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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
What were the two main problems caused by using the valves on the Colossus computer?
Probably rate of burnout and heat. But this was common to all vacuum tube computers, not just Colossus.
What is the name of the first computer built in 1832?
None of Charles Babbage's computers were built. He invented & designed them but failed to build them. You are probably thinking of the Analytical Engine, but as I said it was never built.
What are the different generations of computer networks?
* First Generation (1940-1956) - VACUUM TUBES * Second Generation (1956-1963) - TRANSISTORS * Third Generation (1964-1971) - INTEGRATED CIRCUITS * Fourth Generation (1971-Present) - MICROPROCESSORS
What was the size of the UNIVAC computer?
There have been many UNIVAC computers over the years, from the UNIVAC I to the Sperry UNIVAC 1100 series machines and beyond. Can you be more specific?
The first web browser was called?
Mosaic was first, then Netscape (made by the team that made Mosaic), followed by Internet Explorer (Microsoft), then Opera. After that came Safari for the Mac, and most recently, Chrome (by Google).
Safari is the only one I have not used, since it is for the Mac, but from the rest, Opera is the one I find the easiest to use by far.
The 2nd class lever reduces the mass of an object, thus it reduces the amount of effort required to lift it.
Eg: A wheelbarrow is a 2nd class lever, you are able to move a heavy object with it that you otherwise wouldn't be able to move by yourself.
What is the role of computer in the world?
One of the uses of a computer regards automation of processes. Other computer uses include communication, entertainment, and educational purposes.
Who first discovered that computers need a CPU?
The computer was invented, not discovered. Discovery implies that it already existed before we became aware of it.
There is no single inventor of the computer, various people invented various calculating machines at various times until the equivalent of a "critical mass" was achieved and all the right pieces started coming together.
Also the answer to your question depends on your definition of "computer".
As of 2014, the ENIAC is in different pieces and those pieces are at different locations. For example, some pieces are at the Smithsonian Institution, and some are at the Science Museum in London.
When was the first IMB Home Computer invented?
The IBM 701 vacuum tube computer was announced May 21, 1952. It had 2K words 36 bits long (~9K bytes) of Williams Tube CRT DRAM.
When was the 8 bit CPU invented?
Hard to say.
- The Colossus (1944) built to break German High Command teletype cyphers processed 8 bits of the code stream at a time. But only 5 of the 8 were encrypted character data.
- Many 1950s business computers operated on characters instead of words, but these were usually 6 bit characters not 8 bit characters.
- The IBM 7030 Stretch (1961) defined a byte a a variable length of 1 to 8 bits.
- The IBM System 360 (1964) defined a byte as 8 bits. The 360 was also the first computer to address memory at the byte/character level, regardless of the size or type of data being accessed. The 360/20 and 360/30 implementations used microcoded 8 bit processors to interpret the System 360 instruction set, but other versions of the 360 used processors with larger word size (both microcoded and hardwired logic implementations).
- During the minicomputer era CPUs were frequently either 12 bit (e.g. DEC PDP-8) or 16 bit (e.g. DEC PDP-11, Data General Nova) but there may have been some 8 bit CPUs in this period.
- Intel's 8008 (1972) was the first 8 bit microprocessor CPU.
What was Bill Gates early vision of computing?
Bill Gates early vision of computing was that there would be a computer on every desk and in every home. He also felt that computers should not be only for scientists and the like, but that they could be useful to anyone and everyone.
Why is it that Data Processing is the most important function of the computer?
That's what computers were designed to do...process data...make our live simpler.
Computers are used for many purposes in homes. They can be used to store family recipes, family photos, or to help keep track of the budget.
What were the first calculating machines?
Possibly the abacus, a board with wood rods, and wood beads on the rods. It is thousands of years old.
The first electronic computer, I think, was Univac. It used vacuum tubes instead of solid state devices to do its computing.
Where were the 4 original Arpanet computers located?
The Advanced Research Projects Agency (ARPA) initially connected four computer network nodes. These initial computers were located at the University of California, Los Angeles; the Stanford Research Institute; U.C. Santa Barbara; and the University of Utah.
When did Tommy Flowers invent Colossus the world's first electronic digital programmable computer?
He did not entirely invent the Colossus computer. Bletchley Park had already produced a counting machine dubbed "Heath Robinson" (British equivalent of the American "Rube Goldberg Machine"), but it was highly unreliable due to the need to synchronize two paper tapes at high speeds. The key improvement to the existing "Heath Robinson" design that Tommy Flowers made was to replace the "encryption key" tape with high speed electronics that could be programmed to generate the key in real time as the "encrypted message" tape was being read. That completely eliminated the problems with synchronizing of paper tapes. But the logical principals used to break the cipher were identical in both the "Heath Robinson" and the Colossus.
Once initial problems with the prototype Colossus Mark I had been resolved and it was reliably working on messages at 5000 characters per second Tommy Flowers added a five level deep pipeline, providing parallel processing in the finished Colossus Mark II permitting it to work on messages at 25000 characters per second.
What is the main purpose of an electronic career portfolio?
to provide potential employers with a complete digital representation of your abilities, skills, capabilities, knowledge, and qualities
Explain the types of computer network?
There are two main types of networks: 1) Peer to peer network : In this network all network resources are evenly shared , between all the users. All users in the network have equal administrative privileges. 2) Server client network: This is a network where there is only 1 central point in a network that supplies the network resources, this point has administrator privileges in the network and controls the whole network.
What is the reason why the computer affects the society?
One argument that computers are bad for society is that they allow people to communicate without any actual human involvement. People can become isolated with no human contact when they use a computer and rely on it instead of other people for contact.
Who built the first home computer?
Konrad Zuse was the inventor of the first fully functional, programmable computer in 1941.
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How has the internet change your lives?
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