Changeset 222 in t29-www for en/computer


Ignore:
Timestamp:
Dec 18, 2010, 3:40:14 PM (13 years ago)
Author:
sven
Message:

Some other 15 user contributions for language improvement in English homepage. They were from about 4 different persons where only one told us his name. The system really should remind the user of mentioning his name. At least now heribert recieves the improvement mails, too.

Location:
en/computer
Files:
2 edited

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  • en/computer/early-computers.shtm

    r221 r222  
    1010   --><!--#set var="next"         value="analog.shtm"
    1111   --><!--#set var="next_title"   value="Analog and hybrid computers"
     12   --><!--#set var="credits"      value="M. Kaye / Ann Arbor, MI, USA"
    1213 --><title>technikum29 - <!--#echo var="title" --></title>
    1314
     
    3738       
    3839        <p>
    39          One of the museal highlights: The complete PDP-8 system with processor,
    40          big tape deck TU 580 (originally belongs to the PDP-5, year of manufacture
    41          1963), punch card reader/puncher PC 01, hard disc DF 32 with immovable heads
    42          and a teletype as printer. The Classic PDP-8 is called the world's first mass-produced
    43          "minicomputer". Without ICs or their ancestor it is a seccond-generation apparature.
     40         One of the museum highlights: The complete PDP-8 system with processor,
     41         a big tape deck TU-580 (originally belonged to the PDP-5, manufactured in 1963),
     42         punch card reader/puncher PC-01, hard-disc DF-32 with immovable heads
     43         and a teletype as printer. The Classic PDP-8 is considered the world's first mass-produced
     44         "minicomputer". Due it's use of ICs, unlike its predecessors, it is considered
     45                 a second-generation computer.
    4446         <!-- The <b>Classic PDP 8</b> from DEC (Digital Equipment Corporation, Massachusetts):
    4547         He is considered to be the world's first mass-produced "minicomputer" (1965). "Mini" is relative: Only too very
     
    5557           
    5658            <p>DEC's first calculator with integrated circuits was not cheap. The CPU on
    57              its own (in the middle of the picture) without peripherals cost $27000 at that time.<br/>
    58              The main memory had a capacity of 8kB. While calculating a "bigger" problem, possibly some files
    59              (programs, data) had to be swapped on a (magnetic) tape and read in afterwards. DEC developed
    60              a very intelligent operating system (OS/8) which could work very efficiently with such few memory.
     59             alone (pictured in the center) without peripherals cost $27000 at that time.<br/>
     60             The main memory had a capacity of 8kB. While computing a "larg" problem, it was possible to swap
     61             programs or data to files on magnetic tape and read in afterward be reread. DEC developed
     62             an intelligent operating system (OS/8) which worked very efficiently with such little memory.
    6163             It is very interesting to watch this computer working.</p>
    62             <p>If you have not yet seen such a computer, you should know that it is more than 2m high (with
    63              plotter) and has a weight of more than 300 kg.</p>
    64             <p>The peripherals consist of two TU 55 (tape drives), PC 04 (high speed paper tape reader),
    65              Calcomp 563 plotter (at the top) and of course a teletype (not in the picture).</p>
     64            <p>If you have not been in the presence of this computer, you should know that it is quite large.
     65             With the plotter, it stands at a height of almost 7' (2m) and weighting at more than 600 lbs (300kg).</p>
     66            <p>The peripherals consist of two TU-55 (tape drives), a PC-04 (high speed paper tape reader),
     67             Calcomp 563 plotter (at the top) and of course a teletype (not pictured).</p>
    6668        </div>
    6769    </div>
  • en/computer/storage-media.shtm

    r219 r222  
    159159          -20° C to +50°C (-4°F to 122°F).
    160160          <br/>In this way the plated wire storage was developed, based on a couple of
    161           genious ideas. Unfortunately, nowadays it is very error-prone.</p>
     161          ingenious ideas. Unfortunately, nowadays it is very error-prone.</p>
    162162       <p>Clicking on the photography will yield further informations about the
    163163          <a class="go" href="/en/devices/plated-wire-storage.shtm">design of the plated
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