ICT AS Unit 2: Information: Management and manipulation (30% AS)

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 Subject:  ICT AS
  Teacher:  S Maney
  Unit 2
  Unit breakdown
  Duration 16 weeks
  


Unit 2 Breakdown
 Test papers
11.1  Data Capture 2004 Jan paper (Mark Scheme) or June paper (Mark Scheme)
11.2  Verification and Validation 2005 Jan paper (Mark Scheme) or June paper (Mark Scheme)
11.3  Organisation of data for effective retrieval 2006 Jan paper (Mark Scheme) or June paper (Mark Scheme)
11.4  Software 2007 Jan paper (Mark Scheme) or June paper (Mark Scheme)
11.5  Manipulation and/or processing 2008 Jan paper (Mark Scheme) or June paper (Mark Scheme)
11.6  Dissemination/Distribution
11.7  Hardware: Nature, capabilities and limitations
11.8  Security/Backups
11.9  Network Environments
11.10  Human Computer Interface


Week Details & links:
Assessed work / further work
1
  11.1 Capturing Data:
The focus will be on data input. There are a number of issues to be discussed:
  • What devices are available
  • What criteria could be used for choosing a device
 Homework:
Read pages 123-132
Make clear and concise notes
Data capture questions
2
  11.2 Verification and Validation
  • The concepts of validation and verification will be discussed
  • Different validation techniques will be identified
 Homework:
Read pages
Make clear and concise notes
3
 11.2 Verification and Validation cont.....
  • The use and implementation of verification when transmitting data will be covered
  • Parity (odd and even)
  • Efficiency of data transmission (%)
  • By using the ASCII table students will complete validation task
 Homework:
Read pages
Make clear and concise notes
Validation/Verification questions
4
 11.3 Organisation of data for effective retrieval: From Data to Information
  • The concept of a relational database will be delivered
  • Flat file v's relational data structures (Advantages of relational structure)
    • Consistency of data (data integrity)
    • Easier updating of data
    • No duplication of data (Redundancy)
    • Easier to search data (from data to information)
  • Pupils will build a relational database with the entities Footballer, Agent and Club


 Homework:
Read pages
Make clear and concise notes
Revision for Exam 2.1 next week
Flat File/Relational exam Question
5
 11.3 Organisation of data for effective retrieval: From Data to Information cont.....
  • Relational advantages and stucture will be discussed in further depth to week 4
  • ER diagrams will be explained ER and ER1
Database task
Interim Exam 2.1
Topic focus: 11.1 11.2 11.3
ASS ICT exam date: Friday 8th Feb P2
ASR ICT exam date Friday 8th Feb P3
Half Term See units 1 and 3 also
6
 (11.4 often has the most marks associated with it on the Unit 2 exam and therefore 2 1/2 weeks has been set aside for it)
11.4 Software
  • The two distinct strands of  software will be identified and discussed:
    • Systems
    • Applications software
  • Further investigation into systems software will be investigated:
    • OS,NOS,Defrag,Anti Virus, Firewall, Compression tools, Health checks, Performance monitors, garbage collection, file management
  • Features of generic application software will be investigated
    • Spreadsheet, database, word processing, Desk Top Publishing, Web browsers

 Homework:
Read pages
Make clear and concise notes
7
 11.4 Software
  • Distinct ways of purchasing application software will be discussed, and the advantages/disadvantages of each
    • Off the shelf
    • Tailored from an existing product
    • Custom Built (Bespoke)

Software task

 Homework:
Read pages
Make clear and concise notes
Software questions
8
 11.4 Software strands
Software task
 Homework:
Read pages
Make clear and concise notes
9
Homework:
Read pages
Make clear and concise notes
10

Homework:
Read pages
Make clear and concise notes
Easter holidays (See Unit 3 for homework)
1
 Interim Exam 2.2
2
 Examination feedback
11.5 Manipulation and/or processing
Main focus of discussion will the different types of processing commonly used. The points raised are:
  • The name and characteristic (Batch, realt time, pseudo-real-time, interactive)
  • Distinct features of different types of processing
  • Appropriate processing for a given context

Processing Task


3
 11.8 Security/Backup (Miss Beekman)
  • The need for backups (Including the DPA)
  • Issues and implications of a backup strategy

11.5 Manipulation and/or processing

  		Report (two pages of text + any relevant images) on:
  • Differences between Vector/Btimap images and the resource implications associated with them.
  • Diferences between Sampled/Synthesised music  and the resource implications associated with them.
Your report should include where a data fromat is appropriate or NOT appropriate, different format resolutions,colour depth, bit rate, and sample rate, quoting CD quality etc...
4
 11.8 Security/Backup (Miss Beekman)
  • The need for backups (Including the DPA)
  • Issues and implications of a backup strategy
11.9 Networks
Focus:
  • The advantages of using networks over stand alone systems
  • Differences between LAN and WAN
  • Hardware elements (Network cards - ethernet and wireless, Cabling, Bridge, Repeater, Modem)
  • NOS
  • Topologies (Star, Bus, Ring and Mesh)
  • Implications of different Topologies

 Homework:
Jan 05 paper using text book (Not Mark scheme)
5
 11.10 Human Computer Interface (HCI)
The implications of an effective interface will be discussed, IT and non IT. Different types of interface will be identified, examined, and a judgement over the most appropriate interface for different scenarios will be made. Areas of discussion will include:
6
 11.7 Hardware: Nature, limitations and capabilities
Input
  • Keyboard, Pointing device (Mouse), Touch screen, Graphics tablet
Storage
  • Hard Drive, External Hard Drive, Floppy Disk, CD (CDR CDRW), DVD (DVDR DVDRW-+)
Processing
Output
  • Monitors, Speakers, Printers, Projectors
Revision Sessions:

Thursday:
  • Databases v's flatfiles.
  • Database architecture.
  • Validation (7 types) and verification
  • ER diagrams and Notation style

Q9 Jan 06, Q6+9 June 05, Q5 Jan 08, Q7 June 07 Q3+5 June 06, Q8 Jan 07

Friday:
  • Software strands (Systems and applications)
  • Features of generic Application software
  • Features of Systems software (Defrag, File compression, OS, Anti Virus, Firewall)
  • Software upgrade options/criteria
Q1+3 Jan 06, Q8 June 06, Q5 Jan 07, Q3 June 07, Q4+6 Jan 08,
7
Revision Sessions:
Monday:


Tuesday:
  • Backups and security
Q4 Jan 06, Q6+7 June 06, Q5 June 07

Wednesday:

  • Data - different formats, Text, image, video, sound, vector, bitmap, sampled, sequenced (digitised)
  • Processing - Batch, Real time, Pseudo real time (Transaction), Interactive
  • Information


Thursday:
  • Databases

Friday:

Study Leave

8

Half Term