Computer



A computer is a machine that manipulates data according to a set of instructions.

Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). These were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers are small enough to fit into a wristwatch, and can be powered by a watch battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers". The embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are however the most numerous.


The ability to store and execute lists of instructions called programs makes computers extremely versatile, distinguishing them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore computers ranging from a mobile phone to a supercomputer are all able to perform the same computational tasks, given enough time and storage capacity.

The first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued to be used in that sense until the middle of the 20th century. From the end of the 19th century onwards though, the word began to take on its more familiar meaning, describing a machine that carries out computations.[3]

The history of the modern computer begins with two separate technologies—automated calculation and programmability—but no single device can be identified as the earliest computer, partly because of the inconsistent application of that term. Examples of early mechanical calculating devices include the abacus, the slide rule and arguably the astrolabe and the Antikythera mechanism (which dates from about 150–100 BC). Hero of Alexandria (c. 10–70 AD) built a mechanical theater which performed a play lasting 10 minutes and was operated by a complex system of ropes and drums that might be considered to be a means of deciding which parts of the mechanism performed which actions and when.[4] This is the essence of programmability.

12 comments:

jeon said...

slamat malam sob.. tukeran Link yuk..
Link anda sudah sya pajang ditempatq..silahkan d cek di:
http://i-movies4all.blogspot.com/p/guest-book.html

thanks atas kerjasamax, smoga bisa saling membantu kedepanx :)

Azqia info said...

kawan link nya sudah saya pasang, silahkan lihat di http://azqiainfo.blogspot.com/2011/08/link-exchange.html
jangan lupa pasang balik ya.

yoghi said...

link ny sudah sy pasang, silakan cek
http://planet-article08.blogspot.com/

and need your kiss :*

Komputer About said...

linkmu udah tak pasang sob, link balik ya..
http://comanh.blogspot.com/

Azqia info said...

kawan ko' link saya belum di pasang.

Al-kahfi said...

Link barner sudah saya pasang di tunggu balasan yang sama ~_~

Bboy Zaid said...

tukar link n banner sob :)
link n banner sobat sdh terpasang :)
silakan di cek http://bboy-zaid.blogspot.com/p/daftar-link-banner-sahabat.html
mohon link dan banner saya di pasang di blog sobat :)
terima kasih :)

Yupzshot said...

Members (88) follow me back and link exchange banner http://yupzshot.blogspot.com/2011/09/reciprocal-link.html

Info Seputar Komputer said...

mas,,,link dah nancep dengan ganteng di blog saya,,silahkan cek ya

CARI UANG said...

tuker link gan, http://comtech-new.blogspot.com sudah terpasang di "pundi link sahabat" trim's.

HP Laserjet said...

when you find out that one of the things you badly need has run out or you do not have a spare anywhere at hand, getting it immediately makes a great difference.

Kyocera FS-3540MFP Toner Cartridges

ikechukwu onu said...

Nice post... Yot just reminder me of when I was having introduction to computer lecture.

Post a Comment

Please do not spam on this blog!!!!!
I will delete spam comment...
Just comment and don't spam. :)

Related Posts Plugin for WordPress, Blogger...