Privacy and Security

Posted on Thursday, 8 December 2011 by Mrs Nunn | 0 comments

"Describe the dangers that are inherent in the use of computers to manage files of personal data and describe simple processes that protect the security and integrity of data."




Task 1

Use the worksheet 'Data Security' and the link below to answer the quesions.

Data Security

Extension Task

Use the worksheet in the shared area CG1 Folder > Privacy and Security called "Biometrics and security" click on the link on the worksheet to watch the video and answer the questions in Word.

Data Protection Act 1998

Posted on Tuesday, 6 December 2011 by Mrs Nunn | 0 comments

Data stored about an individual is personal data.
Each of us has a lot of personal information stored about us - birth; marriage; employment; bank details; driving details; taxes; etc...

Safeguards to help prevent the misuse of files of personal data include...
Ensuring there is a password system of access
Any access to files should be audited - details of who accessed the files and when.
Computer users who store personal data must register with the Data Protection Register.

The organisation storing the data has obligations..
  • not to store or process data other than for a lawful purpose
  • to obtain and process data fairly and lawfully
  • to store only data that is relevant to the stated purpose
  • not to infringe the rights of the data subject
  • to make sure the data is accurate and up-to-date
  • not to hold the data longer than necessary.
  • to protect the data with the proper security.
  • not to send the data abroad other than to EU countries unless they have adequate data protection in place
The individual whose data is stored has rights...

  • to view data stored
  • to have data corrected or erased.
  • to be compensated for damage or distress caused by unlawful processing of data
There are some Exemptions from the Data Protection Act :
  • data used for home use or recreational purposes eg club members
  • data which may affect national security
  • data used to fight crime
  • data used for calculating wages, pensions or tax
  • data used for distributing information eg mailing lists
Task 1
Complete the  Data Protection Act worksheet.

Task 2
Exam Question:


June 2007
9. A local council stores data on residents. The data includes names, addresses and the value of their
houses. Employees access the council’s computer system using usernames and passwords and have
access to residents’ data.

(b) The council complies with the Data Protection Act by ensuring that residents’ data is
obtained lawfully, held securely and held for no longer than necessary. Describe three other
ways in which the council must operate in order to comply with the Data Protection Act. [3]

Memory Management

Posted on Thursday, 1 December 2011 by Mrs Nunn | 0 comments

Memory Management


The memory manager is responsible for the main physical storage of the system and the processing that is required


Exam Question

Describe in detail the role of the operating system in managing the some of the resources of a computer. [5]

Research Task

Explain the term fragmentation and briefly describe the effect that fragmentation will have on disc access.
Describe what happens during defragmentation.


Use the information in the slides for today and last lesson to help you.