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operating software system (some operating systems (operation of defination…
operating software system
some operating systems
MS-DOS and windows
google chrome OS
ios (iphone/ipad
linix
os X (apple macs)
android os
operation of defination
function of an operating system
provides a user interface
manages
peripherals - not with the CPU
files
multitasking
user access rights
memory
wimp interface
windows is a WIMP user interface
WIMP stands for : windows, icons means and pointer
command line interface
no graphics
all user commands must be typed in as text
voice activated
real time
sensors detect inputs, actuators output actions
interrupts
are signals sent to teh CPU by externla devices to indicate an event that need immediate attention
a device driver
is a program hat controls a peripheral device such as a printer, VDU, CD-ROM drive. ECT
the computer can send data 1000 of times faster than a computer can print
the operating system organsise
the operating