1. 
   Sectors
   Hard disk drives are split into tracks and sectors, which is a way for the computer to identify where particular files or pieces of data are stored.
   Found op http://www.mantex.co.uk/samples/glo-5.htm
   
   
2. 
   Sectors
   Unit trusts and OEICs are divided into a variety of categories, known as sectors, to keep together funds of a similar type so that investors can compare funds with similar objectives and investment strategies. Categories include 'Money market' funds, 'European' funds, 'North American' funds etc.
   Found op http://www.henderson.com/sites/henderson/its/glossary.xhtml?letter=S
   
   
3. 
   Sectors
   A distinct subset of a market, society, industry, or economy, whose components share similar characteristics. Stocks are often grouped into different sectors depending upon the company's business.
   Found op http://www.digitallook.com/dlmedia/help/1004/glossary.html
   
   
4. 
   sectors
   (economics) economic groupings used to generalise patterns of expenditure and use.
   Found op http://en.wikipedia.org/wiki/Glossary_of_environmental_science
   
   
5. 
   sectors
   1) Areas 2) Circle parts 3) Districts 4) Divisions 5) Portions between radii 6) They may be private 7) Zones
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/sectors/1
   
   

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