An introduction to the history of personal computer

These devices had a low operating speed and were eventually superseded by much faster all-electric computers, originally using vacuum tubes. Together with the punch card design, he created the analytical engine. Podcast[ edit ] View this podcast to find out about the history of computing.

This real-time information system began operating in the early s. Unfortunately, byTexas Instruments, the main supplier of electronic calculator parts, entered the market, introducing calculators that were priced less than Commodore could even build them.

When the Minuteman I was decommissioned, some universities received these computers for use by students.

Introduction to Computers/History

Let us call it Simon, because of its predecessor, Simple Simon It was transferred to the Department of Physics at the University of Melbourne in and remained in service until Colossus reduced the time to break Lorenz messages from weeks to hours. Von Neumann acknowledged that the central concept of the modern computer was due to this paper.

This turned the personal computer into a useful business tool, not just a game machine or replacement for the electric typewriter. But one of the most significant of the inventions that paved the way for the PC revolution was the microprocessor. Charles Babbage, who is accredited with first conceptualizing the programmable computer [w: Grace Hopper was the first person to develop a compiler for programming language.

Marketed as a more sophisticated bit microcomputer for professional users, it used a Motorola processor.

Atari 8-bit family Atari was a well-known brand in the late s, both due to their hit arcade games like Pongas well as the hugely successful Atari VCS game console. Compared to earlier microcomputers, the Altair was a huge success: The Antikythera mechanism is believed to be the earliest mechanical analog "computer", according to Derek J.

After designers saw a demonstration of the ENIAC computer, they decided instead on a digital approach, while at the same time the project changed from a flight simulator to an air defense system. Soon companies like Xerox, Tandy, Commodore and IBM had entered the market, and computers became ubiquitous in offices and eventually homes.

Notable Computers[ edit ] Here are some computers that came and went in the history of computing. It used 53 vacuum tubes and hundreds of germanium diodes, with a magnetic drum for memory.

Invention of the PC

However, Commodore competitively responded to this by searching for a chip set they could purchase outright. Microsoft followed up the agreement with Yahoo!

The first microprocessor on the market was developed in by an engineer at Intel named Ted Hoff. He proved that such a machine is capable of computing anything that is computable by executing instructions program stored on tape, allowing the machine to be programmable. Starting in the s, Vannevar Bush and others developed mechanical differential analyzers.

The machine was designed and built by Atanasoff and graduate student Clifford Berry between and The cassette option was never popular and was removed in the PC XT of While the subject of exactly which device was the first microprocessor is contentious, partly due to lack of agreement on the exact definition of the term "microprocessor", it is largely undisputed that the first single-chip microprocessor was the Intel[58] designed and realized by Ted HoffFederico Fagginand Stanley Mazor at Intel.

Arguably, these were the first home or educational computers that could be purchased, taken out of their boxes, setup, plugged-in and then used in some immediate productive way. A year later, it steered Apollo 11 to the lunar surface. Before microprocessors were invented, computers needed a separate integrated-circuit chip for each one of their functions.

A series of pulleys transported continuous rolls of punched paper tape containing possible solutions to a particular code. An 8 bit computer introduced in Januarythe Commodore 64 rose to become the best selling personal computer of all time. Hundreds of bombes were built, their purpose to ascertain the daily rotor start positions of Enigma cipher machines, which in turn allowed the Allies to decrypt German messages.

Thedesigned by ERA but built by Remington-Rand, was intended for high-speed computing and stored 1 million bits on its magnetic drum, one of the earliest magnetic storage devices and a technology which ERA had done much to perfect in its own laboratories.

This was the first program to ever run on an electronic stored-program computer. Devices of a level of complexity comparable to that of the Antikythera mechanism would not reappear until a thousand years later. In Charles Babbage invented his difference enginean early calculator.

At the top of the line was the Modelalso known as "Stretch.Accountants rejoice at the introduction of VisiCalc, The first IBM personal computer, code-named "Acorn," is introduced. It uses Microsoft's MS-DOS operating system.

Computer History. The replica is currently on display at the Computer History Museum. the LGP was a “bargain” at less than $50, and an early example of a ‘personal computer,’ that is, a computer made for a single user.

History of personal computers

The chip brought with it the introduction of a bit architecture, a significant improvement over the bit. The replica is currently on display at the Computer History Museum. The introduction also marked the beginning of IBM’s entry into the large-scale computer market, a market it came to dominate in later decades.

the LGP was a “bargain” at less than $50, and an early example of a ‘personal computer,’ that is, a. The Kenbak-1, released in earlyis considered by the Computer History Museum to be the world's first personal computer.

It was designed and invented by John Blankenbaker of Kenbak Corporation inand was first sold in early Personal computer history doesn’t begin with IBM or Microsoft, although Microsoft was an early participant in the fledgling PC industry.

Microsoft Corporation

The first personal computers, introduced incame as kits: The MITS Altairfollowed by the IMSAIan Altair clone. CHAPTER 1 Introduction to the Personal Computer Objectives Upon completion of this chapter, you should be able to answer the following questions.

An introduction to the history of personal computer
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