d. Hard Disk:- A hard disk is a storage media where we keep all our data files and programm files. It is fixed inside the CPU casing, so we have to open the casing in order to see it.Here too, the capacity of the hard disk that we want depends upon the size of software we are going to use. Basically people prefer a hard disk of 160 GB(gigabytes) or above.If your hard disk is full- you can remove(delete) the files from it or add another hard disk. Now a days SATA,cabling technologies replacing PAFT technology.SATA and PATA refer to the type of cable/jack used to connect the hard drive to the motherboard.To put it bluntly PATA hdds are ancient.SATA has fewer connecting wires then PATA. Pata had a max of 133 MB/s and SATA has a max of3GB/s. PATA is a pain to install to.If you got a motherboard during 2007 or after it is SATA for sure. If you got before then there is a chance it could be PATA. You can find out by looking at the connector.PATA has 40 connectors.SATA is much thinner.
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