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Yr 11 Mock Revision List. Uses of different software packages DTP software Data, information and knowledge Bluetooth, GIS and Internet Connections Online Shopping Email – cc, bcc, attachments] Spreadsheets – formulae Data Logging and control Input devices for specific users
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Yr 11 Mock Revision List • Uses of different software packages • DTP software • Data, information and knowledge • Bluetooth, GIS and Internet Connections • Online Shopping • Email – cc, bcc, attachments] • Spreadsheets – formulae • Data Logging and control • Input devices for specific users • Databases – incl. queries, GIGO, advantages • Electronic registration methods • Online Bookings Revision Websites: http://www.teach-ict.com (go to KS4 GCSE ICT) http://www.bbc.co.uk/schools/gcsebitesize/ict/
DTP Software • Desktop Publishing Software e.g. Publisher • What is it used for? • Posters, flyers, leaflets • What are the features of DTP? • Templates, word art, headers/footers, borders, graphics • What are the advantages? • High quality, professional looking publications; ready made templates; easily edit the layout; colour schemes are available
Data and Information • Data consists of raw facts and figures • E.g. 17, 17, 18, 20, 20, 21, 22, 22, 23 • No apparent meaning • BUT if told these are degrees centigrade, then the data becomes INFORMATION • Data given understanding is knowledge Data + Meaning = Information
Bluetooth • Wireless technology that allows devices to share files e.g. music, videos, pictures • Connect phones to phones, to head sets, to speakers etc… • ONLY small distances (personal area network) up to 10 meters • NOT to connect to the internet!
GIS – Geographical Information Systems • Uses a combination of hardware, software and data to manage, analyse and display all kinds of geographical data • E.g. maps, charts, reports • THINK ABOUT maps and location services on phones • What are the advantages? What are the disadvantages?
Internet Connections – Dial Up • Dial up – using telephone system to connect to the internet. Required modem which made sure digital signals from computers were compatible with those of telephone lines • ADVANTAGES: most residential phone lines are capable of supporting dial up so can be in areas where broadband is unavailable; Also, users can dial up from different locations • DISADVANTAGES: Slow download speeds; blocks phone line while using the internet; practically impossible to watch videos or download music
Internet Connections - Broadband • Includes ISDN and ADSL • Uses digital signals so no need for a modem • Fast speeds and permanently connected • Does not block the phone line and several computers can be connected at once – including wirelessly • BUT speeds vary according to other local usage and distance from the exchange • Greater risk of hacking due to being permanently on
Online Shopping • Almost anything can be bought online nowadays • Think about your own shopping experiences • What are the advantages? (save petrol, people with disabilities, range of goods, items delivered incl. heavy items, businesses can easily expand internationally, no overheads etc) • What are the disadvantages of shopping online? (wait for delivery, only see the goods – cannot touch them or try them on, pay to return items, items could be damaged etc)
Email: CC, BCC and attachments • Cc – Carbon Copy. Used to send a copy of the email to someone else • Bcc – Blind Carbon Copy. Used if you don’t want the main recipient of the email to see who else you have copied it to • Attachments can be any file stored on a computer e.g. picture, sound, document • BUT restrictions on file size
Spreadsheets • Benefits: automatic recalculation; graphs and charts can be created easily, replication of values and formula in a column or row, formula can be stored and reused, easy to calculate large amount of values • If asked for formula ALWAYS start with “=“ and use cell references • E.g. =A1+A2 =SUM(A1:A5)
Data Logging and Control • Data logging allows you to record a series of measurements taken by sensors • Results are logged and stored on a computer for later use • Data can be collected automatically at set intervals e.g. temperature, air pressure, humidity, • Advantages: data collection is automatic – no intervention is necessary; readings taken continuously over long periods of time; readings more accurate; sensors can be placed in areas too dangerous for humans • Control Systems – use sensors to control a computer e.g. environmental control • Measurements are analogue (e.g. temperature) and so need to be converted to digital using an Analogue to Digital Convertor (ADC)
Devices for Specific Users • Voice-recognition software • Text-to-voice software • Braille Keyboards • Touch-sensitive data entry devices (e.g. touch screens) • Eye typer • Foot mouse
Databases (Information Handling) • Benefits: fast access – finding data is quicker that in a system where data is stored on paper; easy to edit – easy to find data and update it; validation – checking that the data being entered is appropriate (GIGO); Reports – results can be used to produce printed reports; Security – can set passwords • RECORD – the whole information about one thing e.g. a person • FIELD – one piece of information within a record e.g. Address • TABLE – all records e.g. customers • PRIMARY KEY – unique identification of a record to make sure each record is unique e.g. Customer ID, Product ID
Databases – Searching for Information • Use queries to search for information • Simple search – looks for data in one field only e.g. Town = Beaconsfield • Complex search – looks for data across multiple fields e.g Town = Beaconsfield AND Age >16
Electronic Registration • Most schools now use computer registration for students • In this school – SIMS • Makes it easy to determine whether a pupil is absent and highlight patterns in absenteeism • Some schools use swipe card registration or OMR (optical mark recognition) • SIMS can be used on laptop, PC or iPad • Biometric (fingerprint) registration is now much more common • Statistics can be easily and quickly found for heads of year – computer works it all out for them!
Online Bookings • Holidays, cinema, activities etc • Many booking systems are now web based and can be booked over the internet • Can check whether seats/rooms are available and how much the are • Payment usually by credit card • Tickets can be mailed through the post or emailed to be later printed • A large database is actually used to store the companies bookings and must ensure double bookings cannot be made • Advantages/Disadvantages?
Examinations • The written exams are 40% of the entire course • In May you will sit two exams of 1.5 hours • When you are in the exam there are three golden rules: • Read the question • Read the question • Answer the question
Banned Words! Never use words such as “thing”, “something” or “stuff” BAD : A thing for reading stuff on shopping items GOOD : A device for reading barcodes on shopping items Never use words such as “quicker”, “easier” and “cheaper” – you will usually only score marks if they are qualified BAD: An email is quicker, easier and cheaper GOOD : An email is easier to send than taking a letter to a post-box. It can be quicker to receive a reply as it arrives in a persons inbox instantly and it is cheaper than buying stamps. Always make sure the examiner can understand your answer – try to avoid using the word “it” BAD : It is faster GOOD : Serving customers is faster because…