CLASSIFICATION OF COMPUTERS 1
Posted in Computer Studies/ICT/IT (All Classes) Data Processing/Information Processing

CLASSIFICATION OF COMPUTERS

CLASSIFICATION OF COMPUTERS

Computers can be classified based on the following criteria

Development of technology (by generation)
Principle of operation (by type)
Storage capacity or by configuration (by size)
Degree of versatility (by purpose)

Classification by types

Computers can be classified into three major types based on principles of operations.

The three types are

Digital computer
Analog computer
Hybrid computer
i) Digital Computer: These are computer that perform calculation and logical operations with quantities represented as digits in binary number system. They operate on digital data such as numbers which are referred to discrete values. Digital computers give more accurate and faster results. They are counting devices. Examples are digital clocks, mobile phones, calculations, microcomputers, etc.

DATA AND INFORMATION 2
Posted in Computer Studies/ICT/IT (All Classes) Data Processing/Information Processing

DATA AND INFORMATION

What is data?, What is information?

Data

Data refers to raw facts yet to be processed. It is a fact, number or text that can be processed by a computer. Data has no meaning to the user unless processed to get meaningful information.

Source of data

Data can be obtained by any one or more of the following methods.

Counting
Observation of people, activities or event
Questionnaires result
Face to face interviews
Form filling
Test or examination scores, etc.

GENERATIONS OF COMPUTER 3
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GENERATIONS OF COMPUTER

What are the generations of computer?

Generation of computers

A generation is often referred to the state of improvement in the development of a product. Generation of computer is the advancement of computer technology from time to time.

In every generation, the circuitry has become smaller and more advanced than the previous generation. Each generation of computer is characterized by a major technological development.

There are five generations of computer, which are

First generation (1940 – 1956)
Second generation (1956 – 1963)
Third generation (1964 – 1971)
Fourth generation (1971 – 1983)
Fifth generation (1983 – present and beyond)

Concept of Data Processing 4
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Concept of Data Processing

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DATA PROCESSING 5
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DATA PROCESSING

Data processing is the collection and manipulation of items of data to produce meaningful information. Data processing is the process of manipulation data to generate information.  Data processing methods are techniques used to process/sort different types of data.

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DATA PROCESSING PAST QUESTIONS (SSCE)

Data Processing Past Questions

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DATA PROCESSING

3,847 ViewsDATA PROCESSING Data processing is the collection and manipulation of items of data to produce meaningful information. Data processing…