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Inside the computer

Whats inside the computer?

Following picture shows a view of the inner organs of a computer.



Inside the computer
Insde a typical computer


Power Supply:

Power supply
Power supply
A power supply or SMPS (Switched Mode Power Supply) converts AC signal to low voltage regulated DC signal for the use of components inside the computer. Most modern desktop computer power supplies are ATX power supplies, which always provides a 5 V voltage although it is connected to the mains supply. ATX power supply can be turned ON and OFF by a signal from the computer.


Processor:




Processor Fan. The actual processor is below this fan
Processor


     A processor is a multipurpose, programmable device that takes data from the user, processes it according to the instructions stored in its memory, and gives the result of the processing as output. In the earlier days of computer history, processors were constructed in small and medium scale IC forms, consisting of tens to few hundred transistors. Such processors were too much limited in their operations, and power consumption was also high. The first processors appeared in early 1970s, which were used for digital calculators, terminals, printers and other simple type of automatic systems.
intel 4004 processor
intel 4004 processor

     The first commercial processor was intel 4004, whose price was $60. It was originally designed by intel for desktop calculators for a Japanese calculator company, with high performance and rich features. It was a 4-bit processor, with a clock speed of 740 kHz. Since the intel 4004, the history of processors has undergone a vast improvement in size, performance, quality, power consumption, etc. and today we have intel i7 the most advanced processor up to date.


Modern Processor



Hard disk:


Hard disk
Hard Disk
A hard disk drive is a data storage device for a computer. It is used for storing the digital information processed by the computer for later use. A hard disk usually consists of rapidly rotating disks (or "plates") which are coated with magnetic material so that data can be stored in digital form. The magnetic storage of digital data is not deleted even when the power to the disk is cut off because data is stored as "magnetic cells" on the surface of the disk plates.




A simple hard disk
A simple hard disk





Exploded view of a hard disk
Exploded view of a hard disk





PCI Slots:

PCI Slots
PCI Slots


PCI (Peripheral Components Interconnect) are the slots on a motherboard where extra components in a computer can be inserted. It is a type of bus; the terminal where other components are inserted.
If, for example, you want to insert a TV card (a device that allows to watch TV on your PC), which does not usually come with your computer, you can insert it in the PCI bus and watch TV. Modems and NICs (Network Interface Card) are other devices that are usually inserted in a PCI slot.


1 Response to Inside the computer

August 17, 2015 at 6:45 PM

Very nice and helpful information has been given in this article. I like the way you explain the things. Keep posting. Thanks..
Gaming monitor

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