Download History of Operating Systems

By Tanner And Whitney
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The CPU of a
computer does
most of the work.
It changes
information it takes
out of the RAM
Uses input and
output devices or
software.
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It manages the
hardware and the
software resources
of the system.
The CPU is in
charge of
distributing
information.
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Single user-single
task
Single user-Multi
Tasks.
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The first computers were considered
calculating engines.
They did not run on Operating systems.
They ran slowly at took up entire rooms.
They needed a team to operate.
The calculating engines used vacuum tubes;
that were easy to burning out or break.
Plug boards were programs inserted in the
computer.
This took place most of the 1940’s-50’s
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Transistors were
made in the mid
50’s.
Punched cards were
used as programs
now.
They were inserted
into the computer;
but There were two
parts, an input, and
an output. Two
separate computers
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Mostly used for
scientific calculations
and physics.
Introduced the batch
system.
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The creation of the
system/360.
An operating system
was able to run both
numerical and
commercial
computing.
However, this
operating system had
to be useful on all
models of computers
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Integrated circuits
made it possible to
run faster and
reliably.
The system/360 took
thousands of
programmers and
had many bugs that
constantly needed
fixing. Even if it
introduced new bugs
in the system.
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The system/360
was equipped with
the power to run
the CPU almost
100% of the time
when previous
machines spent 8090% of their CPU
idle.
It was capable of
multi-programming
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There were so many
glitches. And every
new version came
with different bugs.
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CP/M stood for
Control Program for
Micro Computers.
designed as a file
manager. 8 Bit
TRS – DOS was
made by Radio
Shack in 1978.
Version one was a
for testing
purposes only.
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Version 2 of TRS
DOS was released
to the public.
Had terrible bugs.
The worst bug was
when it was written
to a full disk, it
destroyed the disk
in the process.
The Apple dos was a
Disk operating
system.
Wozniak Created the
Brilliant Floppy Disk
The Pascal Operating
System was used in
the apple 2.
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The Apple CP/M
operating system
was possible
because Microsoft
Z-80
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When apple 3 was
introduced in the
1980’s, the Apple
SOS operating
system was
released.
It stored the
operating system in
the memory as well.
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It used SOS
interpreter and SOS
drivers.
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Released in 1983
Had a sophisticated
hierarchy file
system.
Had support for 20
different file types.
Could have up to 8
files up at a time.
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Multiple logical
volumes on one
physical volume
The volume
directory was
limited to 51 files.
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Microcomputers were
born.
Windows 1.0 released
in November of 1985.
It had a user interface
that ran on MS-DOS.
Capable of running the
first version of paint,
notepad and a
calculator.
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More memory helped
the windows 2.1
system in 1988.
Capable of a
multitasking interface.
MS-DOS helped
connect software and
Hardware.
DOS was released
1981.
Windows 1.0 was
capable of using a
mouse.
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On May 22 1990,
windows 3.0 came
out.
With 3.1 released in
1992
Together they sold
10 million copies in
their first two years.
It came with
advanced graphics
with 16 colors.
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Games like solitaire,
minesweeper and
hearts become
standard with
windows 3.
In 1993, windows NT
was released after its
12 years of
development.
It had a 32 bit
processor capable of
helping business and
scientific needs.
With the release of windows 95, it sold 7
million in the first 5 weeks.
 Also around that time about 80% of the
worlds computers run on windows operating
systems or DOS.
 In the summer of 1995, Internet Explorer is
released.
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On June 25, 1998, a
new consumer
specific operating
system is released.
It supported
reading DVD discs
and USB
connections.
It was the Windows
OP to be based off
of MS -DOS
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Windows 2000 was
created
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First High programming language in 1960’s
Useful in multiple programming languages.
Was not successful at first.
To expensive and rushed.
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In 1968-69,
Kenneth
Thompson, Dennis
Ritchie/AT&T Bell
Labs made an
alternative form of
MULTICS called
UNIX.
Written in C, (which
was uncommon)
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Berkeley developed
a different version
of it. BSD.
Used for single
purpose-servers,
research and
hardware.
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In 1984, Richmond Stallman founded the
Fee Software Foundation.
He created his own version of UNIX that
could be freely distributed, and modified.
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Finland named
Linus Torvalds
created Linux
Combination of
UNIX operating
systems.
Released, August
25, 1991
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23 years Linux has
come a long way.