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Thursday, November 21, 2013
What is computer Hardware ?
The physical part of a computer
All tangible items in a Computer system fall into the category of hardware.
Can be internal (located inside the system unit) or external (located outside of the system unit)
Categories of computer Hardware
Input
input devices are used to capture or enter data into the computer.Before data can be used within a computer system,it is usually necessary to convert them into a format that supports processing by computer.Most data are held in human-sensible form that is in a format...
Wednesday, November 20, 2013
What is a Computer system
Computer system
Computer system will include the computer along with any software and peripheral devices that are necessary to make the computer function.Every computer system, for example, requires an operating system....
What are the Data & Information ?
Data
Data are 'raw' details (facts) which do not necessarily mean anything in its purest form.in a database system, data are fact such as employee names, customer ID number,inventory items or customer sales orders.
Information
information is data that has been processed in such a way as to be meaningful to the person who receives it.It is anything that us communicated.&nbs...
Tuesday, November 19, 2013
Information technology
Information technology (It) is the application of computers and telecommunications equipment to store,retrieve,transmit and manipulate data
often in the context of business or other enterprise.
The term is commonly used as a synonym for computer and computer networks, but it also encompasses other information distribution technologies such as television and telephones.Several industries are associated with information technology, semiconductors,internet, telecom equipment, e-commerce and computer services.
In a business context, the Information...
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