The document discusses the history of computers. It describes how ENIAC was the first general-purpose computer designed to calculate artillery firing tables for the US Army. It was seen as a "Giant Brain" and excited scientists with its programmability. The document also discusses how the transistor, introduced in 1948, was a seminal development as it served as the fundamental building block of modern electronics. Finally, the Altair 8800 microcomputer kit from 1975 unexpectedly sold thousands of units in the first month through hobbyist magazines, surprising its designers.

1. COMPUTER´S
HISTORY

3. FIRST SLIDE
Comventionally a computer consist of some
form of memory for data storage, at least one
element that carries out arithmetic and logic
operations, and sequencing and control
element thar can change the order oof
operations based on the information that is
stored.

5. SECOND SLIDE:
ENIAC was the first general-purpose computer.
ENIAC was designed to calculate artillery firing tables for the
United States Army´s Ballistic Research Laboratory. When
ENIAC was announced in 1946 it was heralded in the press
as a “Giant Brain”. This mathematical power, coupled with
genetal-porpuse programmability, excited scientists and
industrial. The inventors promoted the spread of these new
ideas by teaching a series of lectures on computer
architecture. The ENIAC´s desing and construction was
financed by the United States Army during World Wasr II.

7. THIRD SLIDE
A transistor (1948) is a semeconductor device used to amplify
electronic signals and power. It is composed of a semiconductor
material with at least three terminals for connnection to an external
circuit. A voltage or current applied to one pair of the transistor´s
terminal changes the current flowing through another pair of
terminals.
The transistors is the fundamental building block of modern
electronic devices, and is ubiquitous in modern electronic systems.
Following its relase in the early 1950s the transistor revolutionized
the field of electronic, and paved the way for smaller and cheaper
radios, calculators, and computers, among other things.

9. FOUR SLIDE
The Altair 8800 was a microcomputer desing
from 1975 based on the Intel 8080 CPU and
sold by mail order through advertisements in
Popular Electronic, Radio Electronics and
other hobbyist magazines. The desingners
hoped to sell only a few hundred build-it-
yourself kits to hobbyusts, were surprised
when they sold thousands in the first month.

10. FOUR SLIDE
The Altair 8800 was a microcomputer desing
from 1975 based on the Intel 8080 CPU and
sold by mail order through advertisements in
Popular Electronic, Radio Electronics and
other hobbyist magazines. The desingners
hoped to sell only a few hundred build-it-
yourself kits to hobbyusts, were surprised
when they sold thousands in the first month.