How to screenshots on Mac/Windows/ android /i phone

In this blog we will be knowing about How to screenshots on Mac, Windows PC, iPhone and Android

as we know that this is not hard process for taking screenshot on  window on  mac ,iphone and android ,

once you give a try with the following details in this article ,you will be come to know

How to screenshots on Mac

so now this is time to start the process for screenshot in all kind of devices,

Screenshots are handy. you'll use them to point out your grandparent the way to use a replacement app.

 you'll use them to send an attempt of that strange error message to your company’s IT department. you'll use them to capture tweets before they disappear down the deletion region.

Each of the most operating systems — Windows, macOS, Android, and iOS — incorporates one or more ways to require screenshots. Here’s a fast and straightforward guide to taking screenshots altogether four.

How to screenshots on Mac

Current versions (Mojave and Catalina) of the macOS accompany a Screenshot app, which is accessed by pressing Shift-Command 

You’ll get a command bar that provides you various options. you'll take a screenshot of the screen, a window, or a selected selection;

 you'll also take a video of all or a part of your screen. there's an “Options” button that allows you to choose where you would like to save lots of your screenshot to,

 and you'll also set a brief delay. When you’re ready, click on the “Capture” button on the proper end of the command bar.

If you haven’t upgraded to Mojave or Catalina, you'll still save screenshots to your desktop as PNG files.

To take a screenshot of the whole screen, press Shift-Command-3.

To take a screenshot of a part of the screen, press Shift-Command-4 then drag the cursor to stipulate

 the world you would like to capture.

If you would like to capture a selected window, press Shift-Command-4. Hit the spacebar. The cursor will become a camera. Hover the cursor over the window you would like to capture so it highlights, then click thereon .

how to SCREENSHOTS ON A WINDOWS 10 PC

Depending on your specific system, you ought to be ready to take a screenshot by pressing the Windows logo key simultaneously with the PrtScrn key (which is typically on the proper end of the function key row). 

If that doesn’t work, you'll try adding the Ctrl or Fn key to the mixture. The image is going to be saved within the “Pictures” > “Screenshots” folder as a PNG file.

If that doesn’t work for you (I found that half the time i attempted it, the system refused to require the screenshot), 

a second, more reliable method is to hit Windows + Shift + S, which can mention a Windows app called “Snip & Sketch.” 

(The app is additionally accessible from your Windows app menu.) Your cursor will become a sign , and you’ll get alittle toolbar at the highest of the screen that allows you to select an oblong clip,

 a freeform clip, or simply take an attempt of the whole screen. The clip (or “snip,” as Windows calls it) 

are going to be saved to the clipboard and a thumbnail will appear within the lower right corner of your screen. Click thereon to edit the photo, reserve it (as a PNG, JPG, or GIF file), or share it.

There are variety of other ways to mention the snipping tool,

 including hitting the Windows key and beginning to type “snip” (which will mention the tool in your Start menu), or typing “snip” into the Cortana search box.

You can, if you would like , make the PrtSc key mention Snip & Sketch once you press it.

Go to your computer’s settings by selecting the beginning button within the lower left corner, then the gear icon that appears above it.

In the search box slightly below the “Windows Settings” page name, type “prtscn.” Somewhere round the “t,” the menu will show you a variety reading “Use the Print Screen key to launch screen snipping.” Choose it.

You’ll end up on the “Keyboard” page. search for “Print Screen shortcut” and toggle it on.

to know the basic concept in computer = click here 

how to take a screenshot in android 

There are two ways to require a screenshot of your Android screen (assuming you've got Android

Press and hold your power button.

You’ll get a pop-out window on the proper side of your screen with icons

 that permit you power off, restart, call an emergency number or take a screenshot. Or...

Hold down the facility button and press the volume-down button.
Either way,

 after you’ve taken the screenshot, it'll briefly appear as a smaller version then disappear,

and you’ll get a top notification that allows you to share, edit, or delete it.

Something to seem for: Some Android phones (for example, certain Samsung and Huawei phones) allow you to take “long” screenshots,

where you'll scroll the screen down and capture the whole page. Check your phone’s support pages

if you think that you would possibly have that — it are often handy.

how to SCREENSHOTS ON AN IPHONE

Taking a screenshot with an iPhone is straightforward and uncomplicated:

Press the side button and therefore the volume-up button simultaneously. (Note: if you've got an older iPhone that features a Home button, you would like to press the side button and therefore the Home button instead.)

You’ll get a thumbnail image of your screenshot within the lower left corner.

Tap on the image to form it larger; 

there'll be editing tools below. Icons within the upper right corner allow you to delete it or share it.

When you’re finished, tap “Done” within the upper left corner. you'll save the image to Photos, to Files, or delete it.

Take a screenshot of a part of your screen and reserve it to your clipboard

On your mac keyboard, hold down the subsequent keys at an equivalent time: Command + Control + Shift + 4.

You will see a cursor appear. Click and drag your cursor, to spotlight the whole area that you’d wish to take a snapshot of. Protip:

 If you would like to regulate your selection, click esc to start out over.

Navigate to where you’d wish to insert your image. (Example: email, presentation, etc.)

Once within the application where you’d wish to paste your image, hold down the subsequent , at an equivalent time: command-V

And there you've got it! Here's my screenshot pasted in Apple Keynote:

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what is data processing in computer

In this tutorial, we will know what is data processing in computer; you are concerned and looking for data processing concepts in the computer, this website welcome to know further about this topic,

we often talk about in data processing concepts which contains some of the aspects such as

data, data processing, and information

Data: what does it mean to say Data? so the answer is, any collection of raw hand figures facts,

data is as the open material of information .it may be numerical, employee number,

so on, or non- numerical like any products name, any person name and so on,

Data processing ;

as we know that data is in its raw form it can’t solve any problem, the data needs some processing,

to make it useful, data processing is the conversion of data into a more useful form,

that is, the transmission of data into meaningful information is to call data processing,

Information

the information represents that is obtained by data processing, this is to say information just because the data is processed; however, the information we collect from one data processing step; may be used as data in the next data processing step,

Data processing Cycle

data processing is to view as a system that accepts data as input, processes it into information as output.

this is to explain with the help of there are many data types, such as,

Qualitative data – qualitative data always denotes the characteristics of thing such as average, fair, etc ,

Quantitative data; it is expressed in terms of measurable qualities such as 15 kg, 30 kg, 35-degree celsius, and so on,

just keep in mind that we can measure and count,

Numerical types – numerical types is to say which contain + – */; it may be an integer without any fractionals part or real number, including integers and fractions,

Floating point representation ;

it is a type of data which consists of three component respectively

first is Mantissa, 2nd is Radix or base 3rd is Exponent

the type of data includes alphabetic data and alphanumeric data,

Steps in the data processing

data processing primarily work on some of the aspects such as

identifying the data

input of data

manipulation of data

output of data

information storage

this processing is to use as a managerial aid in decision-making for solving business problems, it is also very useful in the areas of linear programming, Pert, CPM, etc

we see computer is everywhere, not only the business organization, the other institutions

are also using a data processing system for their regular use.

we can not think about a situation without a computer, Robotics and Artificial intelligence

are the two promising ares of application,

Data processing operations

how to do the operations, the data after some processing is to transform into information,

which is to organize and give it to the meaningful, it includes the following operations

1 Data generation; data generation often involves the operation of collecting the original data

it implies that the open data are collected and set out in the form of an original document,

such kind of document, we often say a source document,

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basic knowledge in computer | basic computer learning

In this article, we will know the basic knowledge in computer, this article will help them who is a beginner and want to learn the basic knowledge in the computer,so they can Make focuses on Computer general learning while at the same time perusing which will help for a superior score in tests. We furnish you with the subtleties of PC learning that they are asking in every aggressive test. We furnished with the insights regarding the Computer ages, Memory subtleties, Software Details and Input and Output Details in Detailed Method to see more on PC information.

basic knowledge in computer

basic computer learning

computer:
 A Computer is a General reason machine, regularly comprising of advanced hardware, that acknowledges (inputs), stores, controls, and creates (yields) information as numbers, content, designs, voice, video documents, or electrical sign, as per directions called a program.

Father of the PC – Charles Babbage.

Father of the cutting edge PC – Alan Turing.

Fundamental Architecture of Computer: John Von Neumann (1947-49).

First Programmer: Lady Ada Lovelace (1880).

First Electronic Computer: ENIAC (1946) – J.P. Eckert and J.W. Mauchly.

The main PC for the home client presented – IBM in 1981.

Full type of Computer:

C – Commonly

O – Operated

M – Machine

P – Particularly

U – Used for

T – Technical

E-Education

R – Research

Attributes of Computer

Speed

Precision

Capacity

Determination

Flexibility

Mechanization

PC – An Introduction

A PC is a gadget that can get procedure and store information.

Be that as it may, all PCs share a few sections for all intents and purpose:

Information gadgets enable information and directions to the PC (Mouse, Keyboard and so forth.)

Memory for putting away directions and information.

Focal Processing Unit which controls the handling.

Screen Process the data as yield.

Sorts of PCs

PCs run in size and ability. There are supercomputers, huge PCs with a large number of chip that perform amazingly complex computations.

There are minor PCs implanted in vehicles, TVs, sound systems, adding machines, and apparatuses. These PCs are worked to play out a couple of number of assignments.

PCs

PCs configuration is made for use at a work area or table.

They are commonly bigger and more dominant than different kinds of PCs.

The principle segment, called the framework unit, is normally a rectangular case that sits on or underneath a work area.

Different segments, for example, the screen, mouse, and console, associate with the framework unit.

PCs

The Laptops are lightweight versatile PCs with a meager screen.

PCs can work on batteries, so you can take them anyplace.

In contrast to work areas, PCs consolidate the CPU, screen, and console in a solitary case.

The screen overlays down onto the console when not being used.

Handheld PCs (PDA)

Handheld PCs, otherwise called individual computerized colleagues (PDAs), are battery-control PCs little enough to convey anyplace.

These are helpful for planning arrangements, putting away locations and telephone numbers, and making recreations.

Some have propelled capacities, for example, making phone calls or getting to the Internet.

Rather than consoles, handheld PCs have contact screens that you use with your finger.

Fringe Devices

The fringe gadget associates with a PC framework to include usefulness. Models are a mouse, console, screen, printer and scanner.

A PC fringe is a gadget that associates with a PC however isn't a piece of the center PC engineering.

The center components of a PC are the focal preparing unit, control supply, motherboard and the PC case that contains those three segments.

Kinds of Peripheral Devices

There are numerous fringe gadgets, however they fall into three general classifications:

Information gadgets, for example, a mouse and a console

Yield gadgets, for example, a screen and a printer

Capacity gadgets, for example, a hard drive or glimmer drive

PC Knowledge – Main Parts of Computer

Equipment

PC equipment is the thing that you can physically contact incorporates the PC case, screen, console, and mouse.

It additionally incorporates every one of the parts inside the PC case, for example, the hard circle drive, motherboard, video card, and numerous others.

Information Devices

In registering, an info gadget is a fringe (bit of PC equipment hardware) used to give information and control sign to a data handling framework.

It will control gadgets, for example, a PC or data machine.

Models: consoles, mice, scanners, advanced cameras and joysticks.

Console

A Keyboard is the most essential information gadget for any PC framework.

It enters information on the PC.

Mouse

A mouse is utilized to enter information by sending a sign to the PC, in view of drifting the cursor and choosing with the left mouse catch.

The left mouse goes about as an 'enter' catch. The correct mouse catch can be chosen and will frequently spring up a window of decisions.

The looking over wheel is utilized to move the perspective on the screen up or down.

By moving your mouse to an area in an archive, on an advanced photograph or over a decision of music, you can tap the left mouse catch to put the cursor.

Trackballs

A trackball is an info gadget used to enter movement information into PCs or other electronic gadgets.

It fills a similar need as a mouse however is structured with a moveable ball on the top, which can be come toward any path.

Rather than moving the entire gadget, you just roll the moveable ball over the trackball unit with your hand to create movement input.

Essential Knowledge of Computer – Main Parts of Computer

Standardized identification peruser

A standardized identification peruser (or scanner tag scanner) is an electronic gadget that can peruse and yield printed standardized tags to a PC.

Like a flatbed scanner, it comprises of a light source, a focal point and a light sensor making an interpretation of optical driving forces into electrical ones.

Advanced camera

A camera which produces advanced pictures that can be put away in a PC and showed on the screen.

Gamepad

The gamepad is a handheld controller for computer games.

Joystick

The joystick is a switch that can be moved in a few ways to control the development of a picture on a PC or comparable presentation screen. It basically utilized in making recreations.

Amplifier

Smaller scale Phone is an instrument for changing over sound waves into electrical vitality varieties which may then be enhanced, transmitted, or recorded.

Scanner

The scanner is a gadget that outputs archives and changes over them into advanced information.

Webcam

A webcam is a camcorder associated with a PC, enabling its pictures to be seen by Internet clients.

Optical character acknowledgment (OCR)

Optical character acknowledgment is the mechanical or electronic transformation of pictures of composed, written by hand or printed content into machine-encoded content.

Digitizer

It changes over simple data into computerized structure.

Optical Mark Reading (OMR)

Information and Output gadgets

Information Devices – pc data

A gadget bolsters data to the pc framework for procedure.

We ar taking care of talk about the first unremarkably utilized info gadgets during this article.

Console

The PC console is to enter content data into the pc.

The primary utilization of the console is to kind directions driving the pc to perform bound activities.

Mouse

A gadget that controls the development of the pointer or pointer on a video show.

A mouse might be a little article you'll have the option to move on an extreme, level surface.

The innovation of the mouse is made by political pioneer Engelbart of Stanford inquire about office in 1963.

Joystick

Joysticks and comparable game controllers may likewise be associated with a pc as advise gadgets

Scanner

A scanner might be a gadget that photos a composed page or illustrations by digitizing it, producing an image created from little pixels of different splendor and shading esteems that ar portrayed numerically and sent to the pc.

Scanners not exclusively check illustrations, anyway they'll also output pages of content.

MIDI Devices

MIDI (Musical Instrument Digital Interface) might be a framework style to transmit data between electronic melodic instruments.

Trackball

The electronic gadget is somewhat similar to relate degree turned mouse, with the ball arranged on high.

You utilize your fingers to roll the electronic gadget, and inner rollers (like what's inside a mouse) sense the movement that is transmitted to the pc.

Trackballs have the favorable position over mice in this the body of the electronic gadget stays stationary on your table.

Designs pill

A designs pill comprises of partner degree electronic composition space and an extraordinary "pen" that works with it.

An illustrations pill grants making graphical pictures with movements and activities.

PC data – Output Devices

Screen


Screens, unremarkably referred to as Visual show Unit (VDU), ar the most yield gadget of a pc.

It structures pictures from little specks, alluded to as pixels that make a preparation in an exceedingly sort of an oval kind.

The sharpness of the picture relies on the amount of pixels.

Printers

The printer is partner degree yield gadget, that is to print information on paper.

There ar 2 assortments of printers:

Effect Printers

Non-Impact Printers

Plotters

A plotter might be a printer that deciphers directions from a pc to frame line illustrations on paper with one or extra machine-driven pens.

In contrast to an every day printer, the plotter will attract constant point-to-point lines legitimately from vector illustrations documents or directions.

Projector

A projector or picture projector is partner degree gadget, that comes an image (or moving pictures) onto a surface, unremarkably a screen.

Speakers

Speakers ar one in everything about premier basic yield gadgets with pc frameworks.

A few speakers ar intended for work explicitly with PCs, while others is appended to any style of electronic hardware.

Memory

Memory is that the space for putting away inside the pc any place data get the strategy and headings required for procedure get store. The memory is part into an outsized assortment of little components alluded to as cells. each area or cell contains a particular location that changes from zero to memory measure short one.
Memory is of three kinds

Store Memory

Essential Memory

Auxiliary Memory

Store Memory

Store memory is an extremely fast semiconductor memory which can accelerate CPU. It goes about as a cradle between the CPU and fundamental memory.

Essential Memory (Main Memory)

Essential memory holds just those information and guidelines on which PC is right now working.

It has constrained limit and information is lost when power is turned off.

It is commonly comprised of the semiconductor gadget.

The information and guidance require being handled dwell in primary memory.

There are two sub-classes ROM and RAM in Primary memory.

Smash :

The RAM (arbitrary access memory) is the spot in a PC where the working framework, application projects, and information in current use are kept.

Slam is a lot quicker to peruse from and write to than different sorts of capacity in a PC, the hard plate, floppy circle, and CD-ROM.

It has two sections:

A. SRAM: Static Random Access Memory

B. Measure: Dynamic Random Access Memory.

ROM:

As the name proposes ROM, stores data that must be perused. Adjusting it is unthinkable or troublesome.

ROM is likewise a kind of non-unstable capacity, which implies that the data in it remains regardless of whether the PC loses control.

This is another kind of ROM that is unimaginable or hard to change.

PROM – Programmable Read Only Memory.

EPROM – Erasable Programmable Read Only Memory.

EEPROM – Electrically Erasable Programmable Read Only Memory.

Significant Computer Knowledge – Development of PC

Math device

Math device is known to be the main mechanical computing gadget.

Which was utilized to be performed expansion and subtraction effectively and rapidly.

Math device is comprised of the wooden edge wherein pole where fitted crosswise over with rounds dots sliding on the pole.

Pascal Calculator

In the year 1642, Blaise Pascal a French researcher created the calculator called Pascal's number cruncher, which speaks to the situation of the digit with the assistance of riggings in it.

Systematic Engine

A researcher from England knows to be Charles Babbage developed such the machine.

This gadget is known as Analytical motor and it is the main mechanical PC.

It incorporates such element which we use in the present scripting language.

For this incredible innovation of the PC, Sir Charles Babbage is otherwise called the dad of the PC.

Age of PCs – Computer Knowledge

Ist Generation: (1940-1956)

Vacuum cylinders got use in circuits.

These PCs are huge in size.

It requires a lot of power.

They produce more warmth.

They are less restoration.

Ex.: ENIAC, UNIVAC.

IInd Generation: (1957-1962)

Vacuum cylinders got the substitution by transistors in circuits.

Little size when contrasted with Ist Generation PCs.

Less measure of warmth Generation.

Less power utilization.

Ex.: IBM 350

IIIrd Generation: (1963-1972)

Transistors got the substitution by I.C. in circuits. (I.C.- Integrated circuits)

Little size when contrasted with IInd Generation PC.

Less measure of warmth when contrasted with IInd Generation PC.

Less power utilization.

Quicker and more exact than the IInd Generation PC.

Ex.: IBM 360/370

IVth Generation: (1973-Present)

LSI and LSVI advances are utilized.

LSI-Large-scale coordination.

LSVI-Very enormous scale coordination.

Apple-II, STAR 1000

Vth Generation: (Present and Beyond)

It depends on the procedure of Artificial Intelligence (AI).

The PC can comprehend verbally expressed words.

Researchers are always attempting to build the preparing intensity of PCs.

They are attempting to make a PC with genuine IQ with the assistance of cutting edge programming and advances.

Ex.: IBM Watson.

Fundamental Computer Knowledge – Classification of Computers

Characterization of working framework

Computerized PC

The computerized PC is the most well-known kind of PC and is utilized to process data with amounts utilizing digits, as a rule utilizing the paired number framework. Ex – MacBook.

Simple Computer

Simple PC that works with numbers spoken to by legitimately quantifiable amounts (as voltages or pivots) — think about advanced PC, mixture PC.

Half and half Computer

Half and half Computer is a PC that consolidates the qualities of a computerized PC and a simple PC by its ability to acknowledge info and give yield in either advanced or simple structure and to process data carefully.

Programming – Computer Knowledge

PC programming is a program or basically programming is a progression of guidelines that guides a PC to perform explicit errands or tasks. PC programming comprises of PC projects, libraries and related non-executable information, (for example, online documentation or advanced media).

There are two fundamental kinds of programming: frameworks programming and application programming.

Frameworks Software

Frameworks programming incorporates the projects that commit to dealing with the PC itself, for example, the working framework, document the executives utilities, and circle working framework (or DOS).

The working framework deals with the PC equipment assets notwithstanding applications and information.

Without frameworks programming introduced on our PCs, we would need to type the directions for all that we needed the PC to do.

Applications Software

Application programming, or basically applications, are frequently called efficiency projects or end-client programs.

They will empower the client to finish assignments, for example, making records, spreadsheets, databases, and distributions, doing on the web explore, sending email, planning designs, running organizations, and notwithstanding making recreations.

Application programming is explicit to the assignment which can be as basic as an adding machine application or as mind boggling as a word preparing application.

When you start making a record, the word preparing programming has effectively set the edges, text style and measure, and the line separating for you.

Be that as it may, you can change these settings, and you have a lot all the more organizing choices accessible.

For instance, the word processor application makes it simple to include shading, headings, include pictures or erase, duplicate, move, and change the archive's appearance to suit your needs.

Bug

A product bug is a blunder, blemish, disappointment or issue in a PC program or framework that makes it produce a mistaken or surprising outcome, or to act in unintended ways.

Virus
Think about a natural infection – the benevolent that makes you wiped out. It's tenaciously awful, confines you from working typically and frequently requires something ground-breaking to dispose of it.

A PC infection is fundamentally the same as. Intended to determinedly reproduce, PC infections taint your projects and documents, change the manner in which your PC works or prevent it from working out and out.

How does a PC get an infection?

Regardless of whether you're cautious you can get PC infections through typical Web exercises like:

Sharing music, records or photographs with different clients

Visiting a contaminated Website.

Opening spam email or an email connection

Downloading free amusements, toolbars, media players and other framework utilities

Introducing standard programming applications without completely perusing permit understandings

Expectation the article on Computer General Knowledge will help for increasing progressively General Knowledge. Make note of this article on Computer Knowledge for Bank tests


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How to screenshots on Mac/Windows/ android /i phone

what is data processing in computer

basic information about computer

Hello, friends in this article we will know some basic information about  computer, we use the computer in our daily life,  but very often aware of computer proficiency and knowledge, this article includes some prima device characteristic such as - history of the computer , the characteristic of computer, basics of computer networks and so on ,
this is mucho indispensable to have cognizance about the basic computer,

credited pic

Basic History knowledge of Computer

 In keeping with the history of the computer, there are many things which we will get to know, as we have categorized the history of English literature, in the same way, the history of computer is categorized such as Abacus, Pascal's calculator, Babbage difference and analytical engines, ABC computer, Electronic numerical integrator, and calculator ( in short terms- ENIAC) and last is Universal automatic computers,

 the first thing is to talk is Abacus, it was the computer's first counting device which was instituted earlier, created with the two partitioned sections and with beads slippy along the steel wires for counting, Abacus concludes of the rectangular wooden frame,

it is that Abacus has provided some features such as multiplication and subtraction, but multiplications and subtractions are done using reiterated additions and subtractions, the beads we had talked about are inserted on to the strings, but multiple numbers of  rows of beads are actually fixed in the cross strings,

Pascal's calculator- pascal's calculator was invented by a French mathematician, named Blaise Pascal, this calculator machine based on gear wheels, this calculator helps to solve the solution in a short time,

this calculator is used to make the job easier, this work like gear wheels, the more we apply our force to the gear wheels, bicycle run fast along with the applied force,

Pascal had done something like this, he used similar gears wheels with ten teeth for each digit position, he fixed them together so that one wheel drives the other when the wheel comparable to units position rotated by ten teeth, ( gear wheels of the bicycle), it propelled the wheel corresponding to the next higher position by one tooth,thus pascal got an idea to calculate the solution and provided 

dials, which indicated the number stored on each wheel,

Pascal had also used the suitable dialing system, to operate the gear wheels, 

Babbage difference and analytical engines - Babbage was concerned to  correct the error in logarithmic tables, that was the time of 1882 while Babbage had to confront the complexity in logarithmic therefore he made a machine which could calculate the difference of expression or equation like - (x to the power 2 + a.x + b ), and prepared a table which helped him in his calculations, in fact, this machine gave the accurate calculation this is why this machine name was kept Babbage's analytical engine, 

this machine used an input device, which would have a processing part called 'mill' where calculation can be performed and would also incorporate,

Herman Hollerith's the machine - this machine was just like the special paper pulp, which he constituted a card from "paper pulp" and designed punching machines to punch holes in the card to count census figures and invented sorting machines to read such punched card and collect data 

ABC Computer - this machine helped a lot to develop the electronic digital computer which was created by Dr.John Atandoff in 1937,

Universal automatic computers - this was the first large scale electronic digital computer, which was created by John Mauchly and Eckart in 1947,the specialty of this machine was, each time a program was changed ,wiring had to be completely rearranged ,it weighed 29 tons ,contained 18000 vacuum tubes and occupied a space of 30 50 feet ,

Characteristic of computers 

In the characteristic of computers, we often talk about how the computer works and what is primarily characteristic of computers,

the computer has some major characteristics such as speed, storage, accuracy, versatility, automation, and reliability,

Speed -  generally computer is known with speed and other characteristics as well, but the speed is concerned in a computer, accord to the class, it can perform from 4 millions of instructions per second to 100 MIPS, which is very easy for a computer a perform in a short while, 
Storage - as we know that, storage of computer basically is measured in terms of Byte, KB(kilobytes ), MB( megabytes), and GB( Gigabytes) and TB( terabytes ),
here TB is the primary storage of a computer and other things, hard disk, floppy disk, compact disk, these all are the secondary storage,

Accuracy-, in fact, the computer provides the high accuracy with high expectation, computer make it vital in various fields such as scientific research, space research, and many more other areas where exactitude of a high order is required,

Versatility- Computers are versatile in that which is because they can perform almost any task, logical steps are provided in the computer, through which they can perform a wide range of tasks such as hotel management, banking applications, and so on tasks,

Reliability - as we know that, a computer is known for its accuracy and other characteristics, on the basis of these, reliability of computer is concerned as it gives the accurate result with preset values, it correct and modify the parameters automatically, to give suitable signals, 

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basic knowledge in computer | basic computer learning