in e-commerce 2)how the data is input 3) what is the output 4)what is the method used1)Bank card detail
2)mouse, keyboard..
3)A receipt is sent to customer through email
4)real-time transaction processing - 801)Name one example of how data is collected in payroll 2)name the input 3)the output 4)state the process1)Hours worked
2)Timesheets
3)payslip
4)Batch processing - 81—
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- Beschreibung
- Karteikarten am ICT UNIT 3 WJEC, erstellt von sophie mg am 11/05/2016.
- Erstellt von
- sophie mg
- Aufrufe
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