Sunday, November 18, 2012

Computer Classification

Computer classification use to identify the correct computer for the required task.in here we are learning computer categorization under 3 reasons
  1. By the operating principals
  2. By the aim of the application
  3. By the size and speed
By the operating principals
In this categorization we consider the current signals using in side the computer There are two signal types we consider
  • Analogue signal
a signal that represent a value within a range and increase decrease over a time continuously.

  • Digital signal
a signal that represent a value using pulses within an same interval (Frequency)and includes only two states (1/0)(On/Off)
Digital computers
computers uses digital signals for process data ,it uses a counter to count the signal and calculate the vale due to the signal pattern
Analogue computers
computers uses analogue signals and it measures the signal for indicated value.
Hybrid computers
the computers uses analog and digital both signals and they have both signal types advantages.
According to the aim of the application
Special function Computers
This computers that design for only specific task (Function). it includes the performance and devices that only facilitate for the given task(Function).
Eg: Automated tailor machine,Medical scanner machines
General purpose computers
this computers are designed for common general applications of the society.they support for install applications programming games ,word processing etc.
Size and the speed of the computer
in here we consider about the size and the performance of the computer to categorizing.
  • Super computer
  • Mainframe computer
  • Mini computer
  • Micro computer
Super Computer
Computers that has high performance than nonequivalent to the other category we explains as super computers. they are uneuqelent by speed memory accuracy and other performances
Main Frame computers
These computers are only second for super computers under performances.
Mini Computers
These computers has more performance than micro computers. this computers
Micro Computers
Named as Personal computer because one person at a time use this computer, and Desktop computer because it can arrange in a desk. this computer is doing task one after the other (Serial) and have less performance for supporting for only single user
Laptop(notebook)
a computer that can keep on your lap, this belongs to microcomputer category but this is portable . you can carry it when traveling.
tablet
like a notepad ,you can easily handle it lie a note pad
palm pilot
small computer that can keep on your palm
other types of computers
Network computer
a computer that link in to a network(LAN) can explain as network computer and can name as workstation also.if it is controlled by a server in client server environment it also named as client.
computer platform
computers are manufactured by different companies and they uses different processor architectures in its processing and handling instructions. so different plat form uses different type of instructions.
Eg:
Apple,Intel,
computer platform not only depend by the processor architecture ,but also with operating system . we ll discuss later.

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