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Computer History

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by

Grant D

on 17 February 2015

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Transcript of Computer History

Release Date: April 11th 1976
Apple-1
Release Date: 1977
This "Supercomputer" was known as one of the most successful in its history. It was made to provide very fast computing and provide easy storage and reading of data through the professional workplace.
Cray-1A
Release Date: 1973
Composed of thin and flexible magnetic storage, this was a main form of media storage from the mid 70's to the 2000's.

This form of storage went completely extinct in 2010.

The largest amount a Floppy drive can hold is a whopping 1.44 MB in the 3.5 inch model.
Floppy Disk
By Grant
Release Date: August 1966 (-1975)
Computer History
This digital computer was used on every Apollo command Module and Lunar Module that helped send humans to the moon.
Apollo Guidance Computer
Windows 1.0
Release date: 1985
This was the first operating system created by windows, that made the first step to where we are today with windows 10.

It was closed source and was succeeded by windows 2.0 in 1987.
Price:
$666.66

Specifications:
4kb of ram expandable to 8kb and 48 kb
MOS 6502 1MHz CPU
This was the first invention that
started the revolution of Apple computers
When buying this computer the user needed buy the case, power supply transformers, power switch, ASCII keyboard, and video display.
In October 2014, a working, early Apple 1 was sold at auction for $905,000
This revolutionary machine was one of the first computers that were meant for the consumer as a home personal computer.
Created by Seymour Cray
Used integrated circuits
to allow it to run high-
speed applications.
It weighed 5.5 tons and
consumed 115 kW of power
They came in sizes of 8, 5 1/4,
and 3 1/2 inch
It used 55W and weighed 70 pounds, and a frequency of 2.048 MHz.
Initially had 12 kilowords
of fixed memory.
(0.00458 Mb)
The system requirements were 256 KB of memory or greater, and two double-sided disk drives or hard drive.
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