A ctivity of the major types of modern communication technologies used primarily for extension purposes. . Micro Computers: Computers are classified as mainframes (large and costly), mini computers (less powerful) and micro-computers (based on microchip technology). This classification is based on their power, speed of executing a set of instructions and the amount of memory available to store data as well as degree of inter connectivity that the computer offers.
What is Bluetooth Technology? Bluetooth Technology is a low-cost, short– range radio frequency (RF) link between mobile PCs, mobile phones and other portable devices capable of transmitting voice and data at the rate of Mbps, which is from three to eight times the average speed of parallel Is it a blue coloured tooth? and serial ports, respectively. It can transmit through solid, non-metal objects.
It allows wireless control of and communication between a cell phone and a hands free head set or a car kit. The functions of micro-computer, particularly for extension work, include processing, keeping record of all kinds of information, performing accounting function, acting as repository of various cases, experiences to be used for research and field purpose in a very small space and publishing information material at reasonable cost. Computers can also communicate with each other if linked together and provide sourcing of information from across the globe. .
Video text: Video text or view-data is an electronic text service transmitted from central computer to home TV–set via telephone network or cable system. It is interactive in the sense that the viewer has the option to access the desired data. . Electronic mail (E-mail): It is the system which passes information electronically from sender to receiver.
E-mail system is like surface mail in which a message is typed on the computer and sent to another computer via the mobile phone. It is a simple way of communicating Write any two messages that you remember from the hoardings displayed on road sides. Also write your interpretation of the messages: Message: Interpretation: Message: Interpretation: