SDRAM PC100
Until recently, the development of new technologies for manufacturing memory components took place in parallel with the development of chipsets manufactured by Intel. But it so happened that in 1998…

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Z-tracks
In devices with a moving coil there are no pre-fixed positions. Instead, they use a special guidance system (positioning), which accurately brings the heads to the desired track. The system…

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What is worse than the "golden" wheels?
The prerequisites for the fact that the “golden” discs are worse than the “aluminum” ones are laid down in the recording technology itself. Standards for compact discs provide that the…

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What is worse than the “golden” wheels?

The prerequisites for the fact that the “golden” discs are worse than the “aluminum” ones are laid down in the recording technology itself. Standards for compact discs provide that the reflection of the laser beam from bright areas should be at least 70%.

Such requirements are met for stamped discs. However, recordable discs, unlike stamped discs, have an additional recording layer of organic polymer. This layer has limited transparency. Therefore, standards for recordable discs allow that reflection from highlights should be at least 65%. Continue reading

SPD EEPROM: Functioning Algorithm

With the advent of the new SDRAM standard, a new I2C interface has also appeared. The interface was developed by Philips and is used as an internal auxiliary bus of the motherboard for exchanging information with non-volatile memory SPD-EEPROM (installed on the PCB SDRAM), which is responsible for identifying the components installed on the module. The bus is characterized by extreme ease of implementation – 2 signal lines, the transmission or reception of information on which is carried out programmatically. Continue reading

Are "stamped" discs really so perfect?
"Stamped" discs (or, if you want, "aluminum") can be made in various ways. The most common is, to be precise, injection molding, rather than stamping. Modern technologies make it possible…

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IDE Interface Features
The main requirement of the recording device to the interface is the ability to continuously transmit data to it during the recording process. Requirements for the speed of receipt of…

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The thickness of the magnetic layer of the disk
Removable magnetic media, manufactured by Iomega for Bernoulli drives, were extremely durable and reliable and cost quite a bit. The special 3-inch disks used in Zip are very similar to…

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How to recover information
Since when a file is deleted, it is not physically destroyed from the disk, it can be restored. As well as recovering all files in the case of, for example,…

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