1. First Generation Computers
By: Alexandra Smith and Taylor Foster

2. Early History…
1837 Charles Babbage described, digital computer called the analytical engine
Thomas Fowler demonstrated a primitive wooden computer using sliding rods in 1841.
1941 German engineer Konrad Zuse Z3
-airplanes and missiles
In 1943, British
-secret code breaking computer called Colossus

3. analytical engine
Colossus Z3

4. Electronic Numerical Integrator and Calculator (ENIC)
ENIC, was designed during WWII
University of Pennsylvania, to compute ballistics tables for the army
Room sized, with 18,000 vacuum tubes, was finished too late
Didn’t have a program stored in memory that could be easily changed.

5. ENIC

6. “Stored Program” breakthrough
June 21, 1948
University of Manchester
- “The Baby” (Test computer) no longer exists
1949, true computers began to appear.
-The Johnniac, one of the first gen. named for John Von Neumann
Important role in the invention of the modern “stored program” computer

7. Johnniac

8. Facts Slow Gradually evolved
The First gen. started in 1946 (ENIAC) Or 1949 EDSAC
1958 2,500 First gen. installed

9. What is the first generation computer?
A computer from the earliest stage of computer development, ending in the early 1960s, characterized by the use of vacuum tubes, the performance of one operation at a time in strictly sequential fashion, and elementary software, usually including a program loader, simple utility routines, and an assembler to assist in program writing.

10. Timeline
1942
ABC Atanasoff-Berry Computer binary vacuum tubes capacitors
1944
Collosus
1946
ENIAC Electronic Numerical Integrator And Computer decimal vacuum tubes vacuum tubes
1947
EDVAC Electronic Discrete Variable Automatic Computer binary vacuum tubes mercury delay lines
1948
The Baby Manchester Small Scale Experimental Machine binary vacuum tubes CRST
1949
UNIVAC I Universal Automatic Computer decimal vacuum tubes mercury delay lines
EDSAC Electronic Delay Storage Automatic Computer binary vacuum tubes mercury delay lines
1952
IAS Institute for Advanced Study binary vacuum tubes cathode ray tubes
1953
IBM 701 binary vacuum tubes mercury delay lines