Page 85 - slides.dvi

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3.
4.
1.
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⇒
Operating
Block
Device
raw
OS
Unix
Systems
Network
ioctl
Character
varying
provide
—
libraries
I/O
Homogenising
and
I/O
(on
commands
commands
or
devices
Miscellaneous
generally
Classes
Devices
devices
enough
current
layered
device
(e.g.
Subsystem
(e.g.
memory-mapped
UNIX)
include
include
on
splits
API
(e.g.
file
from
time,
disk
file-system
top
clocks
Windows/NT
get,
covers
read,
to
block
devices
use
access
and
drives,
put
access
elapsed
odd
and
allow
keyboards,
completely
into
write,
CD):
socket
time,
not
timers)
line
possible
four
aspects
mice,
seek
of
timer
character
editing
serial
to
interface
possible
I/O
classes:
have
such
ports):
as
own
clocks
interface
and
timers.
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