-
Charles babbage
Analytical Engine
First automatic calculator
Based on Difference Engine
Never developed
Drawings and descriptions similar to today’s computers -
HERMAN HOLLERITH
U.S. Census Bureau: Tabulate census data
Automatically read data from punch cards
1896: Hollerith started the Tabulating Machine Company
Later became International Business Machines (IBM) -
Z1 COMPUTER
CREATED BY KONRAD
MECHANICAL CALCULATOR
1S PC TO INCLUDE CERTAIN FEATURES IN TODAYS SYSTEM SUCH AS CONTROL UNIT AND SEPERATE MEMORY FUNCTIONS -
ENIAC
CREATED BY JOHN W. MACHY & J.PRESPER ECKERT AT UNIVERSITY OF PENNSYLVANIA
1ST SUCCESSFUL DIGITAL PC
BIG & CLUMSY -
1ST GENERATION
Used vacuum tubes to store data -
NETSCAPE
PREDOMINANT PLAYER IN BROWSER SOFTWARE -
2N GENERATION
Used transistors to store data -
UNIVAC
1ST COMMERCIALLY DIGITAL PC
OPERATED ON MAGNETIC TAPE NOT PUNCH CARDS
FIRST GENERATION PC
LAST TO USE VACUUM TUBES TO STORE DATA
USED TO PREDICT THE OUTCOME O STEVENSON EISENHOWER PRESIDENTIAL RACE -
JACK KILBY
of texas insruments
creaed intergrated
smallchip containing thousands of transistors
enabled pcs to become smaller & lighter
3rd generation -
3RD GENERATION
Used integrated circuits -
Basic (beginners all purpose symbolic instruction code)
Fortan, Algol & cobol
used by businesses
used to create financial statistical & engineering
became key language for pc
creation of microsoft programs -
4TH GENERATION
Use microprocessor chip -
Altair Computer
Has no keyboard or monitor
Sold as a kit fo 395 o 498 for assembled unit
wasnt user friendly
computer boom
Bill gates & paul allen among first owners
wrote interpreter program & sold to altair -
steve jobs
wanted apple computer to be the perfect computer company
thought that apple is the perfect name for computer for nutrients
1 of the creators of apple -
BILL GATES
FOUNDER OF MICROSOFT -
Apple II
Built by steve jobs & steve wozniak
stored in rom
fesatured color monitor & game paddles & sound
4kb of ram
optional floppy disk to load programs -
WORDSTAR
1ST WORD PROCESSING APPLICATION -
VISICALC
1ST ELECTRONIC SPREADSHEET APPLICATION -
Osborne Computer
introuced first portable computer weighed 24.5lbs 5 inch screen
cost 1795
overnight success -
Introduction of the GUI
allowed easier interaction without pc
GuI not invented by cmputer company
apple was first company to take commercial advantage of GUI -
PAGEMAKER
1ST DESKTOP PUBLISHING SOFTWARE -
EXCEL
1 OF THE 1ST SPREADSHEETS TO USE A GRAPHICAL USER INTERFACE -
Mosaic
1st web browser
could display graphics as well a text
could view multimedia on web
caused internet traffic to increase by nearly 350%
