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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 if urine output exceeds input?
If urine output exceeds input you will lose total body water. If you are retaining fluid, i.e. have too much, this is normal and good. At some point, if it does not stop , it will lead to dehydration.
What is the of the name of the organization?
The answer is the Heart. or Liver or lung. You have to be more specific.
Why speed of analog computer is more than digital computer?
When implemented with the same technology, an analog computer will always be faster than a digital computer. This is because of the data representation: an analog computer represents data using one continuously variable signal per item, this signal is capable of changing as fast as possible with the given technology; a digital computer represents data using several discontinuously variable signals encoding the value of each item, these signals must be allowed to settle and stabilize to a valid code after each calculation forcing the computer to wait, slowing it down. This cannot be avoided and is an inherent difference between the two classes of computer.
Another reason analog computers are faster is architectural. Analog computers do not separate calculation and data storage like modern digital computers do. The calculations are distributed throughout the machine while the data stays put. Digital computers waste a lot of time moving data from memory to a central group of ALUs and back to memory. This could be avoided by use of different digital computer architectures (e.g. DDAs) but these usually sacrifice the benefits of stored programming and make the digital computer as hard to program as most analog computers.
What did the analytical engine look like?
That cannot be said exactly as it was never built but some guesses can be made from the drawings of the various sections: mill, store, printer, etc. The exact layout of a finished machine can only be guessed at.
The largest part of the machine would have been the store, consisting of 1000 columns of 50 digit wheels each. Assuming each digit wheel to be roughly 1 inch thick and 3 inches in diameter, this would have stood maybe 5 feet tall and occupied over 250 square feet of floor space.
Who is the creator of computer?
The first computing machine directly related to the present was created in 1801 by Joseph Marie Jacquard who implemented the idea into a weaving loom.
In 1812, Charles Babbage designed a mechanical "difference engine" that was built after his death and found to be accurate. His original intent was to correct and improve French logarithm tables produced by hand.
Computing machines were improved throughout the 1800s and early 1900s. The first digital computer was built by John Atanasoff in 1930, and is referred to as the Atanasoff-Berry computer (referencing co-developer Clifford Berry).
The production and mass marketing of computers and their programs was most developed by a man named Bill Gates, who became one of the richest men on Earth because of his innovative ideas. Gates and competitor Steven Jobs were responsible for bringing the "personal computer" into widespread use.
Who coined the terms bit and byte?
Werner Buchholz coined the term bit/byte in 1956 for IBM stream computer.
What was the first handheld computer games?
As nearly as I can tell, the first (graphical) computer game was written in 1952 by A.S. Douglas. It was human against computer in . . . . Tic Tac Toe. Douglas wrote it as part of his PhD dissertation on Human/Computer interaction.
He is one of the 2 founders of Hewlett-Packard. The other is Dave Packard.
How can a lever make a see saws work easier?
A see-saw is a lever, one that pivots about a central fulcrum.
To make them work, one of the people has to push off from the ground with their feet and they go up as the other person goes down, then the other person pushes off with their feet, and they go up, and so it goes on....
What are features of fourth generation computers?
They use a device called Microprocessor. They are smaller in size.
They are cheaper and faster.
They are very easy to handle.
Examples: IBM 4300, ICL 2900.
What is generation of computer Explain each generation uses advantages-disadvantages?
The most fundamental concepts in object-oriented programming languages are 1) abstraction, 2) encapsulation, 3) inheritance, and 4) polymorphism. These four concepts can each take a chapter by themselves, so just very briefly in practical terms: Abstraction is a concept that allows you to 'abstract' the actual manipulation of data/objects/code and synthesize it into instructions of business logic. For example, Car->Start(); Encapsulation allows you to encapsulate data and methodsinto containers to prevent them from interfering with similar data and methods of a different nature other. For example, you might have a method named Start() for your car, and a method named Start() for your stove. To prevent the namespaces from colliding, these go into containers/objects/classes as such: Car->Start(); and Oven->Start(); Inheritance is the idea of letting an object inherit properties from another object. For example, the object Lamborghini inherits all the properties and methods from the object Car. Polymorphism is the ability of objects to dynamically adapt themselves to another container. This is the most complicated of the concepts and it's a very poor explanatory statement. Structured programming languages aren't object-oriented - they are function-oriented, so they have none of the attributes above. Those are the key differences.
