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operating system
overview of computer system
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Cards (13)
computer - an
electronic device
that can be
programmed
to
accept
data
,
process
and
generate
result
computer
along with
additional hardware
and
software
is called computer system
user ->
input
->
software application
->
operating system
-> output
logical unit
- <, >, <=, >=, ==, !=
translator
- convert
source code
into
machine code
, convert code from
programming language
into
machine code
that can be executed by computer
type of translator -
compiler
,
assembler
,
interpreter
compiler - translate
high level instruction
into
object code
, example:
python
compiler
,
java
compiler
, translate
all at once
interpreter - translate
high level instruction
into
machine understandable
, example:
python
,
java,
translate
line
by line
assembler
- translate
low level instruction
into
machine understandable
, example: MASM (
microsoft marco assembler
), TASM (
turbo assembler
)
computer architecture
- a principle describing how
hardware
and
software
connect to make them
function
computer is used for
general purpose
; system is used for
specific
purpose
C (
common
), o (
operating
), m (
machine
), P (
particularly)
, u (
use for
), t (
trade
), e (
electronic
), r (
research
)
types of computer architecture -
john von-nuemann
architecture,
harvard
-
modified
architecture