by Dinesh Thakur Category: Introduction to Computer

Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality.

 
by Dinesh Thakur Category: Introduction to Computer

A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. A computer as shown in Fig.  performs basically five major computer operations or functions irrespective of their size and make. These are



 
by Dinesh Thakur Category: Introduction to Computer

What is Computer : Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin termcomputare’, this means to calculate or programmable machine. Computer can not do anything without a Program. It represents the decimal numbers through a string of binary digits. The Word 'Computer' usually refers to the Center Processor Unit plus Internal memory.



 
by Dinesh Thakur Category: Introduction to Computer

  BIOS (Basic Input/Output System) Short for ROM is boot firmware program that a computer uses to successfully start operating. The BIOS is located on a chip inside of the computer and is designed in a way that protects it from disk failure.



 
by Dinesh Thakur Category: Introduction to Computer

 DMA stands for "Direct Memory Access" and is a method of transferring data from the computer's RAM to another part of the computer without processing it using the CPU. While most data that is input or output from your computer is processed by the CPU, some data does not require processing, or can be processed by another device.



 
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

   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 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: Memory

Primary memory is also known as main memory or may also refer to "Internal memory." and primary storage. All those types of computer memories that are directly accessed by the processor using data bus are called primary memory. That allows a processor to access stores running programs and currently processed data that stored in a memory location.



 
by Dinesh Thakur Category: Memory

Secondary memory is also known as secondary storage. The secondary memory is accessed indirectly via input/output operations. This memory is also called permanent, external, stable or persistent memory. It is characterised by its slowness and cheapness, relative to the RAM, and by its permanent appearance.

 
by Dinesh Thakur Category: Memory

Memory is an essential component of the computer. It is a hardware device that assembled on the motherboard for storing data and instructions for performing a task on the system. Two types of memory are used by the computer, one for storing data permanently and second for operating.



 
by Dinesh Thakur Category: Memory

Definition: SDRAM stands for Synchronous Dynamic Random Access Memory. SDRAM operates more efficiently as it works according to the synchronization of the clock. This makes it easy to manage faster, and the speed of the SDRAM measured in MHz instead of nanoseconds. SDRAM introduced in 1969-70. It most widely used in computers. Nowadays it is also used in other systems.

 
by Dinesh Thakur Category: Memory

Definition: NVRAM stands for Non-Volatile Random Access Memory. It is a kind of RAM that can store the data even when there is no power. Ex:- Flash memory is a kind of NVRAM.

 
by Dinesh Thakur Category: Memory

Definition: EEPROM (pronounce as "E-E-PROM") stands for Electrically Erasable Programmable Read-Only Memory. It is a non-volatile ROM chip which used for storing a small amount of data in computers or some other electronic devices. Through EEPROM, an individual byte of data can erase and reprogrammed entirety, not selectively by the electrical voltage.

 
by Dinesh Thakur Category: Memory

In terms of computing’s history, we’re just beginning to scratch the surface of the lifestyle applications of touch-sensitive gadgets. In this article, we’ll take a look at two of the most important touch-based input technologies used in computers, smartphones, laptops, and tablets.



 
by Dinesh Thakur Category: Memory

Whether you’re looking to replace a failed drive or upgrading to get more capacity and faster access times, installing a hard drive is simple. Just follow these steps to insert, secure, and power a new HDD in your desktop PC.

 
by Dinesh Thakur Category: Memory

There are three types of storage that we can use for our files:HDDs, SSDs, and cloud-based storage.

In some cases, we have the option of foregoing one type in favor of another when looking for more capacity, faster load times, or dynamically shifting capacities. Read on to determine which applications are best suited to which storage types.

 
by Dinesh Thakur Category: Memory

The principle form of electronic MEMORY used in computers prior to the invention of semiconductor memory chips. It consisted of thousands of tiny rings called cores, made from a magnetic FERRITE material and each threaded onto three fine copper wires: the whole formed a two-dimensional mesh much like a knitted textile.



 
by Dinesh Thakur Category: Memory

Definition: ECC Memory stands for Error-Correcting Code Memory is a type of RAM that adds error detection and correction circuitry to automatically detect and correct single-bit memory errors in any of the chip. As the name of the memory suggests, ECC memory is a kind of memory that can identify and fix the most common data error, but it used for single-bit memory errors.

 
by Dinesh Thakur Category: Memory

Definition: EPROM (pronounced ee-prom ) stands for Erasable Programmable Read-Only Memory. EPROM is a type of ROM chip that can retain the data even if there is no power supply. The data can be erased and reprogrammed by using ultraviolet (UV) light. The UV light clears the data on the chip so that it can reprogram. For writing and erasing data on the EPROM, we need a particular device which is known as PROM programmer. The process of programming an EPROM is often called BURNING, and the box into which it is plugged to program it an EPROM burner.

 

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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.