7th Meeting

parisfawnΤεχνίτη Νοημοσύνη και Ρομποτική

17 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

98 εμφανίσεις


7th Meeting


TYPE

and

CLICK

Keyboard



Keyboard,

as

a

medium

of

interaction

between

user

and

machine
.

Is

a

board

consisting

of

the

keys

to

type

a

sentence

and

other

special

symbols

on

the

computer
.



In

computing
,

a

keyboard

is

typewriter

keyboard
,

which

uses

an

arrangement

of

buttons

or

keys
,

to

act

as

mechanical

levers

or

electronic

switches
.

After

punch

cards

and

paper

tape,

interaction

via

teletype
-
style

keyboards

became

the

main

input

device

for

computers
.

Despite

the

development

of

alternative

input

devices,

such

as

the

mouse

(computing

mouse),

touch

sensitive

screens,

pen

devices,

character

recognition,

voice

recognition,

and

improvements

in

computer

speed

and

memory

size,

the

keyboard

remains

the

most

commonly

used

and

most

important

device

used

for

direct

(human)

input

into

computers
.


A

keyboard

typically

has

characters

engraved

or

printed

on

the

keys

and

each

press

of

a

key

typically

corresponds

to

a

single

written

symbol
.

However,

to

produce

some

symbols

requires

pressing

and

holding

several

keys

simultaneously

or

in

sequence
.

While

most

keyboard

keys

produce

letters
,

numbers

or

signs

(
characters
),

other

keys

or

simultaneous

key

presses

can

produce

actions

or

computer

commands
.

In

normal

usage,

the

keyboard

is

used

to

type

text

and

numbers

into

a

word

processor
,

text

editor

or

other

program
.

In

a

modern

computer,

the

interpretation

of

key

presses

is

generally

left

to

the

software
.

A

computer

keyboard

distinguishes

each

physical

key

from

every

other

and

reports

all

key

presses

to

the

controlling

software
.

Keyboards

are

also

used

for

computer

gaming,

either

with

regular

keyboards

or

by

using

keyboards

with

special

gaming

features,

which

can

expedite

frequently

used

keystroke

combinations
.

A

keyboard

is

also

used

to

give

commands

to

the

operating

system

of

a

computer,

such

as

Windows
'

Control
-
Alt
-
Delete

combination,

which

brings

up

a

task

window

or

shuts

down

the

machine
.

It

is

the

only

way

to

enter

commands

on

a

command
-
line

interface

Shape The Keyboard

Qwerty




Virtual






Shape membrane


Shape
Chiclet





Mouse




used

to

enter

data

into

a

computer

other

than

the

keyboard
.

“Mouse

was

named

because

the

shaped

like

rats

.





In

computing
,

a

mouse

is

a

pointing

device

that

functions

by

detecting

two
-
dimensional

motion

relative

to

its

supporting

surface
.

Physically,

a

mouse

consists

of

an

object

held

under

one

of

the

user's

hands,

with

one

or

more

buttons
.

(Although

traditionally

a

button

is

typically

round

or

square,

modern

mice

have

spring
-
loaded

regions

of

their

top

surface

that

operate

switches

when

pressed

down

lightly
.
)

It

sometimes

features

other

elements,

such

as

"wheels",

which

allow

the

user

to

perform

various

system
-
dependent

operations,

or

extra

buttons

or

features

that

can

add

more

control

or

dimensional

input
.

The

mouse's

motion

typically

translates

into

the

motion

of

a

cursor

on

a

display
,

which

allows

for

fine

control

of

a

graphical

user

interface
.


PHOTO DESIGN ON HIS PATENT IN 1974 BY
ENGELBART


ALONG

WITH

THE

DEVELOPMENT

OF

TECHNOLOGY,

DISCOVERY

MOUSE

WITH

A

NEW

VERSION,

CALLED

TRACKBALL
.







Fill in the gaps with verbs from the list!


Click Drag Select


Double
-
click Grab Move Control


A

mouse

allows

you

to

(
1
)
...........
the

cursor

and

move

around

the

screen

very

quickly
.

Making

the

same

movements

with

the

arrow

keys

on

the

wwould

take

much

longer
.

As

if

you

(
2
)
........
the

mouse

on

your

desk,

the

pointer

on

the

screen

moves

in

the

same

direction
.

The

pointer

usually

looks

like

an

l
-
bar,

an

arrow

or

a

pointing

hand

depending

on

whay

you

are

doing
.


A

mouse

has

one

or

more

buttons

to

communicate

with

the

computer
.

For

example,

if

you

want

to

place

the

insertion

point

or

choose

a

menu

option,

you

just

(
3
)
.......

(press

and

release)

on

the

mouse

button,

and

the

option

is

choosen
.


The

mouse

is

used

to

(
4
)
........
text

and

items

on

the

screen
.

You

can

highlight

text

to

be

deleted,

or

you

can

select

an

itemfrom

a

check
-
box

or

questionnaire
.


The

mouse

is

widely

used

in

graphics

and

design

.

When

you

want

to

move

an

image

,

you

position

the

pointer

on

the

object

you

want

to

move,

press

the

mouse

button,

and

(
5
)

.......

the

image

to

a

new

location

on

the

screen
.

Similarly,

the

mouse

is

used

to

change

(
6
)
.......
on

corner

of

the

square

and

stretch

it

into

a

rectangle
.


The

mouse

is

also

used

to

start

a

program

or

open

a

document
:

you

put

the

pointer

on

the

file

name

and

(
7
)
........
on

the

name
-
that

is,

you

rapidly

press

and

release

the

mouse

button

twice
.