It was followed by similar small computers such as the IBM 5110 and 5120. IBM’s own Personal Computer (IBM 5150) was introduced in August 1981, only a year after corporate executives gave the go-ahead to Bill Lowe, the lab director in the company’s Boca Raton, Fla., facilities.
MITS Altair 8800 kit appears in Popular Electronics Bill Gates and Paul Allen licensed their BASIC programming language interpreter to MITS as the main language for the Altair. MITS co-founder Ed Roberts invented the Altair 8800 — which sold for $297, or $395 with a case — and coined the term “personal computer”.
Charles Babbage, an English mechanical engineer and polymath, originated the concept of a programmable computer. Considered the ” father of the computer”, he conceptualized and invented the first mechanical computer in the early 19th century.
ENIAC (/ˈɛniæk/; Electronic Numerical Integrator and Computer ) was the first programmable, electronic, general-purpose digital computer. It was Turing-complete, and able to solve “a large class of numerical problems” through reprogramming.
IBM Personal Computer
|IBM Personal Computer with keyboard and monitor|
|Release date||August 12, 1981|
|Introductory price||Starting at US$1,565 (equivalent to $4,401 in 2019)|
A small firm named MITS made the first personal computer, the Altair. This computer, which used Intel Corporation ‘s 8080 microprocessor, was developed in 1974. Though the Altair was popular among computer hobbyists, its commercial appeal was limited.
Ed Roberts (computer engineer ) Henry Edward “Ed” Roberts (September 13, 1941 – April 1, 2010) was an American engineer, entrepreneur and medical doctor who invented the first commercially successful personal computer in 1974.
Computers are usually categories into three general categories: Supercomputer – The fastest, largest, most powerful and most expensive computer. Mainframe Computer – This is a little smaller and less powerful than the supercomputer, but, like the supercomputer it is also expensive.
|Charles Babbage KH FRS|
|Fields||Mathematics, engineering, political economy, computer science|
|Institutions||Trinity College, Cambridge|
|Influences||Robert Woodhouse, Gaspard Monge, John Herschel|
Credit for our modern version of the school system usually goes to Horace Mann. When he became Secretary of Education in Massachusetts in 1837, he set forth his vision for a system of professional teachers who would teach students an organized curriculum of basic content.
By 1976, there were several firms racing to introduce the first truly successful commercial personal computers. Three machines, the Apple II, PET 2001 and TRS-80 were all released in 1977, becoming the most popular by late 1978.
The first workable prototype of the Internet came in the late 1960s with the creation of ARPANET, or the Advanced Research Projects Agency Network. Originally funded by the U.S. Department of Defense, ARPANET used packet switching to allow multiple computers to communicate on a single network.
The earliest known calculating device is probably the abacus. It dates back at least to 1100 bce and is still in use today, particularly in Asia. Now, as then, it typically consists of a rectangular frame with thin parallel rods strung with beads.