COMMUNICATIONS, THE INTERNET AND WIRELESS TECHNOLOGY
by Maziah Rahman
1. A SIMPLE NETWORK CONSIST OF TWO OR MORE CONNECTED COMPUTERS. BASIC NETWORK COMPONENTS INCLUDE COMPUTERS, NETWORK INTERFACE, A CONNECTION MEDIUM, NETWORK OPERATING SYSTEM SOFTWARE, AND EITHER A HUB OR SWITCH. THE NETWORKING INFRASTRUCTURE FOR A LARGE COMPANY INCLUDES THE TRADITIONAL TELEPHONE SYSTEM , MOBILE CELLULAR COMMUNICATION , WIRELESS LOCAL AREA NETWORKS , VIDEOCONFERENCING SYSTEMS , A CORPORATE WEB SITE , INTRANETS , EXTRANETS , AND AN ARRAY OF LOCAL AND WIDE AREA NETWORKS , INCLUDING THE INTERNET. CONTEMPORARY NETWORKS HAVE BEEN SHAPED BY THE RISE OF CLIENT / SERVER COMPUTING, THE USE OF PACKET SWITCHING, AND THE ADOPTION OF TRANSMISSION CONTROL PROTOCOL / INTERNET PROTOCOL (TCP / IP) AS A UNIVERSAL COMMUNICATIONS STANDARD FOR LINKING DISPARATE NETWORKS AND COMPUTERS, INCLUDING THE INTERNET. PROTOCOLS PROVIDE A COMMON SET OF RULES THAT ENABLE COMMUNICATION AMONG DIVERSE COMPONENTS IN A TELECOMMUNICATIONS NETWORK.
2. A CITY OR METROPOLITAN AREA
3. MAN
4. Connects a group of computers in close proximity, such as in an office building, school, or home
5. IMPORTANCE OF TELECOMMUNICATIONS
6. Importance of TelecommunicationThings are very easy as far as learning distance.
6.1. Importance of internet
7. the internet is full of information
8. WAN
9. HERTZ (1 Hertz, means one cycle of information at a second)Greater frequency (Hertz) provides greater range of bandwidth and more transmission capacity. Transmission capacity measured as bits per second.
10. BITS PER SECOND (BPS)
11. BANDWIDTH- IS RANGE OF FREQUENCIES WITHIN A GIVEN BAND TO TRANSMIT SIGNAL
12. CAN
13. MAN
14. TYPE OF NETWORKS
15. TRANSMISSION SPEED
16. EXAMPLES OF AREA NETWORK
16.1. LAN
16.1.1. OFFICE OR FLOOR OF A BUILDING
16.2. WAN
16.2.1. GLOBAL AREA
16.3. CAN
16.3.1. COLLEGE CAMPUS OR CORPORATE FACILITY