COMPUTERS

Various types of optical drives are available in the market. These include CD readers, CD writers, DVD readers, DVD writers, DVD combos, BD readers, BD writers and BD combos. The specifications of an Optical Drive drives to be considered are: Supported Media Types: The optical drive must support a major part of available types of discs in the market. Examples are CD-ROM , DVD-R , DVD-ROM , CD-RW , CD-R , DVD-RAM , DVD-RW , DVD+R an d DVD+RW. Note that CD drives do not support DVD's or BD's and DVD drives do not support BD's. Also, the supported media types are different for a drive's read and write capabilities. Interface : The interface that an optical drive uses and the port that it will use to connect to the system. The interfaces have transfer speeds of their own. For example, a max. of 167 MBps for IDE, 600 MBps for SATA. But, the current technologies available for optical drives can only provide speeds that are lower than modern systems. So in case, bo

Motherboard: ports and sockets

This image shows only those interfaces (ports and sockets) that are important to our interest and point of view. The rest of the small semiconductor parts of the motherboard are not of our interest, but for their designer. In this post, only the names of all the interfaces have been mentioned. Other than these interfaces, there are numerous chips and IC's for various functions as well. They along with the functions of these interfaces would be described sometime later. The components are so named: A,B : PCI connector C : CMOS battery D : PCI-E (x1) connector E : PCI-E (x16) connector F : S/PDIF connector G : Back-panel for I/O devices H : 12V processor power (4-pin) I : Rear chassis fan header (3-pin) J : Processor socket K : Processor fan header (4-pin) L,M : RAM (channel A,B) sockets N : Chassis intrusion header O : Serial port header P : Floppy Drive connector Q : Main power connector (24-pin) R : Parallel ATA (IDE) connector S : Serial ATA (SATA) connectors T : Front panel head

How to choose the right cabinet for your desktop?

The first and foremost important thing to consider before looking for a desktop case is that you know the form factor of your motherboard. If you know it, very well. However, if you don't know it, you should refer to the specifications of your motherboard or check it online. It is usually of the form ATX or micro ATX or BTX or micro BTX. This is important because the form factor decides the shape and size of the motherboard and we would obviously like to buy a cabinet, that can house our motherboard. Secondly, it is a must that you buy a cabinet that has ample space inside. In simple words, buy a large cabinet. It promotes air flow and will keep your system cool. Thirdly, the case should not conduct electricity. Ensure that the case is not metallic and that each and every screw-hold for the components has rubber or plastic insides. This will help in preventing your system components from getting an electric shock. Fourthly, there must be ample additional cooling fan at

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