History of IBM Developments

1956 - FIRST MAGNETIC HARD DISK. IBM introduces the world's first magnetic hard disk for data storage. RAMAC (or Random Access Method of Accounting and Control) offers unprecedented performance by permitting random access to any of the million characters distributed over both sides of 50 two-foot-diameter disks. Produced in San Jose, California, IBM's first hard disk stored about 2,000 bits of data per square inch and had a purchase price of about $10,000 per megabyte. By 1997, the cost of storing a megabyte had dropped to around ten cents.

1957 - FORTRAN. IBM revolutionizes programming with the introduction of FORTRAN (Formula Translator). Created by John Backus, it soon becomes the most widely used computer programming language for technical work. For the first time, engineers and scientists can write computer programs in more natural forms, such as C=A/B rather than as strings of "machine language: 1s and 0s.

1997 - DEEP BLUE. The 32-node IBM RS/6000 SP supercomputer, Deep Blue, defeated World Chess Champion Garry Kasparov in the first known instance of a computer vanquishing a world champion chess player in tournament-style competition. Also after years of teamwork among Research and Microelectronics divisions, IBM introduced the CMOS 7S process, which allowed manufacturers to use copper wires to link transistors in computer chips instead of relying on traditional aluminum interconnects; a revolutionary advance in semiconductor technology.



Saturday, June 19, 2010

History of Computer Science

The early foundations of what would become computer science predate the invention of the modern digital computer. Machines for calculating fixed numerical tasks, such as the abacus, have existed since antiquity. Wilhelm Schickard built the first mechanical calculator in 1623. Charles Babbage designed a difference engine in Victorian time helped by Ada Lovelace. Around 1900, punch-card machines were introduced. However, all of these machines were constrained to perform a single task, or at best some subset of all possible tasks.
Posted by at

4 comments:

  1. UnknownJune 21, 2010 at 1:27 AM

    JRichman is the author of this site.
    See my other sites.

    ReplyDelete
  2. UnknownJune 24, 2010 at 2:44 PM

    Other google blogs by Jordan Richman:

    uncesConey Island Dreams

    The Coronado Review

    Arizona Violin

    Writers Anonymous, Inc.

    Computer Science

    Art Legends

    Amazon.com Associates Central

    Jordan Richman - Google Profile

    Facebook | Writers Anonymous, Inc.

    writers anonymous inc. Jordan Richman - AOL Search Results

    Jordan P. Richman | Find Articles at BNET

    ReplyDelete
  3. UnknownJune 24, 2010 at 2:51 PM

    copy htmls: I will pay for any consulates advice on how to compose workable links.

    uncesconeyislanddreads.blogspot.com
    thecoronadoreview.blogspot.com
    arizonaviolin.blogspot.com
    writersanonymousinc.blogspot.com
    computerscience.blogspot.com
    artlegends.org
    Member of Amazon.com Associates Central
    writersanonymousinc.com
    Articles on BNET

    ReplyDelete
  4. UnknownJune 24, 2010 at 2:54 PM

    My Email is: jprich9231@aol.com

    Thanks.

    I could also use other advice on blogging issues.Reading googelese is like reading Chinese or Hebrew, two of the other oldest languages.

    ReplyDelete

Subscribe to: Post Comments (Atom)