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Charles Babbage
He was a mathematician, philosopher, inventor and mechanical engineer, who is best remembered now for originating the concept of a programmable computer -
Herman Hollerith
developed a mechanical tabulator based on punched cards to rapidly tabulate statistics from millions of pieces of data -
Jack Kilby
was an American electrical engineer who took part in the realization of the first integrated circuit while working at Texas Instruments in 1958. He was awarded the Nobel Prize in physics on December 10, 2000 -
Z1 computer
The Z1 was the first freely programmable computer in the world which used Boolean logic and binary floating point numbers, however it was unreliable in operation
Destoryed in berlin during WW2 a long with all plans -
1st Gen computers
the first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions. -
Univac
was the first general-purpose computer for commercial use -
Eniac
ENIAC was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve "a large class of numerical problems
Made for artillery firing tables -
Steve Jobs
Creator of Apple -
Bill Gates
Creator of Microsoft -
2nd gen Computers
Second-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages, which allowed programmers to specify instructions in words. High-level programming languages were also being developed at this time, such as early versions of COBOL and FORTRAN. These were also the first computers that stored their instructions in their memory, which moved from a magnetic drum to magnetic core technology. -
BASIC
Programming langauge for beginning students to create software -
3rd gen Computer
keyboards and monitors and interfaced with an operating system, which allowed the device to run many different applications at one time with a central program that monitored the memory. Computers for the first time became accessible to a mass audience because they were smaller and cheaper than their predecessors. -
GUI
Graphical User Interface
allows interaction with electronics -
Altair Computer
No key board or monitor
Entered information of 1s and 0s
Only 256 bytes -
Apple 2
First color screen
Floppy disk
4 KB of RAM -
Excel
.The first version of Excel was released in 1985 for Mac. Later in November 1987, the first Windows version was released -
wordstar
WordStar was deliberately written to make as few assumptions about the underlying system as possible, allowing it to be easily ported across the many platforms that proliferated in the early 1980s -
Osborne Computer
First portable computer
5 Inch screen
25 pounds
2 floppy disks -
MOSAIC
Discontinued in 1997
First browser in have pictures inline with text
Google Chrome, fire fix, and safarai all have characteristics of MOSAIC -
1860
developed a mechanical tabulator based on punched cards to rapidly tabulate statistics from millions of pieces of data. -
4th gen Computer
The microprocessor brought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip. What in the first generation filled an entire room could now fit in the palm of the hand.