FARRUKH ABBAS: DAE

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Wednesday, February 17, 2016

Data Representation

By Farrukh Abbas8:46 PMCOMPUTER, DAE No comments:

Data Representation

The set of symbols to express quantities as the basis of counting is referred to be a number system. There has been various number systems under human use for the purpose of counting and measurement. For instance decimal number system, octal number system, binary number system and hexadecimal number system have been most popular number systems which human beings have been utilizing for the purpose of counting and measurement.

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Computer Software and Programming Languages

By Farrukh Abbas6:43 PMCOMPUTER, DAE No comments:

Computer Software and Programming Languages

An information system has five parts. People, procedures, software, hardware and data. Software which is one of the most important part of an information system. Is an other name for a program or programs. Program is the step by step instructions that tell the computer how to do its work. The purpose of a software is to convert data (unprocessed facts) into information (processed facts). In most cases, words software and programs and interchangeable.

There are two major kinds of software-application software and system software.

Application software are the software the users of the computer use. Whereas system software are used by the computers.

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Classification of Computer

By Farrukh Abbas7:57 PMCOMPUTER, DAE No comments:

Classification of Computer

Types of Computers
1. Analog Computers

2. Digital Computers

3. Hybrid Computers

Description is available in attached file

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History of Computer

By Farrukh Abbas7:26 PMCOMPUTER, DAE No comments:

History Of Computer

At the early age people used pebbles, stones, sticks, scratches, symbols and finger tips to count, which were later replaced by numbers.

The history of computing is divided into three ages during which man invented and improved different types of calculating machines. These ages are,

* Dark age - 300 BC to 1890

* Middle age - 1890 AD to 1944

* Modern age - since 1944 AD

Dark Age (3000 BC to 1890 AD

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