BASIC CONCEPT |
ARCHITECTURE |
TOPOLOGY |
NETWORK A COLLECTION OF COMPUTER AND MOBILE DEVICES CONNECTED TOGETHER VIA COMMUNICATION DEVICES AND TRANSMISSION MEDIA, OFTEN WIRELESSLY ALLOWING TO SHARE RESOURCES | ||
COMMUNICATION DEVICE HARDWARE COMPONENT THAT ENABLES A COMPUTER TO SEND AND RECEIVE DATA, INSTRUCTIONS, AND INFORMATION TO AND FROM ONE TO MORE COMPUTERS | TRANSMISSION MEDIA THE MATERIALS OR SUBSTANCE CAPABLE OF CARRYING ONE OR MORE SIGNAL | |
MODEM WIRELESS ACCESS POINT ROUTER HUB SWITCH NETWORK INTERFACE CARDS | PHYSICAL: TWISTED-PAIR CABLECOAXIAL CABLE FIBER OPTIC WIRELESS: INFRAREDMICROWAVES CELLULAR RADIO BLUETOOTH | |
ADVANTAGES OF NETWORK | DISADVANTAGES OF NETWORK | |
HARDWARE SHARING : NETWORK FACILITATE THE SHARING OF HARDWAREE DEVICES SUCH AS PRINTER INTERNET ACCESS SHARING : SMALL COMPUTER NETWORKS ALLOW MULTIPLE USER TO SHARE A SINGLE INTERNET CONNECTION | UNDESIRABLE SHARING : VIRUSES ARE EASILY SPREAD OVER NETWORK AND THE INTERNET SECURITY ISSUES : A COMPUTER HACKER CAN GET UNAUTHORIZED ACCESS BY USING DIFFERENT TOOLS |