A microprocessor (MP) is basically a computer processor which is made into the design and function of a microchip. Occasionally known as a logic chip, the microprocessor is the thing that sends the command to boot (start) your computer. As a part of booting the computer, the microprocessor starts up all the components which are needed in order for the computer to function, such as starting the operating system (in most cases, Microsoft Windows).

The function of a microprocessor is to generate and reply to mathematical and logical operations. This function of the microprocessor is enabled by the use of registers. These registers contain the data necessary for the MP to carry out the operations such as addition or subtraction. Due to the way the registers have been configured, they enable the MP to carry out tasks such as the comparison of a couple of numbers, and recollecting numbers from different areas and dispersing them.

The main feature of the design of the MP is a series of logical instructions that monitor the order in which tasks are received and executed. The existence of the instructions enables the tasks to be carried out in a sequence which will flow from the ending of a particular task and the starting of the next task, in this sequence. e.g. when we start our computer, the first thing that the MP does is activate something called the BIOS (Basic Input / Output System). From here onwards, the BIOS starts up the operating system, and carries out the next task in starting the computer.

Most of the time, microprocessors don't get damaged and don't need replacement, unlike other parts of the computer. However, there is a possibility that the functionality of the chip can be damaged. In the event of this happening, it's fairly easy for a computer technician to replace it with a fully functioning logic chip.

When you want to buy a processor, make sure you buy either Intel or AMD. Of course, most people still prefer Intel as it can be considered as a household name. However, computer enthusiasts who have a better knowledge of processors than the common person are starting to switch to AMD, thereby meaning that AMD is starting to eat into Intel's market share. The offering of different lines, 1 line for users who are restricted by a budget (Sempron and Sempron 64), 1 line for the mainstream users (Athlon 64), 1 for the high-end user (Athlon 64 FX) and the last one for hardcore gamers (Athlon 64 X2).

Summery: This article describes the functionality of computer processors generally known as 'Microprocessors' and gives some useful tips on choosing a microprocessor based on your computer usage.