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Showing posts from February, 2020

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…

QUALITY OF IMAGES IN DIGITAL AGE

COLOUR AND LIGHTNESS QUALITIES OF DIGITAL IMAGES
Friends  in this post i am going to talk about the colors used in digital images or the images we get from digital machines.  
So let us start
The following terminology is helpful to know when learning about the types of digital images.
TONAL RANGE – It is also called dynamic range.  This term refers  to dark to light ranges or values in an image usually refered to as shadows midtones and highlights.  An image that contains all or most of the possible tones, rather than a smaller portion of the possible tones, Usually appeared  more details and said to have larger tonal range or dynamic range.   Tones may also reffered to as levels or intensities.
BRIGHTNESS LIGHTNESS LUMINOSITY LUMINANCE   -These terms refer to dark to light tonal characteristics, as opposed to color characteristics.  They can be thought of as describing the image as if the colors had been converted to blacks grays and whites
Hue – it is identified by the name of the color s…

MOTHERBOARD AND ITS FORMS

MOTHERBOARD AND ITS FORMS The largest and most important circuit board in the computer is the motherboard.This is also called as the main board or the system board.The motherboard contains a socket to hold the CPU; the cpu is the component which most processing takes place.

The motherboard is the most complicated piece of equipment inside the case because all devices must be communicates with the CPU installed on the motherboard.All devices in a computer are either installed directly on motherboard or indirectly linked it to by expansion cards.A device i.e. not installed in the motherboard is called a peripheral device.
Now we will discuss something about form factors of motherboard.
Form factor refers to the size and layout of motherboards.As we think not all motherboards are alike.In fact there is a significant difference in the capabilities and size of different motherboard form factors such as Mini –ITX and ATX.This topic covers motherboard size and format.
There are many differen…

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…

GENERAL FEATURES OF WINDOWS 7

GENERAL FEATURES OF WINDOWS 7
Every living being has some common general features that distinguish them among other living beings.Features mean properties that uniquely identifythem from others.This applies to living as well as non living things on earth.I am going to show few of them.
So let’s begin. We are going to discuss about some features ofWindows 7
·The New TaskBar – The taskbar is located at the bottom of the windows desktop.By default when an application opens You will see its icon appear in the Taskbar.However, when the application is closed, the icon goes away.For commonly accessed application, users can place a permanent icon on either the Taskbar or in the Start menu.This is referred as “pinning”.To pin a program to the task bar, once the application is open, right click its icon and select pin thisprogram on a taskbar.If you want to rearrange the location at the taskbar just drag the item to the desired location.To pin a program to windows start menu click the orb and then …

FORMATS OF FILESYSTEM IN COMPUTER TECHNOLOGY

FILE SYSTEM AND FORMATING
In this post i am going to teach you about various types of file system and formating used in computers. So lets start.
The file system dictates how information is organized on the disk.For example, the file system determines hjow large the allocation unit, or storage unit, the file is.
The following sections introduce the different file systems available and the os’ s that support them.
The FAT FILE SYSTEM– the file allocation table (fat) file system has been the most popular file system up until the last few years.The file system is designed for the small disk and simple folder structures.
it resides in the beginning of the system. It keeps two copies of the data in its table as back up so that if any copies become corrupted it can cure that corruption.
The file allocation table along with the root folder should be kept on fixed position so that boot files can be perfectly located.The file allocation table (fat) file system has been the most popular file system …

WINDOWS 8.1 MOBILITY AND SECURITY IMPROVEMENTS

WINDOWS 8.1 MOBILITY AND SECURITY IMPROVEMENTS
Friends i am going to say something about improvements and security improvements of windows 8.1 over windows 8.So let’s get started.
So let’s get started with mobility improvements
Mobility improvements
Virtual private network:a number of vpn clients and the microsoft vpn clients are supported by the windows 8.1.So let’s understand what vpn is. vpn is a technology to or to say a type of connection method to provide security and privacy to the user of private as well as public networks.Many organization as well as user want their data should be protected and this is when vpn provides.
Mobile broadband: the embedded wireless radio is supported by the windows 8.1which helps to improve power efficiency and reduces the size of some devices.
Broadband tethering:windows 8.1 devices can be changed into wifi hotspot.
Auto triggered virtual private network: when an application requires the company intranet access, windows 8.1 can also trigger a vpn conn…

BIOS AND ITS LITTLE COMPONENTS

DETAILED ARTICLE ON BIOS AND ITS COMPONENTS
Today i am going to discuss something about bios( basic input output system).  So lets get started.

A computers basic input output system (bios) is a embedded software on a motherboard.  It is the first software a pc loads to use components such as cd drives, mouse keyboard practically the moment you turn it on.
The bios is responsible for controlling or managing low-level but extremely important process like  the power on self test.  It is the boot process and the interaction of components on the motherboard.
  the topic will help you to flash (update) you bios by taking right precautions and have a walk through each step.  Not all computers have the same bios manufacturer, let alone the same exact process,  but they all share steps and precautions.
UPGRADING THE SYSTEM BIOS
When the system was designed, the bios program code will work with all specific devices.  As the computer technology changes we need to update its capabilities .  Generally t…