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Basic Computer Fundamental Part – 01

In this blog you will learn basic computer fundamental part 01 as well as you can see the video.

basic computer fundamental part 01

                Basic computer fundamental:

What is Computer?
An electronic device that stores, retrieves, and processes data, and can be programmed with instructions. A computer is composed of hardware and software, and can exist in a variety of sizes and configurations.

Hardware & Software.
 The term hardware refers to the physical components of your computer such as the system unit, mouse, keyboard, monitor etc.
The software is the instructions that make the computer work. Software is held either on your computer’s hard disk, CD-ROM, DVD or on a Pen drives and is loaded (i.e. copied) from the disk into the computers RAM (Random Access Memory), as and when required.

Types of Computer.

Mini and Mainframe Computers: – Very powerful, used by large organizations such an banks to control the entire business operation. Very expensive!
Personal Computers: – Cheap and easy to use. Often used as stand-alone computers or in a network. May be connected to large mainframe computers within big companies.

Hardware Components:       Input Devices — “How to tell it what to do“
A keyboard and mouse are the standard way to interact with the computer. Other devices include joysticks and game pads used primarily for games.

Output Devices — “How it shows you what it is doing” The monitor (the screen) is how the computer sends information back to you. A printer is also an output device.

  • The Mouse: – Used to ‘drive’ Microsoft Windows
  • The Keyboard: – The keyboard is still the commonest way of entering information into a computer.
  • Tracker Balls : – An alternative to the traditional mouse and often used by graphic designers ent
  • Scanners : A scanner allows you to scan printed material and convert it into a file format that may be used within the PC
  • Touch Pads: – A device that lays on the desktop and responds to pressure
  • Light Pens: – Used to allow users to point to areas on a screen
  • Joysticks: – Many games require a joystick for the proper playing of the game

OUTPUT DEVICES

  • Printers: There are many different types of printers.  In large organizations laser printers are most commonly used due to the fact that they can print very fast and give a very high quality output.
  • Plotters A plotter is an output device similar to a printer, but normally allows you to print larger images.
  • Speakers : Enhances the value of educational and presentation products.

Storage Devices — “How it saves data and programs
Hard disk drives are an internal, higher capacity drive which also stores the operating system which runs when you power on the computer.

  • Hard Disks

Speed: Very fast!

The speed of a hard disk is often quoted as “average access time” speed, measured in milliseconds. The smaller this number the faster the disk.

Capacity: Enormous! Often 500 /1000 Gigabytes. A Gigabyte is equivalent to 1024 Megabytes.

  • CD-ROM Disks

Speed:
Much slower than hard disks. The original CD-ROM speciation is given a value of 1x speed, and later, faster CD-ROMs are quoted as a multiple of this value.
Capacity:  Around 650 Mbytes and more

  • DVD Drives 

Speed: Much faster than CD-ROM drives but not as fast as hard disks.

Capacity:  Up to 17 Gbytes.

Main Parts of Computer

Memory  “How the processor stores and uses immediate data“

 RAM – Random Access Memory

The main ‘working’ memory used by the computer.

When the operating system loads from disk when you first switch on the computer, it is copied into RAM. As a rough rule, a Microsoft Windows based computer will operate faster if you install more RAM. Data and programs stored in RAM are volatile (i.e. the information is lost when you switch off the computer).

Read Only Memory (ROM) as the name suggests is a special type of memory chip that holds software that can be read but not written to. A good example is the ROM-BIOS chip, which contains read-only software. Often network cards and video cards also contain ROM chips.

Motherboard:

A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.

Software Component

Operating systems software :

The operating system is a special type of program that loads automatically when you start your computer.  The operating system allows you to use the advanced features of a modern computer without having to learn all the details of how the hardware works
the link between the hardware and you, the user make the computer easy to use without having to understand bits and bytes!

Applications software

An application program is the type of program that you use once the operating system has been loaded.  Examples include word-processing programs, spreadsheets and databases

Information Network

LAN:  A LAN (Local Area Network) is systems whereby individual PCs are connected together within a company or organization
WAN:  A WAN (Wide Area Network) as the name implies allows you to connect to other computers over a wider area (i.e. the whole world).

Uses of Network
If ten people are working together within an office it makes sense for them all to be connected.

  • In this way the office can have a single printer and all ten people can print to it.
  • In a similar way other devices such as modems or scanners can be shared.
  • Even more useful is the ability to share information when connected to a network.

Information Network

LAN:  A LAN (Local Area Network) is systems whereby individual PCs are connected together within a company or organization
WAN:  A WAN (Wide Area Network) as the name implies allows you to connect to other computers over a wider area (i.e. the whole world).

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Basic Computer Classes in Aya Nagar
basic computer course in aya nagar
basic computer classes near me
basic computer classes in DelhiBasic Computer Classes in Aya Nagar
basic computer course in aya nagar
basic computer classes near me
basic computer classes in Delhi

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