the system’s control and calculation operations. The description of a PC system normally specifies the processor type and its speed.

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Our tips and hints …

... on the LGA-775 processor socket

A few systems are using a new Intel CPU.

The new LGA-775processor socket is technically configured so that the contact between the socket (pins) and the CPU (contact points) can be made with adjacent contact pins.

Caution! Conventional 478pin processors may not be used. If the current processor is to be changed to a 775pin processor, this must be done very carefully, if possible by technically qualified personnel.

2.3 The working memory

For the internal exchange of data, the PC requires somewhere to temporarily store information. This is done in the working memory, also called the main memory. The working memory can be accessed very quickly and at any time. However, its content is lost when the power is turned off.

2.4 Slots

The slots for expansion cards are located on the motherboard. There are the following slots:

for modems

AMR (Audio Modem Riser)

CNR (Communication Network Riser)

for graphics cards

AGP (Accelerated Graphics Port) In the near future these slots will be replaced by

PCI (Peripheral Component Interconnect) Express X16

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