by Dinesh Thakur Category: Introduction to Computer

Definition: Analog computer is that computer, which is use to process continuously varying data. Everything we see and hear is change continuously. This changeable continuous stream of data is called analog data. Analog computer can be used in scientific and industrial applications such as measure the electrical current, frequency and resistance of capacitor, etc.



 
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:.



 
by Dinesh Thakur Category: Introduction to Computer

The Definition and meaning of mainframe has shifted from its original reference to the main housing, or frame, that contained the central processing unit (CPU) of the computer. In those days, all computers were big-like the size of a garage and the frame for the CPU might have been as big as a walk-in closet. Now mainframe refers to the kind of large computer that runs an entire corporation.



 
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

Definition: A control unit (CU) (or controller, same thing) is a piece of hardware that manages the activities of peripherals (separate devices attached to the computer, such as monitors, hard drives, printers, etc.) Control units found on personal computers are usually contained on a single printed circuit board. The control unit acts as a sort of "go-between," executing transfers of information between the computer's memory and the peripheral. Although the CPU (central processing unit-the "big boss" in the computer) gives instructions to the controller, it is the control unit itself that performs the actual physical transfer of data.



 
by Dinesh Thakur Category: Introduction to Computer

In 1640s, Computer term was first used as "one who calculates."  From 1897, term changed and got a new computer meaning "Calculating machine". From 1945 the term indicates as "programmable digital electronic computer".



 
by Dinesh Thakur Category: Introduction to Computer

Computers internal architectural design comes in different types and sizes, but the basic structure remains same of all computer systems.

The term 'computer hardware' or 'computer parts' is used to describe computer components that can be seen and touched. The major components of general-purpose computer system are Input Unit, main/internal Memory or Storage Unit, Output Unit, Central Processing unit. The CPU is further includes Arithmetic logic unit (ALU) and control unit (CU). All the units also referred to as "The functional units”. Devices that are not integral part of CPU referred to as peripherals.



 
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

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

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.



 

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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.