You have found the "BEST" Term Paper site on the Planet!

We GUARANTEE that you’ll find an EXEMPLARY College Level Term Paper, Essay, Book Report or Research Paper in seconds or we will write a BRAND NEW paper for you in just a FEW HOURS!!!

150,000+ Papers

Find more results for this search now!

Please enter a keyword or topic phrase to perform a search.
Need a Brand New Custom Essay Now?  click here

CPU Internal Organisations

Uploaded by Admin on Jan 22, 1999

The input/output (I/O) interface, bus structures, microprocessor, memories and peripherals (also known as external or I/O devices) are the major components of a computer system. These components constantly trade information and instructions to complete assigned operations. With the exception of the peripherals, the ongoing communication between components is conducted within the system through interconnections or paths called buses. Peripherals such as keyboards, add-in cards (including frame grabbers), monitors, modems and printers are alternatively connected to the system through the I/O interface. The I/O connection features a communication line to send and receive data between the system and peripherals. Figure 1 illustrates the standard microprocessor-based PC architecture outlined above. Note: the peripherals' link to the system through the I/O interface rather than directly through the system's host bus. The primary purpose of a system's host bus is to connect components and allow them to communicate. To achieve this, the host bus is composed of three types of communication lines. An address bus is a one-way path that allows the microprocessor to specify which of the various locations in the memories and in the I/O interface it is accessing. Using this path, the microprocessor can select a memory address from which to acquire or in which to store data. The CPU also queries the I/O interface and devices using the address bus to specify input and output locations. A data bus carries the actual data between the microprocessor, memories and the I/O interface. Because the data bus is bidirectional, information can be both sent and received on these lines. A control bus handles the arbitration and differentiation between data coming in and data going out of different components by transmitting read, write and other control signals. In evaluating bus architecture, our primary concern is with transfers occurring on the data bus. The data bus is responsible for moving the bulk of information that travels through a system. And the data bus design ultimately determines how efficiently that data will flow. Defining features of the data bus include the size or bandwidth of the bus, the speed of the bus, and the location of the bus within the system. It helps to think of the data bus as a gateway through which a certain amount of information can pass. The bus contains a clock that indicates the speed at which data can move through the gateway. The path size or width of the bus indicates the...

Sign In Now to Read Entire Essay

Not a Member?   Create Your FREE Account »

Comments / Reviews

read full paper >>

Already a Member?   Login Now >

This paper and THOUSANDS of
other papers are FREE at PlanetPapers.

Uploaded by:   Admin

Date:   01/22/1999

Category:   Technology

Length:   2 pages (458 words)

Views:   1529

Report this Paper Save Paper
Professionally written papers on this topic:

CPU Internal Organisations

View more professionally written papers on this topic »