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Showing posts with the label HARDWARE COMPONENTS

CHIPSETS OF COMPUTERS.

A CHIPSET IS A COLLECTION OF CHIP OR CIRCUITS THAT PERFORM INTERFACE AND PERIPHERAL FUNCTION FOR THE PROCESSOR.THIS COLLECTION OF CHIPS IS USUALLY THE CIRCUITS THAT PROVIDES INTERFACES FOR MEMORY EXPANSION CARDS AND ONBOARD PERIPHERALS AND GENERALLY DICTATES HOW A MOTHERBOARD WILL COMMUNICATE WITH THE INSTALLED PERIPHERALS. CHIPSET ARE USUALLY GIVEN A NAME AND MODEL NUMBER BY THE ORIGINAL MANUFACTURER AND MODEL ALSO TELL YOU THAT YOUR PARTICULAR CHIPSET HAVE A CERTAIN SET OF FEATURES EG TYPE OF RAM SUPPORTED TYPE AND BRAND OF ONBOARD AND SO ON.
CHIPSETS CAN BE MADE UP ONE OR MORE INTEGRATED CIRCUIT CHIPS.INTEL BASED MOTHER BOARDS TYPICALLY USE TWO CHIPS.THE FUNCTION OF CHIPSETS CAN BE DIVIDED INTO TWO MAJOR FUNCTIONAL GROUPS CALLED NORTH BRIDGE AND SOUTH BRIDGE.
NOW I AM GOING TO SHOW YOU SOME OF THE BASIC CHIPSET IN COMPUTERS AND WIDELY USED CHIPSETS USED IN MODERN COMPUTERS .THEIR NAMES AS 1) NORTH BRIDGE 2) SOUTH BRIDGE
SO LET US BEGIN IN OUR LITTLE JOURNEY.
NORTH BRIDGE
THE NORTH …

ARITHMETIC CALCULATION IN COMPUTERS

ARITHMETIC OPERATION AND CONVERSION DONE BY COMPUTER
As we have seen in previous post that arithmetic computation is an important thing in calculation, if a person doesn’t know arithmetic computations,he will be doomed to be in trouble during calculations that happensin everyday life.So it is necessary to learn arithmetic computation.So in this post I am going to take one step further.I am going to write about octal and hexadecimal numbers.
Now let us discuss some arithmetic conversion.Let us see what is octal and hexadecimal numbers used by digital computer.
The conversion from and to binary, octal and hexadecimal plays an important part in digital computers.Since 23 = 8 and 24 = 16 each octal digit corresponds to three binary digits and each four binary digit corresponds to one hexadecimal digit.
The conversion of from binary to octal is easily accomplished by partitioning the binary into group of three digit each, starting from binary point and preceding to the left or to the right…

MONITORS: A COMPUTER PART

Folks today i am going to say something about an output device called monitor.As maximum people know about monitors so i am going to write few things about monitor much of the information you know but i am going to say some few words hence please be with me.
Monitor is a primary output device.It displays all current process application and data i.e. Running inside a computer system.A standard monitor uses an analog vga interface, which plugs into a tp15 vga connector to a mother board.There are two types of monitor technology available to the market.
CATHODE RAY TUBE (CRT MONITOR)
This monitor is fading in popularity but still in widespread use with older computer systems.It is analog standard monitor a crt uses a picture tube that was used in older tube based tv sets.
The narrow end of the picture tube contains an electron gun it emits 3 electron beams one each for red, green and blue light.The front end of the picture tube is coated with phosphorous.When the elecron hit the phosphorou…

PROCESSOR AND HYPER THREADING A SHORT SUMMARY

PROCESSOR AND HYPERTHREADING
Friends in the last post i tried to say something about computer science and mathematics relationship.Now i am going to say something about processor and hyperthreading.So let’s get started.
The Physical Component By Which A Computer Is Mde Which We Can See, Touch And Feel Is Called Computer Hardware Example Ram, Motherboard. ·INPUT DEVICE: These hardware are used to input any data, instruction on command insidea computer device.example keyboard mo9use scanner microphone, webcam etc ·OUTPUT DEVICE:these hardware are used to get any output from a computer system.example: monitor, printer, speaker. ·CENTRAL PROCESSIG UNIT (CPU): This Device Proceses All Instruction Given By A User, And It Also Other Haqrdwqaar Peripherals Example:Microprocessor ·MOTHERBOARD: It is the main electric circuit board which is made by a pcb(printed circuit board).It hods all hardware components and provide interface to those component by which they can communicate with each other. ·MEM…

IS DIGITAL COMPUTERS ARE VALUABLE?

DIGITAL COMPUTERS
Today computers are used extensively in every day life.  It is used in basic as well as industrial, scientific and commercial purposes.  Our space program would not have been well developed without the real time monitoring of the machine of the spacecraft which was going to land on moon or any other planet of the scheduled program or launching of satellites on the orbit of earth. This is the scientific purpose i told you about while it has commercial purposes.  Like automatic data processing which the business enterprise uses.
It has many works in educational purposes for example multiple choice question answers can be checked without any error and then the results can be printed out automatically with the help of the printer which is connected to the digital computer.
  Digital computer are also used in air traffic control to control the aviation industry to help them control the planes by sending them data about the distance between the planes and the ground as well a…

LOGIC OF COMPUTERS

LOGIC OF COMPUTER IN PAPER AS WELL AS PRACTICAL USE



We always use logic in every day matters, so do the machines.But we were taught by experiences we count and the people we trust and these things matters most because it will help in dark times.But to make the machine understand the logic is very hefty work. But this is certainly not impossible.In order to understand logic we use integrated circuits.But to do this we need to design the integrated circuits on paper.This requires certain rules of algebra.This I am going talk about the rule of an algebra called the duality principal.
It states that every algebraic expression deducible from the postulates of Boolean algebra remains valid if the operators and identity elements are interchanged.In a two value Boolean algebra, the identity elements and the elements of the set B are same 1 and 0.The duality principal has many applications.If the dual of an algebraic expression is desired, we simply interchange OR and AND operators and replace…

RANDOM ACCESS MEMORY

ALL ABOUT RAM

RAM (random access memory) is a place in computing device where the operating system, application programs and data in current uses are kept .So they can be quickly reached by the device processor. Ram is much faster to read from and write to than other kinds of storage in a computer, such as hard disk drive (hdd) solid turned off.Ram loses its data when the computer is turned on again,the operating system and other files once again loaded into ram again.
Types of ram Ram can be classified into two types 1.Static ram 2.Dynamic ram
Static ram Static ram is a random access memory (ram) that retain its memory as long as power is being supplied or any new new input enters.Unlike dynamic ram, which stores bits in cellsconsisting of a capacitor and a transistor is in a latch circuit (flip flop).Sram does not have to periodically refreshed.Static ram provides faster access to data and is more expensive than dram.Sram is used for a computers cachememory and as part of the ram digit…

THEORITICAL ALGEBRA IN COMPUTERS

ALGEBRA IN COMPUTERS

Algebra is a subject in which the problem of the sum is solved with the help of letters (I mean the letters of English language as well as Greek language).  It is mostly used by the mathematicians, engineers, scientist as well as businessmen to solve any problem of the world.  Algebra is very important in many science as well as commerce studies.  So we are going to dig deep in algebra used in computers. We will consider Boolean algebra as it is used by the computers to solve real life problems.  So let us begin.
Boolean algebra, like any othermathematical system , may be with a set of elements , a set of operators and a number of unproved axioms or postulates.    A set of elements is any collection of objects having a common property.  If S is a set and x is an element of that set the x€ S denotes that x is an element of that set.   A set with de-numberable (means a small number) number of elements is specified by braces:  A={1, 2, 3, 4} that is the element of set ar…

HARDWARE COMPONENTS OF COMPUTER A LITTLE SUMMARY

HARDWARE COMPONENTS- INPUT AND OUTPUT COMPONENTS In this topic we discuss the major hardware components of a microcomputer system, which are used for input, output, processing, storage, electrical supply and communication.
Most input and output devices are outside the computer case.Most processing and storage components are contained inside the case.The most important component in the case is the central processing unit (CPU) is called the processor and microprocessor.
As its name implies, the device is central to all processing done by the computer.Data received by input devices is read by the cpu , and output from the cpu is written to output devices.The cpu writes data and instruction in storage devices and performs calculation and other data processing.
Whether inside or outside the case and regardless of the function the device performs,each hardware input, output, or storage device require these elements to operate:
A method for the CPU to communicate with the device
·The device send…