What is bad sector? Bad sector is a place where disk can not save data. There are two types of bad sectors. One is soft bad sector caused by disk format and it could be repaired via format the disk again. However, disk format will erase all data inside the disk.
Kolpbattery.atwebpages.com› ▫ Renee Undeleter Com Serial Ports. Renee Undeleter Serial Key brokifswap - Wix.com. The majority of present-day pcs have slots to accommodate or contrast perfectly employing your photo.
The other one is hard bad sector known as physical damage, which means these sectors can not save any data. If there are lots of bad sectors in the disk, the disk will fail sooner or later. So we should use the USB hard disk with care and do not move them at will or even shake it.
Every computer is built with tons of different ports that perform various functions. Two of the most important types for data trans are serial ports and parallel ports. This article will explain to you the differences and similarities between the two types of port. Serial Ports Serial ports are generally built into the mother board, which is why the connectors behind the casing that are connected to the mother board by a wire cable can be used to connect an exterior element.
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Serial connectors generally have 9 or 25 pins and resemble the following (DB9 and DB25 connectors respectively): A personal computer generally has between one and four serial ports. Parallel Ports Parallel data transmission involves sending data simultaneously on several channels (wires). The parallel ports on personal computers can be used to send 8 bits (one octet) simultaneously via 8 wires: The first two-way parallel ports allowed for speeds of 2.4Mb/s. Enhanced parallel ports have been developed however to achieve higher speeds — the EPP ( Enhanced Parallel Port) achieves speeds of 8 to 16 Mbps, and the ECP ( Enhanced Capabilities Port), developed by Hewlett Packard and Microsoft has the same characteristics as the EPP, with a Plug and Play feature, allowing the computer to recognise the connected peripherals.
Parallel ports, like serial ports, are built into the mother board. DB25 connectors allow for connection to an exterior element (e.g. A printer): Image: © Signs and Symbols - Shutterstock.com.