Users may need to remember multiple passwords.
Files can be duplicated and changes overwritten between the computers with the shared folder and the Server.
Files saved on the workstation are not backed up.
...
Sunday, 30 June 2013
Advantages of Hybrid Network - peak concepts
Client Server application are still centrally located and managed.
Users can assign local access to resources in their computers.
Workgroups can manage resources without requiring assistance from network administrator.
...
What is Hybrid networks - peak concepts
Hybrid networks are the networks that are based on both peer-to-peer & client-server relationship.
Hybrid
networks incorporate the best features of workgroups in peer-to-peer
networks with the performance, security and reliability of server-based
networks.
Hybrid
networks still provide all of the centralized services of servers, but
they also allow...
What is packet - peak concepts
A packet is the unit of data that is routed between an origin of computer network and a destination of computer network on the Internet or any other packet-switched computer network.
When any file (e-mail message, HTML file, Graphics Interchange Format
file, Uniform Resource Locator request, and so forth) is sent from one
place of computer network...
Disadvantages of Peer to Peer Networks - peak concepts
1.
In peer-to-peer network, the absence of centralized server make it
difficult to backup data as data is located on different workstations.
2. Security is weak as each system manages itself only.
3. There is no central point of data storage for file archiving.
...
Advantages of Peer to Peer Networks - peak concepts
1. Such networks are easy to set up and maintain as each computer manages itself.2. It eliminates extra cost required in setting up the server.3. Since each device is master of its own, they an: not dependent on other computers for their operations.
...
What is Peer-to-Peer Networks - peak concepts
In the peer to peer computer
network model we simply use the same Workgroup for all the computers
and a unique name for each computer in a computer network.
There is no master or controller or central server in this computer network and computers join hands to share files, printers and Internet access.
It is practical for workgroups of a dozen or less...
What is Internet - peak concepts
Internet : A specific Internetworking, consisting of a worldwide interconnection of governmental, academic, public, and private networks based upon the Advanced Research Projects Agency Network (ARPANET) developed by ARPA of the U.S. Department of Defense also home to the World Wide Web (WWW) and referred to as the 'Internet'
with a capital 'I' to distinguish it from...
What is Intranet - peak concepts
Intranet : An intranet is a set of interconnected networks or Internetworking, using the Internet Protocol and uses IP-based tools such as web browsers and ftp tools, that is under the control of a single administrative entity.
That administrative entity closes the intranet to the rest of the
world, and allows only specific users. Most commonly, an intranet is the
...
What is Extranet - peak concepts
Extranet : An extranet is a network of internetwork or Internetworking that is limited in scope to a single organisation or entity but which also has limited connections to the networks of one or more other usually, but not necessarily, trusted organizations or entities .Technically, an extranet may also be categorized as a MAN, WAN,
or other type of network, although,...
What is Internetworking - peak concepts
Internetworking started as a way to connect disparate types of computer networking technology. Computer
network term is used to describe two or more computers that are linked
to each other. When two or more computer networks or computer network
segments are connected using devices such as a router then it is called
as computer internetworking.
...
What is Transaction server - peak concepts
Transaction servers-
Clients invoke remote procedures that reside on servers which also
contains an SQL database engine. There are procedural statements on the
server to execute a group of SQL statements (transactions) which either
all succeed or fail as a unit. The applications based on transaction
servers are called On-line Transaction Processing (OLTP) and tend...
What is Database server - peak concepts
Database servers-In
database servers, clients passes SQL (Structured Query Language)
requests as messages to the server and the results of the query are
returned over the network. The code that processes the SQL request and
the data resides on the server allowing it to use its own processing
power to find the requested data, rather than pass all the records back...
What is file server - peak concepts
File servers. -With a file server, the Computer Network client passes requests for
computer
network files or file records over a computer network to the file
server.
This form of computer network data service requires large
bandwidth and can slow a computer network with many users down
considerably. Traditional LAN (Local area Network) computing...
What is modem - peak concepts
Modem is abbreviation for Modulator – Demodulator. Modems are used for data transfer from one computer
network to another computer network through telephone lines. The
computer network works in digital mode, while analog technology is used
for carrying massages across phone lines.
Modulator converts information from digital mode to analog mode at the transmitting...
What is Switching - peak concepts
Switching: Every time in computer
network you access the internet or another computer network outside
your immediate location, your messages are sent through a maze of
transmission media and connection devices. The mechanism for moving
information between different computer network and network segment is
called switching in computer network.
For
example:...
What are Network Services - peak concepts
1. Network services are the thing that a network can do. The major networking services are
2. File Services: This includes file transfer, storage, data migration, file update, synchronization and achieving.
3. Printing Services: This service produces shared access to valuable printing devices.
4. Message Services: This service facilitates email, voice mails and coordinate object oriented applications.
5. Application Services: This services allows to centralize high profile applications to increase performance and scalability...
Advantages of Network - peak concepts
The following are the distinct notes in favor of computer network.
1. The computers, staff and information can be well managed
2. A network provides the means to exchange data among the computers and to make programs and data available to people
3. It permits the sharing of the resources of the machine
4. Networking also provides the function of back-up.
5.
Networking provides a flexible networking environment. Employees can
work at home by using through networks ties through networks into the
computer at office.&n...
What is a computer network - peak concepts
A computer
network consists of two or more computers that are linked in order to
share resources such as printers and CD-ROMs, exchange files, or allow
electronic communications. The computers on a computer network may be
linked through cables, telephone lines, radio waves, satellites, or
infrared light beams.
Computer network can be classified on the basis of following features :
By Scale:Computer networks may be classified according to the scale : Local Area Network (LAN) Metropolitan Area Network (MAN) ...
Saturday, 29 June 2013
What is a Bank ? Introduction, Definition and Features of Bank
Fiance is the life blood of trade, commerce and industry. Now-a-days,
banking sector acts as the backbone of modern business. Development of
any country mainly depends upon the banking system.
The term bank is either derived from old Italian word banca or from a French word banque both mean a Bench or money exchange table.
In olden days, European money lenders or money...
