8696364
Descrição
Mapa Mental por Matthew Stentiford, atualizado more than 1 year ago
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Criado por Matthew Stentiford
mais de 7 anos atrás
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Human-computer interface
- Interfaces
- Command line interface
- User types instructions
using special set of
words/symbols
- Used in the early
stages of computing
- only suitable for skilled
ICT users as instructions
must be known
- only suitable for skilled
ICT users as instructions
must be known
- quick exercution
- User types instructions
using special set of
words/symbols
- Menu-driven interface
- Menu of options
displayed for the
user to choose from
- simple and user-friendly
as the options do not
have to be remembered
- simple
- Menu of options
displayed for the
user to choose from
- Graphical user interface
- Small pictures (icons)
used to represent
availble options
- Microsoft windows
- Microsoft windows
- low level ICT
- Small pictures (icons)
used to represent
availble options
- Voice interface
- Microphone used
to speak
commands into
the computer
- analyses voice
patterns and
complies to
instructions
- analyses voice
patterns and
complies to
instructions
- disablities
- Microphone used
to speak
commands into
the computer
- Special devices
- for the
disabled/children
- concept
keyboards/touch
sensitive
screens/puff-suck
switches
- concept
keyboards/touch
sensitive
screens/puff-suck
switches
- for the
disabled/children
- Command line interface
- Other systems
- on-screen help
- context related help
- old verions had annoying
pop up context sensitive
hep which was often turned
off
- context related help
- EPOS interface
- Data input through
barcode reader
- data pops up on
screen and reciept is
printed
- data pops up on
screen and reciept is
printed
- Data input through
barcode reader
- Biometric
- use physical
factors such
as fingerprints
- high level of
security but
very expensive
- analyses features
to see if they
match your
features
- analyses features
to see if they
match your
features
- high level of
security but
very expensive
- use physical
factors such
as fingerprints
- Computer software
- program is a set of
instructions thta
tells the computer
what to do
- systems software =
programs that help the
computer system work
- Applications software =
programs that perform special
tasks/used for general purpose
task (word processing)
- Applications software =
programs that perform special
tasks/used for general purpose
task (word processing)
- systems software =
programs that help the
computer system work
- program is a set of
instructions thta
tells the computer
what to do
- on-screen help
- Operating Systems
- Loads and runs programs
- maximises use of memory (RAM)
- handles inputs and outputs
- deals with interuptions
- maintains system security
- maintains system security
- deals with interuptions
- handles inputs and outputs
- maximises use of memory (RAM)
- single-program systems
- runs one program at a time, slow
- Batch-processing systems
- program with data needed = job
- jobs are queued and are
all processed together
- used when there is no
urgency for the job to
be done
- can be done at off-peak
times/no human
intervention needed
- can be done at off-peak
times/no human
intervention needed
- used when there is no
urgency for the job to
be done
- jobs are queued and are
all processed together
- Multi-programming systems
- Computer holds more than one
program in its memory and gives
each one a smal amount o processing
in turn that makes it look like they
are being processed all together
- more programs are
processed in less time
- more programs are
processed in less time
- Multi-access
- Mainframe computer has
workstations spread out along
differnt floors and levels
- workstations connect
interactively, each
program is processed
quickly and given the
right resources
- Distributed systems
- processes and resources shared
among connected computers
- real time systems
- Data processed as soon as inputted
- sensors used to give data
which is immediately
processed and will take
action if needed
- Reacts fast to
situations such
as fires or flight
simulators
- Reacts fast to
situations such
as fires or flight
simulators
- sensors used to give data
which is immediately
processed and will take
action if needed
- Real-time transaction processing
- item sold or booking made the
data is processed immediately to
take of stock record or add to
database
- Parallel-processing systems
- large mainframes have more
than one processor to speed up
process time as large amounts
of data come in at all times
- Interactive systems
- ATM requires the user to tell
the computer what to do
- Systems security
- single user systems = protecting files of data
- multi user systems = checks every username and password
- keeps log of computer usage
- backs up data
- backs up data
- time/date of last time files were changed
- sets files to read only
- deleted files are put in recycling bin
- can recover accidentaly deleted data
- can recover accidentaly deleted data
- deleted files are put in recycling bin
- sets files to read only
- keeps log of computer usage
- multi user systems = checks every username and password
- single user systems = protecting files of data
- ATM requires the user to tell
the computer what to do
- large mainframes have more
than one processor to speed up
process time as large amounts
of data come in at all times
- item sold or booking made the
data is processed immediately to
take of stock record or add to
database
- Data processed as soon as inputted
- processes and resources shared
among connected computers
- Mainframe computer has
workstations spread out along
differnt floors and levels
- Computer holds more than one
program in its memory and gives
each one a smal amount o processing
in turn that makes it look like they
are being processed all together
- program with data needed = job
- runs one program at a time, slow
- Loads and runs programs
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