1. Visual Communications
Computers

2. Charles Babbage The analytical engine First described in 1837
Worked on until his death in 1871
Never really built
Mechanical
Essentially a “modern design” in that it used algorithms

3. Herman Hollerith Statistical tabulator
Electrical device for completing calculations
1889
Hollerith combined his company with three others to form a company called the Computing Tabulating Recording Company
Became IBM

4. ENIAC Electronic Numerator Integrator and Comparator
Electronic computer using vacuum tubes
Designed to calculate artillery trajectories
1946

5. ENIAC

6. UNIVAC Universal Automatic Computer Designed for business applications
Used by the U.S. Census Bureau
1950

7. UNIVAC

8. First personal computer
“SIMON”

9. ALTAIR 8800

10. ALTAIR 8800
Introduced in 1975
A kit computer designed to be assembled by hobbyists
Used BASIC computer language
ALTAIR BASIC was designed by Bill Gates and included with the machine

11. MICROSOFT
Gates left Harvard to found Microsoft based on the success of BASIC
Personal Computer Disk Operating System (PC-DOS) brought real success to Microsoft
DOS allowed average users to operate the computer without knowing programming language

12. APPLE Steve Jobs, Steve Wozniak and Ronald Wayne Founded in 1976
Incorporated the graphical user interface (GUI)

13. APPLE