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Charless Babbage
Charles Babbage, FRS was an English polymath. He was a mathematician, philosopher, inventor and mechanical engineer, who is best remembered now for originating the concept of a programmable computer. -
Herman Hollerith
was an American statistician and inventor who developed a mechanical tabulator based on punched cards to rapidly tabulate statistics from millions of pieces of data. He was the founder of the Tabulating Machine Company that later merged to become IBM. Hollerith is widely regarded as the father of modern machine data processing.[1] With his invention of the punched card evaluating machine the beginning of the era of automatic data processing systems was marked. -
Jack Kilby
Jack St. Clair 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 a mechanical computer designed by Konrad Zuse from 1935 to 1936 and built by him from 1936 to 1938. It was a binary electrically driven mechanical calculator with limited programmability, reading instructions from punched tape.
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. -
1st generation computer
uring the period of 1940 to 1956 first generation of computers were developed. The first generation computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. The vacuum tube was developed by Lee DeForest. A vacuum tube is a device generally used to amplify a signal by controlling the movement of electrons in an evacuated space. First generation computers were very expensive to operate and in addition to using a great deal of electri -
Univac
UNIVAC is the name of a line of electronic digital stored-program computers starting with the products of the Eckert-Mauchly Computer Corporation. Later the name was applied to a division of the Remington Rand company and successor organizations. UNIVAC is an acronym for UNIVersal Automatic Computer. -
Eniac
Electronic Numerical Integrator And Computer 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". it was heralded in the press as a "Giant Brain". It had a speed of one thousand times that of electro-mechanical machines. This computational power, coupled with general-purpose programmability, excited scientists and industrialists. -
2nd generation computers
A transistor computer is a computer which uses discrete transistors instead of vacuum tubes. The "first generation" of electronic computers used vacuum tubes, which generated large amounts of heat, were bulky, and were unreliable. A "second generation" of computers, through the late 1950s and 1960s featured boards filled with individual transistors and magnetic memory cores. These machines remained the mainstream design into the late 1960s, when integrated circuits started appearing and led to t -
Steve Jobs
was an American entrepreneur,[5] marketer,[6] and inventor,[7] who was the co-founder, chairman, and CEO of Apple Inc. Through Apple, he is widely recognized as a charismatic and design-driven pioneer of the personal computer revolution[8][9] and for his influential career in the computer and consumer electronics fields, transforming "one industry after another, from computers and smartphones to music and movies." -
Bill Gates
is an American business magnate, philanthropist, investor, computer programmer, and inventor.[2][3][4] Gates is the former chief executive and chairman of Microsoft, the world’s largest personal-computer software company, which he co-founded with Paul Allen. -
BASIC
BASIC (an acronym for Beginner's All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages whose design philosophy emphasizes ease of use. In 1964, John G. Kemeny and Thomas E. Kurtz designed the original BASIC language at Dartmouth College in New Hampshire. They wanted to enable students in fields other than science and mathematics to use computers. At the time, nearly all use of computers required writing custom software, which was something only -
3td generation computers
The development of the integrated circuit was the hallmark of the third generation of computers. Transistors were miniaturized and placed on silicon chips, called semiconductors, which drastically increased the speed and efficiency of computers. -
4th generation computers
emerged with development of the VLSI.With the help of VLSI technology microprocessor came into existence. The computers were designed by using microprocessor, 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. The fourth generation computers became more powerful, compact, reliable and affordable. -
altair computer
The Altair 8800 from Micro Instrumentation Telemetry Systems (MITS) of Albuquerque, NM, is considered by many to be the first "personal computer" - a computer that is easily affordable and obtainable. -
apple II
is a set of home computers, one of the first highly successful mass-produced microcomputer products,[1] designed primarily by Steve Wozniak.The original Apple II operating system was in ROM along with Integer BASIC. the Apple II was among the first successful personal computers. -
WordStar
WordStar is a word processor application that had a dominant market share during the early- to mid-1980s.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 -
Visicals
VisiCalc was the first spreadsheet computer program, originally released for the Apple II. It is often considered the application that turned the microcomputer from a hobby for computer enthusiasts into a serious business tool, and is considered the Apple II's killer app. VisiCalc sold over 700,000 copies in six years, and as many as 1 million copies over its history. -
osborn computer
The Osborne Computer Corporation was a pioneering maker of portable computers.After Adam Osborne sold his computer book-publishing company to McGraw-Hill in 1979, he decided to sell an inexpensive portable computer with bundled software and hired Lee Felsenstein to design it. The resulting Osborne 1 featured a 5 inch (127 mm) 52-column display, two floppy-disk drives, a Z80 microprocessor, 64k of RAM, and could fit under an airplane seat. It could survive being accidentally dropped and included -
exel
is a freeware program for viewing and printing spreadsheet documents created by Excel -
PageMaker
As an application relying on a graphical user interface, PageMaker helped to popularize the Macintosh platform and the Windows environment. -
mosaic
NCSA Mosaic, or simply Mosaic, is the web browser credited with popularizing the World Wide Web. It was also a client for earlier protocols such as FTP, NNTP, and gopher. The browser was named for its support of multiple internet protocols.[3] Its intuitive interface, reliability, Windows port and simple installation all contributed to its popularity within the web, as well as on Microsoft operating systems.[4] Mosaic was also the first browser to display images inline with text instead of displ -
netscape
Netscape is credited with developing the Secure Sockets Layer Protocol (SSL) for securing online communication, which is still widely used,[3] as well as JavaScript, the most widely used language for client-side scripting of web pages. -
Introduction of the GUI
A GUI is a type of computer human interface on a computer. It solves the blank screen problem that confronted early computer users . These early users sat down in front of a computer and faced a blank screen, with only a prompt. The computer gave the user no indication what the user was to do next. GUI are an attempt to solve this blank screen problem.
At a conceptual level, a computer human interface is a "means by which people and computers communicate with each other"
