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Holes in Cards
These were pieces of paper that contained digital information that computers could access. They are not used today. -
The Analytical Machine
The Analytical Engine was the first mechanical computing device. It was the first design for a general-purpose computer that could be described as “turning-complete.” -
Von Neumann Architecture
It is a basic computer architecture that is still in use today. It gives a design for a digital computer that uses a lot of the hardware we use today. -
ENIAC, 1946
ENIAC was the first electronic computer which was ever built. -
UNIVAC
It was the United States’ first commercially available computer that anyone could buy. -
High-Level Programming Language
This has a higher level of abstraction from machine language. It focuses on “usability” over efficiency. -
UNIX Operating System
It was an early operating system developed at AT&T Bell Labs. -
PC
The letters PC stand for Personal Computer. The first personal computer was called the Kenbak-1. -
Altair
It was a microcomputer that sold thousands of models in the first few months. -
CRAY-1
The Cray-1 was a supercomputer installed at Los Alamos National Labs. It was a supercomputer that is now one of the best known and most successful. -
Apple
Apple is a company that makes computers and their own operating system. They are Windows main competitors. -
First Electronic Spreadsheet
Visicalc was the first electronic spreadsheet. It was used on a microcomputer. -
Macintosh
The Macintosh is a personal computer developed by Apple. -
Windows
Windows is an operating system created by Microsoft which is used on most PC’s today.
