Digital Technology/I.T

Computers are a ____ within an ____ system

Hardware, i.t

I.t systems can be used in a variety of ____

Environments

I.t systems are used in fields such as ____, medicine, etc

Communication

I.t systems typically get tasks done ____ and process more ____

Faster, information

Data is information without ____

Context

Data needs to be ____ in order to be understood

Structured

Information is ____ that has been structured and makes ____

Data, sense

Input devices collect data ____

Automatically

Data is collected into a ____ for ____

Database, processing

____ are a common way of collecting data

Spreadsheets

I.t systems take inputs like ____and process them, creating an ____

Instructions, output

Validation is an ____ check to see if data input is ____

Automatic, reasonable

Check digit validation checks the last ____ to make sure the other digits are ____; used for ____ codes

Number, correct, bar

A format check checks that ____ is in the right ____

Data, format

A length check checks if the data is too ____ or short

Long

A lookup table validation makes sure that the ____ input fits the accepted ____; for example, 7 days in a week

Data, value

A presence check makes sure data has actually been ____

Entered

A range check makes sure that the ____ input fits the specified ____

Data, range

Verification makes sure data is ____ over from one ____ to another correctly

Copied, medium

Double entry verification means you type the data ____, identically

Twice

Proofreading verification means you ____ read the two copies of data to find any ____

Manually, errors

Requirements for a client-based email include a c____, internet ____, an account with an ____ and an email ____

Computer, connection, ISP, application

ISP stands for ____

Internet service provider

Most ISP’s give a ____ fee for ____ connections

Monthly, broadband

Many email services give the ability to ____ suspected ____ mail

Filter, spam

Webmail requirements include a c____, an ____ connection, and an internet ____

Computer, internet, browser

Webmail services usually offer ____ accounts like Gmail

Free

Webmail can send emails from any ____ with a connection and ____

Device, browser

Spreadsheets are a grid with each row assigned a ____ and each column a ____

Number, letter

The squares in a spreadsheet are called ____

Cells

In a spreadsheet, the ____ function adds all the ____ together; to add all the numbers from cell E1 to E7, the sum would be ____

Sum, values, =SUM(E1:E7)

Sensors continuously collect ____

Data

Sensors are part of a ____ cycle

Feedback

Sensors are linked to a ____ program

Control

A control ____ decides what action to carry out based on ____ data

Program, sensor

LOGO is a simple computer coding ____

Language

LOGO language is used to ____ something on-____

Control, screen

(LOGO language)

move forward 50 steps = ____

move backward 50 steps = ____

turn 90 degrees left = ____

FORWARD50, BACK50, LEFT90

A system flowchart is a ____ representation of processes, d____, inputs and o____

Visual, decisions, outputs

What does this represent in a flowchart?

Start or end

What does this represent in a flowchart?

Direction

What does this represent in a flowchart?

Input or output

What does this represent in a flowchart?

Process

What does this represent in a flowchart?

Desicions

Sensors send ____ to an ____ box

Signals, interface

An interface ____ converts data from ____ to digital

Box, analogue

Computers that log data take ____ at regular ____

Readings, intervals

A logging period is the ____ time of which readings are taken

Total

Remote data logging is collecting data and ____ it to be ____ later

Storing, downloaded

Viruses are ____ that cause computer issues

Programs

Viruses are usually hard to notice unless the computer has an ____ software

Anti-virus

ROM stands for ____

Read only memory

Memory from a ____ cannot be changed by a ____ or a user

Rom, program

Rom keeps its memory when the computer is ____

Off

RAM stands for ____

Random access memory

Ram is a fast and ____ storage type

Temporary

Ram memory is ____ when the computer is turned off

Lost

Storage sizes in order:

Bits, b____, kilobytes, m____, gigabytes, t____

Bytes, megabytes, terabytes

CD stands for ____

Compact disc

Cds can store up to ____ of data

700mb

DVD stands for ____

Digital versatile disc

DVDs can store up to ____

4.7gb

Sensors measure ____ quantities and send signals to a ____

Physical, processor

ADC stands for ____

Analogue to digital convertor

A feedback cycle contains a ____ program which carries out an action if a specific ____ is met

Control, requirement

HTML stands for ____

Hyper text markup language

Html is a basic programming language for web ____

Pages

In a plain text ____ (like Notepad), everything is hand-____

Editor, typed

WYSIWYG stands for ____

What you see is what you get

In a WYSIWYG editor (like Dreamweaver), code is pre-____ and the page layout can be ____

Written, designed

Bitmap graphics are made with ____, and each one is able to be edited

Pixels

Bitmap images usually have a ____ file size, and lose ____ when resized

Large, quality

Vector graphics are made with vector ____

Paths

Vector images have a ____ file size and don’t lose quality when ____

Small, resized

LAN stands for ____

Local area network

Lans cover ____ areas

Small

WAN stands for ____

Wide area network

Wans cover ____ areas and are usually made up of several ____ working together

Large, lans

The internet is a ____

Wan

A bus network has several workstations connected to a ____ through one ____

Server, cable

Bus networks are ____ to install

Cheap

If the cable in a ____ network fails, the whole network will ____

Bus, fail

In a ring network, each ____ is connected to ____ others in rotation

Device, two

Ring networks transfer data ____

Quickly

In a ring network, data flows in one ____, so there are no data ____

Direction, collisions

In a ____ network, one device failing will make all the others fail too

Ring

In a star network, each ____ is connected to a ____ through its own ____

Device, hub, cable

In a star network, if one fails, the others ____

Won’t

Star networks are ____ to install

Expensive

The internet is a ____ system of ____ networks

Worldwide, interconnected

WWW stands for ____

World wide web

WWW is part of the internet you can access with a web ____

Browser

WWW consists of web ____ that host ____

Servers, websites

Websites consist of web ____

Pages

URL stands for ____

Uniform resource locator

HTTP stands for ____

Hypertext transfer protocol

HTTPS is a ____ version of HTTP, so any data given or ____ is safe

Secure, received

An intranet is a network similar to the ____, but only available to an ____

Internet, organisation

ISP stands for ____

Internet service provider

An isp gives access to the ____

Internet