13737000
Descrição
Mapa Mental por Casey Morris, atualizado more than 1 year ago
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Criado por Casey Morris
aproximadamente 6 anos atrás
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1.7 System Software
- System Software
- Type of software that
controls the computers
hardware. Provides an
interface between the
user of the computer
and the hardware.
- Type of software that
controls the computers
hardware. Provides an
interface between the
user of the computer
and the hardware.
- Operating System
- Basically a
system software.
Provides a virtual
machine.
- Basically a
system software.
Provides a virtual
machine.
- Processor Management
- The activity that has just been complete is similar to how
the processor has to divide its time between processes.
May allocate a small 'time slice' to each seperate process.
- The activity that has just been complete is similar to how
the processor has to divide its time between processes.
May allocate a small 'time slice' to each seperate process.
- User Interface
- Command Line Interface
- Text Based, e.g. Dos
- Text Based, e.g. Dos
- Graphical User Interface
- Contains windows,
icons, menus. Visual.
E.g. Windows 10
- Contains windows,
icons, menus. Visual.
E.g. Windows 10
- Command Line Interface
- Drivers
- A piece of
software user to
control a piece of
hardware.
- A piece of
software user to
control a piece of
hardware.
- Utility Programs
- Only designed to do
just one or two
tasks
- Inbuilt into the Operating System
- Anti-virus, disk
defragmentation,
file repair
- Only designed to do
just one or two
tasks
- Compression
- Reducing the size of the file by
performing an algorithm on the
original data
- Loessless
- The original file cant be
created as no data is
lost.
- The original file cant be
created as no data is
lost.
- Lossy
- Some of the original data is
lost and the original file can
not be re-created.
- Some of the original data is
lost and the original file can
not be re-created.
- Reducing the size of the file by
performing an algorithm on the
original data
- Backup Types
- Full
- A copy of all
data/software on the
hard disk drive is copied
to a backup medium
- A copy of all
data/software on the
hard disk drive is copied
to a backup medium
- Incremental
- A full backup is
made initally. Much
faster than a full
backup. Takes
longer to restore.
- A full backup is
made initally. Much
faster than a full
backup. Takes
longer to restore.
- Full
- Encryption Software
- To scramble data in a way that is
unreadable to anybody who doesn't
have a key to be able to
unscramble this
- To scramble data in a way that is
unreadable to anybody who doesn't
have a key to be able to
unscramble this
- Defragmentation Software
- When a hard disk drive is
new, files get onto the disk in
order. When deleted they
leave gaps. When new files
are saved, they fill the gaps
and become fragmented.
- When a hard disk drive is
new, files get onto the disk in
order. When deleted they
leave gaps. When new files
are saved, they fill the gaps
and become fragmented.
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