Flashcards
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Flashcards do conjunto (16)
- 1The capability of a computer to communicate with other computers, sometimes called ___________, allows users to quickly and directly access data and information that otherwise would have been unavailable or that probably would have taken considerable time to acquireConnectivity
- 2Communications, sometimes called ________________, refers to the transmission of data, instructions and information over a communications channel between one computer and another computerdata communications
- 3_________________ initiates the transmission of data, instructions or information. A receiving device accepts the data, instructions or information.A sending device, receiving
device - 4Computer equipment is designed to process data as _______, which are individual electrical pulses that represent the bits that are grouped together to form characters. Telephone equipment was originally designed to carry only voice transmission, which is composed of a continuous electrical wave called an __________. A special piece of equipment called a dial-up modem is used to convert between the digital and analog signals so that old telephone lines can carry data. Modern telephone lines can also carry digital data. An ADSL2 modem is used to transmit digital signals using telephone lines.digital signals, analog signal
- 5A collection of computers and devices connected by communications channels that facilitates communications among users is called a _______.network
- 6_______ allow users to share resources such as data, information, hardware and software, and totransfer money via electronic funds transfeNetworks
- 7____________ is a legal agreement that allows multiple users to run a software package simultaneously.A network license
- 8The disadvantages of using a network relate to users becoming dependent on them; for example, if anything goes wrong with the network, the users are unable to be productive. Networks also require continual maintenance and become inefficient if poorly managed. This can include becoming susceptible to a virus or hacker attack, or the network crashing or running slowly through being overloaded or not appropriately configured.lolololol no answer
- 9___________________ is a network that connects computers and devices in a limited geographical area.A local area network (LAN)
- 10A node is any desktop or mobile computer, peripheral such as printer or scanner, or portable device connected to a network.node
- 11_____________________ (also called a network OS or NOS) organises, controls and coordinates the administration, file management, printer management and security activities on a LAN.A network operating system
- 12_____________ allows any computer to share software, data or hardware located on any other computer in the network.A peer-to-peer lan
- 13_____________is a network in which one or more computers act as a server (host computer) and the other computers on the network (clients) can request services from the server. A server controls access to the hardware and software on the network, and provides a centralised storage area for programs, data and information.A client–server LAN
- 14A ___________ performs a specific task. Examples include file servers, print servers, database servers and network servers.dedicated server
- 15The person who oversees the operations of a client–server network is known as the ____________network administrator
- 16________________ is geographic in scope (as opposed to local) and uses telephone lines, microwaves, satellites or a combination of communications channels.A wide area network (WAN)
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- Info Tech FlashCards sobre Sem título, criado por iskraa12 em 03-03-2015.
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- iskraa12
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