Researchers in the field of HCI both

observe the ways in which humans interact with computers

design technologies that let humans interact with computers in novel ways

observe the ways in which humans interact with software

observe the ways in which humans interact with hardware

observe the ways in which humans interact with firmware

Hierarchical database modeling:

data is organized into an inverted tree-like structure

Each record has a single parent

structure arranges the various data elements in a hierarchy

Each unit in the model is a report which is also known as a node

tends to store records with links to other records

Database models are defined by three components:

an acceptable data organization

the set of admissible operations

Name the factors that led to the emergence and development of Data Mining:

Accumulation of a large amount of retrospective data

Hardware and software development

Improvement of data storage and recording technologies

Heredity, variability and natural selection

Examples of end network devices include:

computers, laptops, file servers, web servers

It’s the central controlling device

a device used to extend a network so that additional workstations can be attached

this device typically provides from 4 to 24 connections

an electronic device that receives a signal and retransmits it at a higher power level

a device or application that uses the services provided by a server

Specify main features of network bridges?

connects multiple network segments at the data link layer (layer 2) of the OSI model

do not promiscuously copy traffic to all ports

do send broadcasts to all ports except the one on which the broadcast was received

a device or application that uses the services provided by a server

a PC or a workstation on a network using services provided from the network file server

Computer networks can be classified by considering following different aspects as the basis

the functional relationship (Network Architectures)

An intermediary devices include:

Switches and wireless access points

Every node has a unique network address which is called

a Data Link Control (DLC) address

Media Access Control (MAC) address

a Data Lost Control (DLC) address

a Data Link Collect (DLC) address

Media Access Collect (MAC) address

In the network client is

a device or application that uses the services provided by a server

a computer which is capable of receiving the information from the server in the Internet

any computer that makes access to files, printing, communications, and other services available to users of the network

a device or application that uses the services provided by a client

a more advanced processor, more memory, a larger cache, and more disk storage than a single-user workstation

Server in the network

any computer that makes access to files, printing, communications, and other services available to users of the network

a more advanced processor, more memory, a larger cache, and more disk storage than a single-user workstation

a device or application that uses the services provided by a browser

a device or application that uses the services provided by a OSI model

a PC or a workstation on a network using services provided from the network administrator

A networking device that forwards packets between networks using information in protocol headers and forwarding tables to determine the best for each packet

Routers work at the Network Layer of the OSI model and the Internet Layer of TCP/IP

A device or application that uses the services provided by a server

A PC or a workstation on a network using services provided from the network file server

A device used to reduce a network so that additional workstations can not be attached

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Authored by Albina Sansuzbai

Computers

5th Grade

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MULTIPLE SELECT QUESTION

30 sec • 1 pt

The term informatigue (informatics) is formed by merging the words ... and ... .

Information

Automatigue

Informative

Auto

Informational

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Choose information processes.

To store

To collect

To process

To control

To assess

MULTIPLE SELECT QUESTION

30 sec • 1 pt

The acronym ICT is used to denote a new concept which is a combination of two concepts:

Information processing

Information technology

Computing machine

Communication technology

Computer technology

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Choose output devices.

Speaker

Plotter

Microphone

Scanner

Mouse

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Choose peripheral devices.

Microphone

Speaker

Scanner

Monitor

Keyboard

MULTIPLE SELECT QUESTION

30 sec • 1 pt

A CPU clock rate is measured in:

GHz

1/sec

Inch

dpi

MULTIPLE SELECT QUESTION

30 sec • 1 pt

These keys are used to type capital letters:

Caps Lock

Shift

Space Bar

Windows

ESC

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The term informatigue (informatics) is formed by merging the words ... and ... .

Choose information processes.

The acronym ICT is used to denote a new concept which is a combination of two concepts:

Choose output devices.

Choose peripheral devices.

A CPU clock rate is measured in:

These keys are used to type capital letters:

Choose types of printers.

Choose display types.

A CPU consists of these parts:

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