by Dinesh Thakur Category: Introduction to Computer

Personal Computer Definition: The first general-purpose, cost-effective personal computer created by IBM was called the IBM PC or means "personal computer" . It is a microprocessor technology that has been any small, relatively inexpensive computer designed to be used by one person, at home or in an office. It is often simply called a Personal Computer (PC).  The example of Personal Computer or PC are microcomputer, desktop computer, laptop computer, tablet. In all these computer manufacturers to put an entire CPU on one chip.



 
by Dinesh Thakur Category: Introduction to Computer

The successful general purpose mechanical computers were developed. In 1930, mechanical calculations were built for automatic addition, subtraction, multiplication & division. A calculator is not a programmable device. The different eras of the Evolution of Digital Computers are listed below:

 
by Dinesh Thakur Category: Introduction to Computer

   The Industry Standard Architecture or ISA (Pronounced as separate letters or as eye-sa) bus began as part of IBM's revolutionary PC/XT and PC/AT released in 1981. However, it was officially recognized as "ISA" in 1987 when the IEEE (Institute of Electrical and Electronics Engineers) formally documented standards governing its 16-bit implementation. AT version of the bus is called the AT bus and became a de facto industry standard.

 
by Dinesh Thakur Category: Introduction to Computer

    The Processor Cache is memory that store data (code, commands etc.). it is used with the processor to facilitate the access of data from the system's main memory or RAM. Processor Cache reduces the average time to access memory. The processor cache typically consists of two levels, which are the L1 cache and the L2 cache.

 
by Dinesh Thakur Category: Introduction to Computer

A Laptop computer (also called portable computerornotebook computerin English) (Other terms, such as ultrabook or netbook, refer to specific types of laptop) is designed with portability in mind. It was developed in the late 1980s. It is briefcase style with a foldout screen with a clamshell form factor, suitable for mobile use and with a miniature keyboard. It is small enough to use in your lap. The laptop is battery or AC-powered personal computer that should be charged via a plug and socket, and when it runs out of power, it must be recharged regularly.    



 
by Dinesh Thakur Category: Introduction to Computer

Definition: Semiconductors are widely used in electronics to make components such as diodes, transistors, thrusters, integrated circuits as well as semiconductor lasers. A ‘semiconductor’ is a material whose properties lie between conductors and insulators. The resistance in semiconductor decreases as there is an increase in temperature because as the temperature is increased, the electrons present in the valence band get excited and jumps into the conduction band, which increases the conductance and hence, resistance decreases.



 
by Dinesh Thakur Category: Introduction to Computer

The terms Micro Channel, Micro Channel architecture, or just MCA, all refer to the same thing: a kind of expansion bus used in PCs. MCA was a distinct break from previous bus architectures such as Industry Standard Architecture. The pin connections in MCA are smaller than other bus interfaces. For this and other reasons, MCA does not support other bus architectures. Although MCA offers a number of improvements over other bus architectures, its proprietary, nonstandard aspects did not encourage other manufacturers to adopt it.

 
by Dinesh Thakur Category: Introduction to Computer

Extended Industry Standard Architecture (in practice almost always shortened to EISA and frequently pronounced "eee-suh") that extends the ISA standard to a 32-bit interface. It was developed in part as an open alternative to the proprietary "Micro Channel Architecture (MCA)" that IBM introduced in its PS/2 computers. It is a bus standard for IBM compatible computers. It was announced in late 1988 by PC clone vendors as a counter to IBM's use of its proprietary Microchannel Architecture (MCA) in its PS/2 series.



 
by Dinesh Thakur Category: Introduction to Computer

                                    NetBook

The concept of netbook is not so far from its portable design, but it is lighter and thinner, and limited storage than a laptop. Netbooks are like physical paper book; its design is just like a laptop. His name also reflects its main purpose: Net synonymous English Internet and book for "book", in short, the book for the Internet. The term netbook promoted by Intel.



 
by Dinesh Thakur Category: Introduction to Computer

          Floppy Disk

The floppy disk drive  also known asfloppy or FDD is the primary removable storage medium for a personal computer. The FDD, once called a mini disk, is the primary medium for getting voluminous information into and out of a micro computer system.  If you have two FDDs of different storage capacities, A: In DOS and Windows the identifier used for the first floppy disk drive; the second floppy disk is designated as drive B:.



 
About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.



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