10th Class Physics Chapter 8 Information and Communication Technology Short Question Answer
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10th Class Physics Chapter 8 Information and Communication Technology Short Question Answer
1. Fiver optics is difficult to install
2. It is quite expensive
Information and communication technology are the scientific methods and means to store, process and transmit vast amount of information is seconds with help of electronic equipment’s.
Data: data are facts and figures that are used by programs to produce useful information .It may be no the form of text, graphic or figure that can be recorded and that have specific meaning.
In computer terminology, processed data is called information. Computer processes the data and converts it into useful information.
Floppy disk is made up of flexible plastic wager packed in plastic case. It is coated with magnetic oxides. It can store data from 1 to 3 MB.
Primary memory:
1. It has direct access to processor.
2. It has low capacity
3. It has very fast access.
The Method that is used to communicate information too far of places instantly is called telecommunication.
The Data store devices are generally secondary memory of the computer. It is used to store date permanently in the computer.
1. Its error states is very low
2. There is no noise and distortion in fiber optics.
RAM: it is based electronics and consist of integrated circuits is random access memory. It vanishes when the computer is switched off.It is a temporary memory.
It is electronic device that consist of data storage ICs. A flash drive is a small storage device that can be used to transfer files from one computer to another.
Hard ware:
1. All touchable part of computer are called hardware.
2. Includes CPU, monitor, keyboard, Mouse etc.
Data stored on CD can only by read but cannot be erases.Therefore, CD memory is called read only memory.
The most powerful and swift computer which can send information in one thousand billionth part of a second is called supercomputer. It contains many processors.
E-commerce is the way of doing business on the web. We can order our favorite book or any other item on line, for instance, amazon.com has selling books, music and video successfully for years.
i. Cell
ii. Base stations
iii. Mobile switching center.
ICT brought a resolution in the field of education and research. We can get easy approach to modern to modern and fresh knowledge through ICT.
The operating system is a software that manages our computer and the device connected to it.
Example:
i. Windows
ii. Linux
