Physical parts of computer come under the category of computer hardware. It can be changed once in a while in comparison with computer software. Normal users don’t see most computer hardware because it is enclosed as embedded systems. The term computer hardware is generally used for personal computers.
Internal computer hardware consists of motherboard having central processing unit and random access memory. Random access memory provides temporary storage of data where as CPU is used for doing all type of calculations. Second major component of computer hardware is Bus that is used to make common connection between several circuits. People can choose any type of buses as per their needs. Generally these are PCI bus, PCI-E or AGP bus, ISA bus that is outdated and UCB that is commonly used.
Computer can’t be run without power supply that is case including transformer, voltage control and fan. Computer hardware includes storage controllers that are helpful in controlling the hard disk, floppy disk, CD-ROM and other drives. These can be assembled on the motherboard or expansion card directly.
Video display controller is used to generate output for the computer display. Computer bus controllers are also come under computer hardware. These are used to connect computer to external peripheral devices like printers and scanners.
Sometimes computer hardware includes some removable media writers such as CD, CD-ROM Drive, CD Writer, DVD, DVD-ROM Drive, DVD writer, DVD-RAM Drive, Floppy disk and Zip drive. These are not permanently fixed in the computers and whenever you want you can remove them easily.
Tape drive, Internal storage and hard disk of the computer offers different levels of data storage like tape drive offers backup or long-term storage, Internal storage keeps the data safe inside the computer for later use while the hard disk offers medium-term … Read the rest