Solved

what is a processor?

Posted on 2009-05-14
4
248 Views
Last Modified: 2012-05-07
Hi can anyone tell me what a processor is and does and if possible why the more of them is better?
0
Comment
Question by:ac_davis2002
  • 2
  • 2
4 Comments
 
LVL 4

Accepted Solution

by:
hugetoon earned 500 total points
ID: 24392863
The processor is the device that executes programs in your computer.

To do its work the processor communicates (and controls) other devices like Memory (RAM, ROM), peripherals (Disks, Video and Network adapters etc).
The communication with peripherals is done via a data bus (PCI, AGP ....)

When executed, programs reside in memory, for example when the computer is tourned on the processor reads and executes instructions stored in ROM, these instructions are often called BIOS.

The BIOS program tries to find a storage device where another program resides: the Operating System. Once found, parts of the Operating System are transferred from the storage device to RAM and the the processor starts to execute them.

The operating system loads more programs from disk to RAM (exe files for windows).

In a multitasking operating system many programs can be executed "in parallel". Actually they all reside in RAM and the processor switches between the very fast under the control of the operating system.

When you have many processors, if the operating system supports it (most do), the processors run program in parallel for real.

For example while one processor executes the operating system, the other executes your favorite FPS game.


 



0
 

Author Comment

by:ac_davis2002
ID: 24392878
Excellent!!
0
 

Author Closing Comment

by:ac_davis2002
ID: 31581816
First class
0
 
LVL 4

Expert Comment

by:hugetoon
ID: 24392971
Please note that the description is simplified, it would take several books to describe everything accurately and in detail.
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Power and BTU ratings calculation 13 71
USB Error 20 169
Windows Mirrored Raid - Failed HD *urgent* 7 79
extra RAM sticks on server board 9 35
The 6120xp switches seem to have a bug when you create a fiber port channel when you have a UCS fabric interconnects talking to them.  If you follow the Cisco guide for the UCS, the FC Port channel will never come up and it will say that there are n…
Learn about cloud computing and its benefits for small business owners.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question