1. Commonly Used Measures of
Computer System Effectiveness
WHAT’S DRAGGING YOUR COMPUTER
DOWN?
RON MCGARY

2. What is Computer System Effectiveness?
What are the options?
Maintenance of Computer Systems

3. Performance Performance and effectiveness go
and hand in hand or complement each
Effectiveness other. Effectiveness cannot be
achieved without performance, and
performance can be attained
through file system maintenance,
keeping different versions of
software in their own directories,
and design home directories to
match the functions of users in an
organization.

4. Computer System Effectiveness
Computer operating systems are critically important to the user, because
without the operating system, nothing else will function as it is supposed to,
just like a heart of a human, it has to be maintained. Listed below are couple
of items that can be used once a schedule is setup to help maintain the
computer so that optimal effectiveness can be achieved.
1. Setup a schedule to system updates
2. Setup a schedule for anti-virus updates, REGULARLY!
3. Delete Temporary Internet files automatically
4. Keep the files in a managed fashion

5. What are my options?
When a computer is not kept clean it will sow down and the effectiveness of
learning from your computer will something that will not be achieved,
because the amount of frustration generated from the slow system will
mount up, so the computer effectiveness will have an impact on the learning
effectiveness.

6. Other Measures for Computer System
Performance
From a study conducted by Windows NT and Netscape
Harvard University it was
found that by
benchmarking (somewhat
difficult) and through
statistics has shown the
effectiveness of operating
systems, cpu’s, and
memory (Brown).

7. The Economic Value of Increased System Utilization
For example, running a725 CPU system with 80% utilization produces the same total computational capability as running
a smaller 644 system at 90% utilization. This is an 81 CPU difference. Figure $25,000 for the unit cost of a CPU on the T3E, purchased in
quantity, then a 10% utilization improvement approximately translates into a $2,000,000 cost savings (these figures are current
as of November 1999).

8. In Summary

9. Work Cited
Brown, Aaron. Harvard University, Measuring Computer Systems: How to
Measure Performance. 2000. 23 November 2012.
Palmer, Michael. Walters, Michael. Guide to Operating Systems, fourth
edition. 2012. Print.
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