How to revive the old floppy drive?

I have had two floppy drive with the bad, the symptoms can not read and write, there is no floppy disk is always prompt, and occasionally be able to read and write often halfway error, blue screen phenomenon. Watching two old floppy gesture, thought of "Computer News" has been introduced on the head can lead to not offset the normal read and write, so they decided to explore what happens yourself.

First, remove the floppy drive before the plastic panel, and then open the top of the closures, take a floppy disk inserted and removed several times, to look at whether the activities of mechanical parts such as heads and flexible, whether slow or stuck phenomenon, not found after several tests anomaly, in the end is what causes the normal floppy drive can not read and write it?

Recall information on the introduced offset if the heads can read and write their own formatted floppy disk, so they open the case, the power lines and data lines are already open the cover back into the floppy drive, the boot and a blank, formatted floppy disk , saw a few heads back and forth repeatedly appeared error box "No floppy disk" format can not be, it seems the problem is not a simple head offset. Shut down and remove the floppy drive, carefully watched the head of the structure and found the head and disk contact is through the head on a spring pressure to achieve, is it too small to cause the contact pressure can not read and write floppy disks? Holding forceps gently lift the tape head, feeling very loose and weak, and careful observation of compression springs, one end of spring found three steps, apparently used to adjust the spring pressure, but now spring is in the best next step, so use forceps the spring to move a step above most. Boot test, reading, writing, formatting, all floppy disk as usual, the problem is resolved.

Contact pressure due to head and the disk is too small can not read and write the question properly confirmed. Then quickly open another floppy drive, follow the same method of debugging, really effective immediately. After a long trial, the first floppy drive is very stable and reliable, the second floppy accidental previous symptoms. Re-open a second floppy drive, won the compression spring, spring has been found that the plastic deformation, elastic enough (Note: The floppy drive is a hybrid brand), resulting in less stable. I found a little improvement of the same size of the spring, according to a production stood back, after a trial effect was very good. If you do not have the same spring, the spring can also be the original direction in the opposite direction to the elastic force twisting, and to bring a certain amount of plastic deformation, increase its elasticity, the effect is also very good.

This shows that the floppy drive can not read and write properly or do not recognize when a floppy disk, may not have big problems, not easily discarded, but not necessarily head offset, and do not easily adjust the head position to avoid a mess the more adjusted to floppy repair more difficult. I think people often play on the computer side there are several such floppy sure, might do the same method a try.







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New changes in PMP certification exam

Please update the new PMP exam training materials.

PMP certification exam the third edition will be September 30, 2005 Fri 2:00 opening. Please test the new version to update the training materials. The following is an outline of examination.

This outline will appear in the "project management examination standards," a book in the PMI Bookstore will be on sale around the third quarter of 2005. This book will detail later how the PMP certification exam is composed of. And provide project management professional certification related to the maturity of the latest global information.

Revised PMP certification test knowledge of the following six areas:

Percentage of the task domain knowledge
Project start to project selection methods
Definition
Records of project risks, assumptions and limitations
Identification and implementation of stakeholder analysis
Develop project charter
Project Charter was approved by 11.59
Project definition and recording requirements, constraints and assumptions
Determine the project team and define roles and responsibilities
Establishing work breakdown structures
Develop change management plans
Definition of tasks and risk strategy
Plan approved
To start the session 22.7
Implementation of the project implementation of the project plan tasks
Ensure a common understanding and establish expectations
Implementation of the procurement project resources
Management of resource allocation
Implementation of the Quality Management Plan
Implementation of approved changes
Implementation of approved actions and work areas
27.5 improve team performance
Project to measure project performance monitoring
Verification and change management projects
Ensure that project deliverables meet quality standards
Monitoring all risks 21.03
Was finally accepted project closeout items
Access to financial, legal and administrative closeout
Release project resources
Identify, document and communicate lessons learned
Establishment and distribution of the final project report
Archiving and retaining project records
Measure customer satisfaction 8.57
Professional and social responsibility to ensure that personal integrity
To make a contribution to the project management knowledge base
Enhance the competitiveness of individual career
Promote interaction between stakeholders 8.61
Total 100.00

The remaining changes are as follows:

25 exam test questions: In the new exam will be distributed randomly to get the answers to these questions with statistical information to decide whether to use in future examinations. This 25 questions included in the 200 Title. But will not be used as the basis through or not. Through or under the 175 title to decide.

Score analysis: now points to the analysis of all the candidates to explain their overall position adopted or not adopted. In addition, candidates will be provided for each field of knowledge to the general accurate answers. In order to pass PMP certification exam, candidates must score in the 175 title in at least 143 questions answered correctly. Possible in one or a few areas you did not meet a standard, but in general still passed the exam (The following diagram shows the field of new exams each share of scale).

Development of eligibility criteria

With the development of project management professional, PMP certification also needs to develop. PMI PMP certification should ensure access to project management practitioners to understand new trends in project management, and meet professional development requirements reflected. Market research shows that employers want to hire a project leadership and management experience of project management practitioners.

To better meet this demand, PMI into the application process the tasks required to effectively lead and manage projects. Starting from August 30, candidates need to fill in different areas (see above) mission experience. This will be part of the application process.

However, PMP certification exam project management training and project management experience required number of hours remain unchanged.

PMP certification process of change

PMI is strengthening the work of the application process, so that a more rigorous certification process and customer focus. Changes include:

Improved new online application. And with the new test release, this user-friendly system will allow users to understand the certification process for the state.

Collection project contact information. As part of the application process, applicants will be asked to provide contact information for each project. Assessment of the application form during the review, if you want to review an application form. PMI will complete the application form and contact the manager to verify the project experience. .

Evaluation period. All applications submitted through the review process improvement review.

Immediate review of notice. E-mail notification will be pumped through the review of applicants. Throughout the review process will be electronically automated reminder to follow up candidates.

Year qualifying period. All applicants have a year to take the test. Candidates for approval of one year from the date of calculation.

Allow candidates to the limited number of examinations. Candidates have three opportunities a year to participate in PMP certification exam. If the candidate has not passed the third time. Candidates need not pass the third day, the wait for a year before the exam again.






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