TDM Timeline of Computer History

Main

Pascalene

1642

Pascal invents the 1st accurate mechanical calculator

Jacquard loom

1801

Jacquard invents automated loom with punched cards to give instructions

Difference Engine

1822

Babbage designs steam-powered mechanical calculator

Analytical Engine

1834

Babbage designs it to solve any math problem

Hollerith Tabulating Machine

1890

Hollerith wins Census contest

IBM

1911

Hollerith sells his company and Watson renames it International Business Machines

Z1 calculator

1936

Zuse invents mechanical calculator with memory

Atanosoff-Berry computer

1939

ABC uses memory, binary system and vacuum tubes instead of mechanical switches

firing tables shortages

1943

Human "computers" cannot produce firing tables fast enough during WWII

Harvard Mark I

1944

US Navy uses Mark I

ENIAC

1944

Mockley develops Electronic Numerical Integrator And Computer

Transistors

1945

Smaller devices replace vacuum tubes

UNIVAC

1951

Mockley & Eckert create UNIVAC

Ike wins

1952

UNIVAC predicts Eisenhower victory with small percentage of votes counted

IBM 701

1953

IBM unveils computer popular with many businesses

Integrated Circuit

1959

small chip contains thousands of transistors

Lunar Landing

1969

each computer on lander and orbiter contains 5,000 integrated circuits

Microprocessor

1970

Ted Hoff at Intel develops model of microprocessor

Apollo 13

1970

guidance computer helps save stranded astronauts

Altair 8800

1975

Popular Electronics magazines sells 1st personal computer

Apple I

1976

Jobs & Wozniak create their PC

Apple II

1977

new model features ROM & floppy disk drive for games and other programs

Apple vs Competitors

1977

Commodore PET 2001 & Tandy RadioShack TRS-80 competes with Apple

Alto

1978

Xerox creates easy-to-use PC called Alto

MS-DOS

1980

Microsoft develops OS for IBM PC

Portable Computer

1981

Osborne develops 1st portable computer

IBM PC

1981

IBM releases its 1st personal computer

GUI

1983

Apple introduces graphical user interface (GUI) on Lisa, plus windows, icons, file system, & mouse

Compaq

1983

Compaq introduces its 1st portable computer

"Clone Wars"

1984

Other companies jump into booming PC market

Macintosh

1984

Macintosh adds 3.5-inch floppy disks to features of Lisa