Monday, 21 December 2015

Types of Computers Bank Material for IBPS Bank Exams

Types of Computers Bank Material for IBPS Bank Exams

TYPES OF COMPUTERS:

An Electronic Device that accepts (INPUT), processes, produces (OUTPUT) and Stores (STORAGE) the data is called COMPUTER and this can be used to type documents, browse the Internet and to send e-mails in addition to attend specific operations required from time to time. It can store, retrieve and process the data. It can also be treated as Common Operational Machine Purposefully Used for Teaching, Entertainment and Research.
 

Computers are basically classified into 2 categories based on their Principle of Operation and Nature of Configuration. The computers categorized on Operational Principle can be further divided into 3 categories such as Analog, Digital and Hybrid Computers. Similarly, the computers classified on Configuration nature can also be categorized into 4 Categories such as Micro, Mini, Mainframe and Super Computers.
  • ANALOG COMPUTERS

                   Analog Computer works on continuous range of varied values of Physical quantities like Temperature, Speed, Voltage, Pressure etc. and generates approximate results.
  • DIGITAL COMPUTERS

 The Digital computer is designed with digital circuits in which there are two levels (logic 0 and logic 1) for an input and output signal. This computer is very much useful to solve complex problems in Engineering and Technology and hence it has increasing use in the field of design, research and data processing. If this digital computer is used for any type of application, then it is called as General Purpose Computer and Special Purpose Computer when it is used for specific application/program.
  • HYBRID COMPUTERS

A computer used for automatic operations of complicated physical processes to transform the data into suitable form is called Hybrid Computer. The conversion of analog data as digital and vice-versa is the advantage of this computer.
  • MICRO COMPUTERS

                        The most commonly used computer by everybody at any place is called Micro Computer, in which Microprocessor is the major source of operation. Desktop Computers, Laptops, notebook computers, Palmtop computers, In-car Computers (Carputers), Handheld Game Consoles, Programme Calculators, Table Computers, Smart Phones, Smart Books, Personal Digital Assistants (PDAs) etc. are the examples for this computer.
                                            
                                                                     
  • MINI COMPUTER

The multi-user midrange Computer that works in between smallest multi-user systems and largest single-user system is called as Mini Computer.
  • MAINFRAME COMPUTER

The computer capable for processing large amount of data very quickly to service multiple users from the smaller and single user machine is called as Mainframe Computer. These computers are used in Large Organizations/Establishments such as Government, Banks, Corporations etc. They respond to upto 100s of millions of users at a time and measured in MIPS (Million Instructions per Second).

  • SUPER COMPUTER

                        An extremely fast computer capable to perform hundreds of millions of instructions per second is called Super Computer. These computers are used for applications of intensive numerical computations such as Weather forecasting, Stock Market Analysis, Scientific Calculations, Animated Graphics, Research Analysis etc.
                                                                      SUPER COMPUTER
The entire description is abridged here under for ready reference:
C
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M
P
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T
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R
S
PRINCIPLE OF
OPERATION
ANALOG COMPUTERS
          —
Computers used to  measure variable quantities like Voltage, Temperature, Pressure, Speed etc.
DIGITAL COMPUTERS
GENERAL PURPOSE COMPUTER
Computer used to process general programs/applications.
SPECIAL PURPOSE COMPUTER
Computer used to  process data for a   specific  purpose/application
HYBRID COMPUTERS
          —
Computer used to convert analog-to-digital and digital-to-analog data for a specialized task.
NATURE OF CONFIGURATION
MICRO COMPUTERS
DESKTOP COMPUTER
A Single-user Personal Computer for individual use of small application requirements.
LAPTOP  COMPUTER
A Single-user Portable Note Book Computer allowed to use anywhere because of its small size.
HANDHELD COMPUTER
A Single-user Small pen based Personal Digital Assistant (PDA) with touch screen facility.
MINI COMPUTERS
          —
Multi-user Computers with less Speed and Storage Capacity.
MAINFRAME COMPUTERS
          —
An expensive very high speed Computers used in Railways, Banks, Airlines etc.
SUPER COMPUTERS
          —
An Advanced and most expensive Computers used for intensive numerical computations such as Weather Forecasting, Stock Market Analysis etc.

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