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Archive for November, 2007

The three common number systems used by computers are binary, decimal and hexadecimal. Learn what this means and write a short explanation on how they differ (giving examples of each).

Binary
The binary system only consists of two digits, one and zero. Since zeros and ones can be easily represented by two voltage levels on an [...]

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1. In relation to computers, what is a bit? why is data stored in bits?
A bit is a Binary digit ( basic unit of information storage and and cumminication of in digital computing and digital information theory), it takes a value of either “0″ or “1″ and is the smallest possible measurement for the data [...]

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ASCII

What does the acronym stand for? The acronym for ASCII is American Standard Code For Information Interchange.
How many different characters can standard ASCII represent? What about extended ASCII? Standard ASCII can represent 128 characters whereas extended ASCII can represent twice as many characters than standard, 256, these extra characters include symbols and foreign language characters 
Why is it [...]

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Answer must be ≥150 words.

What is meant by a computer word?

The term a computer ‘word’ refers and describes a fixed size of bits which are used together at the same time when running a machine/program. Some examples of this are computers. In measuring words, it is called ‘Word length’. For example, when measuring a computer they [...]

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Around the world many people who have a  computer and need to access the internet. Companies have developed web browser applications which help computer users to access the internet.
Over the years many different web browsers have been developed. Some have been very successful while others have been phased out.
Microsoft Internet explorer is probably the most popular and [...]

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Application Software is any program that is altered to perform a specific misson directly for the user or in some other case, for other applications. The System software is any computer software that controls and advocates the computer software so that the application software can perform specific task.
Example of application software
The first example of an application [...]

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The disadvantages and advantages of open source software:
BENEFITS OF Microsoft Moxilla firefox: the code can be available, the rights and the termination of the use of the software are solely up to the receiver, the usage of Mozilla is almost as equivalent as using Microsoft internet explorer and has more features such as tabs and scroll bars. There is [...]

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Nahian’s answer to Q2

System Software is the operating system and all utility programs that manage computer resources . Software is generally divided into systems software and applications software. Applications software includes programs designed for an end user, such as word processors, database systems, and spreadsheet programs. Systems software includes compilers, loaders, linkers, and debuggers. Bacically, System software is a computer [...]

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Write a brief definition of “cross-platform software”, and find 3 examples of it. Give an explanation of the benefits and disadvantages of cross-platform software. Answer must be ≥200 words.
Definition 
Cross Platform Software is where  the software and their impletations can be made to work on multiple computer platforms.
Some examples of Cross Platform Software are;
The Microsoft Windows [...]

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System Software

System software has 5 basic functions: hardware support, data access control, usage records, resource management and security. Give a brief description of each and an example. Answer must be ≥200 words.

HARDWARE SUPPORT
Hardware support is where there is a monitor there is all this information coming out of it, font, colour, pictures, Hardware support is the thing that controls what [...]

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