Off-line storage Term used to describe any storage that is removable and cannot be accessed by the computer
once removed. A good example of off-line storage is a floppy
disk. Off-line storage allows a user to store information that will not
be affected by computer viruses or hardware failure.Although off-line storage could be considered secondary storage, we've
separated these into their own category because this media can be
easily removed from the computer and stored elsewhere.
Types of Computer Networks Computer networks are categorized according to: How they are organized physically. The way they are used. The distance over which they operate. Three main types of computer networks are as follows: LAN (Local Area Network) WAN (Wide Area Network) MAN ( Metropolitan-Area Network) LAN (Local Area Network) LAN is the most common type of network . LAN stands for Local area Network . It covers a small area. Most LANs are used to connect computers in a single building or group of buildings. Hundreds or thousands of computer maybe connected through LAN. Typical LANs can be found in industrial plants, office buildings, and college or university campuses. LANs are capable of transmitting data at very fast rate. Data transmission speeds of LAN are 1 to 100 megabits per second. It is much faster than data transmission over a telephone line. LAN can transmit data in a limited distance. There is also a limit on the number of...

Comments
Post a Comment