3.1+Hardware+-+Types+of+Computer

=3.1 HARDWARE - Types of Computer=


 * ====**Types of computer**==== || ====**Description**==== || ====**Image**==== ||
 * ==== Analog Computers: ==== || ==== An analog computer is a device that performs computations using continuous physical variables which are analogs of the actual items being computed. Analog computers might, for example, use the continuous rotation of gears or the angular movements of mechanical or electromechanical parts to perform computations. ====

|| ======== ||
 * ==== Hybrid Computers: ==== || ==== These computers are a combination of both digital and analog computers. In this type of computers, the digital segments perform process control by conversion of analog signals to digital ones. ==== || ====[[image:http://www.trendygadget.com/wp-content/uploads/2009/08/nw2k-tablet.jpg width="264" height="94"]]==== ||

Mainframe Computer:
|| ==== arge organizations use mainframes for highly critical applications such as bulk data processing and ERP. Most of the mainframe computers have the capacities to host multiple operating systems and operate as a number of virtual machines and can thus substitute for several small servers. ==== || || Microcomputers: || A computer designed for desktop use; usually comprises, at a minimum, a central processing unit (CPU), a monitor, and a keyboard as separate units, connected by special cables. || ||
 * Smartphones || A **smartphone** is a mobile phone that offers more advanced computing ability and connectivity than a contemporary basic "feature phone".Smartphones and feature phones may be thought of as handheld computers integrated within a mobile telephone. || [[image:http://img.cellular-news.com/story/29526/Two_new_Windows_Mobile_Smartphones_from_imate_2.jpg width="320" height="240"]] ||
 * **Desktops computer (PCs)**
 * ==Laptop Computer== ||  || [[image:http://www.igcseict.info/theory/1/types/files/stacks_image_6109_1.png width="224" height="90" caption="stacks_image_33780BD2-41A0-4774-89A9-CCFF7884DA6F"]] ||
 * **Personal Digital Assistants (PDAs):** || Similar in operation to desktops, laptop computers are miniaturized and optimized for mobile use. Laptops run on a single battery or an external adapter that charges the computer batteries. They are enabled with an inbuilt keyboard, touch pad acting as a mouse and a liquid crystal display. || [[image:http://www.igcseict.info/theory/1/types/files/stacks_image_6137_1.png width="122" height="272" caption="stacks_image_8EAFEAF9-F6A3-44C6-A6A5-997957E450C8"]] ||
 * **Minicomputers:** || computer with processing and storage capabilities smaller than those of a mainframe but larger than those of a microcomputer, used by small businesses, in manufacturing processes, in scientific research, etc. || [[image:http://t0.gstatic.com/images?q=tbn:ANd9GcRYZaihVy_syuJvRUqRi28aNpgeSM_eeOgJiK7gNYYYY2U2B5U&t=1&usg=__R31GKH2a-pUVMHpMCRZXxrsEDDA= width="122" height="99"]] ||
 * **Supercomputers:** || The highly calculation-intensive tasks can be effectively performed by means of supercomputers. Quantum physics, mechanics, weather forecasting, molecular theory are best studied by means of supercomputers. Their ability of parallel processing and their well-designed memory hierarchy give the supercomputers, large transaction processing powers. || [[image:http://philip9876.files.wordpress.com/2007/11/supercomputer.jpeg width="309" height="136"]] ||

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Podcast: Types of Computers
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