-
Charles Babbage
-designed the first automatic calculator
-based off the Difference engine, a steam powered mechanical calculator
-regarded as the "Father of Computing" -
Period: to
Major Events of Computer History
-
Herman Hollerith
-creator of the Hollerith Tabulation Machine
applied the punch card concept to the Hollerith Tabulation machine which read census data
-started own company which later became IBM
-IBM is now the second largest employer in the world -
Z1 Computer
-Mechanical calculator
-thought to be the first computer to include certain features integral to today's systems us as control unit and separate memory functions -
ENIAC
-stands for Electronic Numerical Integrator and Computer
-US gov sponsored maching developed to calculate the settings used for weapons
-Created by John W. Mauchly and J. Presper Eckert at the University of Pennsylvania
- storage space needed was 1,800 square feet -
Period: to
1st GenerationComputers
period from 1944-1951
-includesthe ENIAC, UNIVAC
-last computers to use vacuum tubes for data storage
- had front panel switches -
UNIVAC
-stands for Universal Automatic Computer
- first successful commercial digital computer
-used magnetic tape for data storage
-was first intended for the Bureau of the Census -
Period: to
2nd Generation Computers
Period lasting from 1951-1958
-used transistors which replaced the vacuum tubes
-computers were being made smaller but had a limit
-started using magnetic core storage -
Jack Kilby
-invented the worlds first intergrated circuit
-small capable of containing thousands of transistors
-enabling computers to become smaller and lighter -
Period: to
3rd Generation Computers
-began using early integrated-circuits
- computers were now able to run different programs on the same computer -
BASIC
-stands for Beginners All Purpose Symbolic Instruction Code
-programming students could easily learn
-used to write the program for Altair -
Period: to
4th Generation Computers
-began using microprocessingchips
-introduced by Intel Corp in 1971
-Intel i7 is one of the most powerful processors
- first personal computer was introduced in 1981 by IBM -
Altair Computer
-First personal computer available to the public.
- Starting cost of $395
-No monitor or keyboard
-Storage options: Cassette Tape,Paper Tape, or floppy drive -
Bill Gates
-wrote the program for the Altair
-co-founded Microsoft -
Steve Jobs
-worked with Steve Wozniak on computer designs to design the Apple I
- created the Macintosh
-worked for Atari before leaving to co-found the company "Apple" -
Apple II
-Included color monitor, sound, game paddles,
-Biggest innovation was operation system stored in ROM
-Had Expansion Slots, at this time no other computers offered this. -
Visicalc
- the first electronic spreadsheet application -originally released for the Apple II
-
WordStar
-first word processing application
-became available in 1979 for PCs
-was first written for PC/M computers -
Osbourne Computer
-First Portable Computer
-5 inche Screen, weighed 24.5 Pounds
-Pre inStalled with Spreadsheet and word software
- Could easily unplug and attach keyboard for travel -
PageMaker
-first desktop publishing software
-was released first for Macintosh then for the IBM PC
-succeeded by InDesign in 2004 -
Excel
-one of the first spreadsheets to use a GUI
used for calculation, graphing tools and more
-replaed Lotus 1-2-3 as the industry standard -
MOSAIC
-first web browser
-allowed users to view multimedia on the web
-caused internet traffic to go up by 350% -
Netscape
-First internet web browser
- credited with the creation of the SSL
- also credtedwith the first use of JavaScript