Digital Device

How to avoid network downtime?
Since then, no surprises have occurred with Novell products to solve the high availability of network resources. Naturally, Novell ceased to support its once-very popular NetWare 3.x product, since over…

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Transistor Evolution and Processor Revolution
The microprocessor manufacturing process is inextricably linked with the evolution and continuous improvement of the transistor. The transistor, invented in 1948 in the laboratories of Bell Corporation, made it possible…

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Custom solutions for local networks of small offices
From the school bench, we are all familiar with some of the laws of nature, which are therefore called the laws that cannot be violated. However, in addition to laws,…

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“Think for yourself, decide for yourself …”

Until now, we have considered solutions that save money when organizing the LAN of a small office due to some compromises with standards. There is another way of organizing the office cable system, not designed to save money by the methods discussed above, but rather, assuming some of their redundancy at the initial stage, but giving savings later. Continue reading

Comparison of motherboards supporting the new memory standard PC2100 (DDR266)

AMD processors have long gained popularity among computer users due to their high performance at low cost. Therefore, it is understandable that new motherboards for AMD processors will appear on the market with support for the 133 MHz system bus frequency (the equivalent frequency is 266 MHz) and with DDR SDRAM PC2100 memory support. So far, only the AMD-760 chipset provides this capability. Continue reading

“Divide and rule”

As a horizontal cable in modern SCS, a four-pair balanced cable is used mainly. It is known that for signal transmission in Ethernet and Fast Ethernet networks, only two out of four pairs are used. The remaining pairs are virtually idle. The technical characteristics of modern cables in terms of the NEXT parameter are very high (see Fig. 1), which allows the use of free pairs for transmitting analog and digital signals without any noticeable effect on the operation of the main application. Continue reading

We get rid of “unnecessary” equipment

The cable system of small offices, as a rule, has only a horizontal subsystem SCS, since the office itself is usually located on one floor. Standards provide for the horizontal subsystem SCS the presence of floor cross. Horizontal cables diverge from floor crossings to workplace outlets. Recently, in almost all newly installed office networks, Fast Ethernet 100Base TX technology has been used, which places high demands on the parameters of the cable system. Continue reading

Custom solutions for local networks of small offices
From the school bench, we are all familiar with some of the laws of nature, which are therefore called the laws that cannot be violated. However, in addition to laws,…

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Athlon XP: not by number, but by reduction!
When this issue of the magazine was being prepared for publication, a remarkable event occurred: the next Microprocessor Forum. Probably, when you read this article, you already know that AMD…

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"Divide and rule"
As a horizontal cable in modern SCS, a four-pair balanced cable is used mainly. It is known that for signal transmission in Ethernet and Fast Ethernet networks, only two out…

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New from Japan
The article was written by a former employee of the EPOS company Sergey Tkachenko. Currently, Sergey is studying and working in Japan, he is a graduate student at Chubu Daigaku…

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