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Computer History

This category includes questions and answers about the history of the computer. Ask questions about the first computer and major developments in computing.

5,564 Questions

When was the abacus developed?

It is difficult to imagine counting without numbers, but there was a time when written numbers did not exist.

The earliest counting device was the human hand and its fingers.

Then, as larger quantities (larger than ten human-fingers could represent) were counted, various natural items like pebbles and twigs were used to help count.

Merchants who traded goods not only needed a way to count goods they bought and sold, but also to calculate the cost of those goods. Until numbers were invented, counting devices were used to make everyday calculations. The abacus is one of many counting devices invented to help count large numbers.

The more affluent people, could afford small wooden tables having raised borders that were filled with sand (usually coloured blue or green).

A benefit of these counting boards on tables, was that they could be moved without disturbing the calculation- the table could be picked up and carried indoors.

With the need for portable devices, wooden boards with grooves carved into the surface were then created and wooden markers (small discs) were used as place-holders. The wooden boards then gave way to even more more durable materials like marble and metal (bronze) used with stone or metal markers.

Who invented the small computer?

This is usually credited to Ted Hoff for the Intel 4004.

However a secret military microcomputer for the F-14 fighter predates his work by roughly 3 years. It was not declassified until the late 1980s. It does not have a single identified inventor as it was a team project.

Why is the internet so popular?

The internet has grown so popular as it is easy to use and you can find virtually every piece of information on the internet just a click away. People of every age from children to the old people understand how internet works which has found to be the main reason of its so grown popularity. It connects us to people all over the world and provides endless information and entertainment.

How does the speed of a mainframe computer compare to a personal computer?

No single figure can be given, as this has varied widely over the years with changing technology (e.g. tube, transistor, IC, VLSI), architectural improvements, implementation (e.g. microcode vs. hardwired logic vs. programmable logic devices), etc.

How can you look at the History on your computer?

you can go to internet under favorites category on xp operating systems and check history on the right hand side. you can also use search function on your computer and type in "cookies" it will show all sites someone looked on. go to start menu, search will be under help and support. hope this helps you out.

How did charles Babbage come up with the idea of the computer?

While he was in his 20's, he was still working as a mathematician. He was elected a Fellow of the Royal Society, in 1816. The Difference Machine was started in 1821 but failed its test in 1833. In 1842 Charles Babbage created the Analytical Engine; he completely abandoned the Difference Machine. It was never completed but it helped improve Britain's machine-tool industry. In 1991, the National Museum of Science and Technology built a replica of the Difference Machine; it was a real working one. In 1879, Charles Babbage's son reassembled a section of the Difference Machine, which was auctioned for auction in London auctioned in Sydney for $282,000. On October the 18th 1871, London, UK, Charles Babbage died.

Was Macintosh or IBM the first personal computer invented?

Apple did not make the first personal computer. A company called Micro Instrumentation and Telemetry Systems (MITS) produced a kit in 1975 that you could assemble into the Altair 8800 microcomputer which is considered to be the first personal computer. The sales of this computer were higher than expected which indicated that there was a demand for personal computers. This inspired Apple and many others to start developing and selling their own brand of personal computers.

What are the difference between computers 1 generation to 5 generation?

This is a rather broad question... There are numerous differences between various generations of computers, and numerous things that could be meant by the term "computers." I have to assume the question refers more specifically to the various generations of computer processors.

Between the first Pentium and the latest Core 2 Duo processors, for example, quite a few changes have taken place.

* Clock speed - newer processors generally run at higher speeds; this is a measure of how quickly the processor can operate, expressed in hertz. This is not the only relevant figure when comparing different processors.

* Number of cores - in the last couple of years, chip makers have touted the number of cores on their processors; think of each one as a separate mini-computer of sorts, able to complete its own tasks; a limitation with multi-core processors is the software, which often cannot take full advantage of multiple cores.

For further information, please clarify the question, and perhaps the intended purpose (is this information intended to help with an upcoming purchase or simply personal edification?).

Who built the Univac?

Different companies built computers using the Univac trademark over time:

  1. Eckert Mauchley Computer Company (EMCC) began building them but ran out of funds before they could deliver any.
  2. Remington Rand bought EMCC in 1950 just before EMCC went bankrupt and finished and sold them initially.
  3. Sperry Rand after Sperry Corporation and Remington Rand merged in 1955.
  4. Sperry Univac after Sperry Rand changed its name in 1978 when they decided to specialize in computers and sold unrelated divisions.
  5. Unisys after Sperry Univac and Burroughs Corporation merged in 1986.

Why is a computer electronic?

The data across the wire is being sent in 1s and 0s. 1s mean on and 0s mean off. Digital signals are moved in a up down almost perfect rhythm. Analog shows data in jerky signal and its harder to read. That is why when analog power goes into your system from the wall jack it is converted into digital power.

What are the advantages of using presentation software?

You don't need a slide projector or an overhead projector.

How big was the worlds first computer?

The largest computer ever built was the AN/FSQ-7, it was roughly 8 feet tall and covered an area of nearly 3.5 acres. Used in the Air Force SAGE air defence system 52 machines were built and installed at 26 sites, 25 across the US and 1 in Canada.

When was the first website created?

The first Web site built was at http://info.cern.ch/ and was first put online on August 6, 1991. It provided an explanation about what the World Wide Web was, how one could own a browser and how to set up a Web server. It was also the world's first Web directory, since Berners-Lee maintained a list of other Web sites apart from his own.

What was life like before the computer was invented?

Bookkeeping was done in a general ledger. All entries were manually written and posted as a debit or a credit. All columns with numbers recorded had to be totalled and must balance at the end of each month.

What are features of computer?

Following are the features of PC (computer):

Processor

Random access memory (RAM)

Operating system

Graphics adapter and video RAM

Monitor

Did bill gates come up with the idea of windows?

Steve & Bill did work together, after they made DOS they decided to make a more user freindly GUI(pronounced Guwee)which is a Graphics User Interface. They played with the idea around then put the first windows out on the line, Steve resigned as co-founder of Microsoft shortly after due to health issues. They reason they called it windows was because of the idea of multiple user panes, that were evetually dubed windows. but in short, YES, it was his idea. But Steve did alot of the programing and mananging for it in the beginning.

Why was the first computer game made?

The first PROGRAMMABLE computer was created by Charles Babbage back in the 1800s to reduce the level of human error in the calculation of mathematical tables. Arguably, the first major computer could be considered the ABACUS, which was also used to reduce the level of human error in the calculation of mathematical tables.

What was the first large scale digital computer?

Presper Eckert and John Mauchly were the first to patent a digital computing device, the ENIAC computer. A patent infringement case (Sperry Rand Vs. Honeywell, 1973) voided the ENIAC patent as a derivative of John Atanasoff's invention.

What is name of the first mainframe computer?

1943, it was called Colossus and was used by the British to crack the German high command's cyphers. By the end of the war 11 of them had been built, making it the only digital computer built in a quantity greater than 1 until after 1950.

What are the two classifications of computers that Charles Babbage is responsible for?

He is famous for his mechanical machines he designed, the Difference Engine and the Analytical Engine, though he did not actually fully build them. They were completed by others after he died. He is also credited with inventing other things. He invented the frame at the front of locomotives that help clear items from a rail line, which is called a pilot or a cow catcher. He also invented an ophthalmoscope, a device for examining the eye.

How computers ar use in the military?

The use of the computer in the military was actually quite simple. The computer was used in order to communicate.

Where did the name computer bug come from?

that someone found a mouth on the fan and thts where they got the name from

The term "bug" had been in use for any malfunction or error of a machine long before electronic digital computers existed.

Its first use referring to a computer problem was on the Harvard Mark II electromechanical computer, when a moth got smashed inside the contacts of a relay causing a failure. When the failure was located and the moth removed from the relay, the operator on that shift taped it to the logbook below the entry on the failure and labeled it First Computer Bug. That morning Grace Murray Hopper came on duty and read the logbook and thought it was a great story to tell every time she spoke somewhere. The first computer bug wasn't even in an electronic computer, the Harvard Mark II was electromechanical & it was not a softwareproblem but a hardware problem.

What are the different types of computer peripherals?

Any external device that plugs into your computer, such as a printer, modem, scanner, or tape drive.