Computers

First generation computers were built with vacuum tubes. The capabilities were about the same as that of modern computers, except limited by very small memories and slow speed. Typical first generation computer memory cost from $2 to $20 per byte equivalent, whereas today's computer memory costs less than a micro-penny per byte.

The term "compute" has been around a long time, meaning to "devise an answer to a problem by evaluating data, following a prescribed series of steps, and arriving at a logical, proveably correct answer." In the 40's, women (and to a lesser extent, men) were hired by the government to endlessly work out mathematical problems for figuring artillery trajectories, and they were actually called "computers"...

in my knowledge
computers might be a laptop, a size of a mobile and 200 gb memory because the first computers had a colassal glass monitor with a few kb memory!
and now a palm os
a laptop with more than 1 gb of memory form DELL

Computers have become part of our everyday lives in most of everthing that we use. For example our cars, our alarm clocks and there's many more to name. Some colleges use computers for online classes especially for the mothers that can't go to the campus like myself.

IBM (also known as "Big Blue") built supercomputers in the 1980s.

Hewlett Packard introduced the first handheld scientific calculator in 1972 and that became the first ever handheld computer to be invented.

a bit

ENIAC Or John Mauchly and J. Presper Eckert Jr.

Yes, one of the companies well known in the Computer Industry was called International Business Machines when they built the business building Typewriters. That company is now known as IBM. Both Typewriters and computer use keyboards. Typewriters were invented before Computers but a Typewriter can do some things but a Computer can do a lot more

I think that with books, you have to use your brain more in order to find what you are looking for or use your imagination. It's like reading a book then watching the movie. The book seems to be always better.

It was Professor John Vincent Atansoff. He developed it in 1939. It was invented in the Iowa State University.

The Sphere 1 qualified as The First Personal Computer because it included a keyboard, a number pad, and a monitor. In 1976 Steve Jobs and Steve Wozniak sold the Apple I computer circuit board, which was fully prepared and contained about 30 chips. The first successfully mass marketed personal computer was the Commodore PET introduced in January 1977, which bore a striking resemblance to Sphere 1 of two years earlier. It was soon followed by the TRS-80 from Radio Shack and the popular Apple II. Mass-market pre-assembled computers allowed a wider range of people to use computers, focusing more on software applications and less on development of the processor hardware.

A minicomputer was a class of computers sold in the mid-60's. They include Digital Equipment Corporation's 12-bit PDP-8, IBM's 1130, 1800, and system 3, Packard Bell PB 250 and many others. See the links for more.

We now use the term "midrange computer" for the modern equivalent of a minicomputer. Examples include the higher-end SPARC, POWER and Itanium-based systems from Oracle, IBM and Hewlett-Packard.

The three main types of Computer are Desktop, Laptop, Netbook, Tablet and Server.

To go more in depth you can then say Desktop, Laptop, Netbook, Tablet, iMac, Macbook, Macbook Pro, iPad and Servers

Hope this covers your question!

The Xerox Alto was the first computer to use a Graphical User Interface (GUI)

Network repeater regenerate incoming electrical, wireless or optical signals. With physical media like ethernet or Wi-Fi, data transmissions can only span a limited distance before the quality of the signal degrades. Repeaters attempt to preserve signal integrity and extend the distance over which data can safely travel.

There weren't computers like these today, to make a big enough impact on the world

Computer hardware sizes have shown a direct trend of decrease over time. This relationship is irrespective of specific computational hardware eras. Reasons behind size reduction come from technological advances miniaturizing chip sets and memory such as multicore and parallel processing and solid state memory.

Go to google.com and click on images and then type in the word computer.

The Nez Perce are an Indian tribe that lived in North Central Idaho, Oregon, and Washington. They were chased out of their land by the U.S Army to the Canadian border then to the bear paw mountains where chief Joseph surrrendered. Then they were brought to a reservation in Oklahoma.

A personal computer

is a computer meant for home users and is typically a single CPU with a maximum of a quad core technology whereas a mainframe is a computer which is meant for organizations and is typically comprised of thousands of processors.

Today's computer would be nothing like it is now without the microprocessor. Most every electronic device has a microprocessor in it, from garage door openers, to remote controls, and cell phones. The microprocessor revolutionized electronics, giving them intelligence, and making our lives easier. Thus, it revolutionized the computer industry.

Super Computers

a main frame computer is a large-scale computers but a super computer are larger than mainframe while a mini computer is smaller in size, have lower processing speed and also have lower cost than mainframe computers.