Quiz 7

1.
Sender, beneficiary, and a atmosphere. That's in the order of the most chief definition of the components of computer network
2.
sending device initiates the transmission of data, instructions, and information while a receiving device accepts the items transmitted.
Microcomputers, minicomputers, and mainframes all can serve as sending and receiving devices.
3.
Today most computers are capable (through either a phone line or a cable connection) of exchanging information over the Internet. Your child can send a message from his or her computer to the computer of a neighbor or a friend on the other side of the planet. Students might use computers to communicate with their classmates about homework assignments, group projects, or other school-related activities. They may also use them to submit homework assignments and presentations to their teachers.
4.

• A user can logon to a computer anywhere on the network and access their work files from the file server.
• Computers can be managed centrally - with the same software installed on each one.
• Time - it is much faster to install an application once on a network - and copy it across the network to every workstation.
• Sharing printers, plotters, modems etc saves money and time.
• Security - the Network Manager can allocate usernames and passwords to all users to try to prevent unauthorised access.
• It is easy and convenient to monitor users - for example websites visited or documents printed - this can be done using software running on the server.

5.
A server a computer program running to serve the needs or requests of other programs (referred to in this context as "clients") which may or may not be running on the same computer. Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the application.
6.
A network standard defines guidelines that specify the way computers access the medium to which they are attached the speeds used on different types of networks, and the types of physical cable and/or wireless technology used.
Ethernet: network standard that specifies no central computer or device on the network (nodes) should control when data can be transmitted; that is, each node attempts to transmit data when it determines the network is available to receive communications. Also based on a bus topology but can be wired in a star pattern.
Token Ring: specifies that computers and devices on the network share or pass a special signal in an unidirectional manner and in a preset order. A token is a special series of bits that function like a ticket. The device with the token can transmit data over network only one token exist per network. This ensures that only one computer transmits data at a time.
TCP/IP: Short for Transmission Control Protocol/Internet Protocol; a network standard that defines how messages or data are routed from one end of the network to the other, ensuring the data arrives correctly.
(Wi-Fi): Wi-Fi is a series of network standards that specifies how two wireless devices communicate over the air with each other. Wi-Fi certifies products are guaranteed to be able to communicate with each other. Wi-Fi also supports much faster data transfer rates, allows a network many computers and devices together.
7.

• It helps us to control the computer hardwares and use them in useful way.

• OfficeIntercom lets you use your computer to speak to others over the internet or your local office computer network. It works as a virtual intercom and feels a little like using a CB radio. To talk to anyone else who has installed OfficeIntercom anywhere in the world, just hold down a key on the keyboard. Speak into your computer's microphone and you will be heard through the other computer's speakers. You can assign system-wide 'hot' keys, or use hardwired buttons or a SpeechMike handset to connect directly without opening OfficeIntercom.