Changeset 299 in t29-www for en/computer/early-computers.php
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- Sep 19, 2012, 11:38:55 AM (12 years ago)
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en/computer/early-computers.php
r292 r299 75 75 <p>Today's kids think of the latest mobile devices when talking about "mini computers". 76 76 In contrast, in the 1960s and the early 70s, a computer was always huge (like our 77 <a href="univac9400. shtm">UNIVAC mainframe</a>), thus a 300kg computer was "mini".77 <a href="univac9400.php">UNIVAC mainframe</a>), thus a 300kg computer was "mini". 78 78 Early computers are well worth seeing due to their enormous size and the nice 79 79 transparent auxillary devices. … … 97 97 98 98 <p>For further reading see the story about <a class="go" name="backlink-dec" 99 href="/en/devices/dec-history. shtm">Rise and Fall of DIGITAL (Equipment Corporation)</a>.</p>100 101 <!--alter Text: The legendary Classic PDP 8 from the company DEC (year of manufacture 1965) can be admired among others. Furthermore you can see the PDP 8L or <a class="go" href="/en/devices/pdp_8I. shtm">PDP 8I</a> (year of manufacture 1967, a lot of periphery) and the laboratory computer <a class="go" href="/en/devices/lab_8e.shtm">LAB8e</a> (1971).99 href="/en/devices/dec-history.php">Rise and Fall of DIGITAL (Equipment Corporation)</a>.</p> 100 101 <!--alter Text: The legendary Classic PDP 8 from the company DEC (year of manufacture 1965) can be admired among others. Furthermore you can see the PDP 8L or <a class="go" href="/en/devices/pdp_8I.php">PDP 8I</a> (year of manufacture 1967, a lot of periphery) and the laboratory computer <a class="go" href="/en/devices/lab_8e.php">LAB8e</a> (1971). 102 102 Because of constantly growing claims for storage capacity, backing storage (19-zoll drawers for 4kB with a weight of 20kg) was offered. The PDP 8I could not administrate more than 32kB. 103 103 <br />THe PDP 8L, a trimmed-down version of the PDP 8I, cannot hold more than 8 kB.</p> --> … … 150 150 strong men can lift the computer. It is better to have four people to carry it!. 151 151 Without ICs or their ancestors the device is counted among the seccond-generation calculators. 152 <br/>You can also get a view from the "Flip-Chip"-card from the <a class="go" href="/en/devices/pdp-8-left-flank. shtm">left flank</a>152 <br/>You can also get a view from the "Flip-Chip"-card from the <a class="go" href="/en/devices/pdp-8-left-flank.php">left flank</a> 153 153 (<u>flank</u>). The core memory is set above (storage capacity 4kB).--> 154 154 … … 441 441 442 442 <h3>WANG 2200 with bulky peripheral hardware</h3> 443 <p>Next, the first system that looks like today's computer is presented: <a class="go" href="/en/devices/wang2200. shtm">WANG 2200</a>, year of manufacture 1973. This computer, with so many peripheral devices, is probably unique in Germany. The peripherals: paper tape reader, punch card reader, triple 8-inch disc drive, hard disc system with 38cm diameter disks (the device weights 100kg and cost 24000 DM, but only holdy 5MB), special BASIC-language keyboard, etc.</p>443 <p>Next, the first system that looks like today's computer is presented: <a class="go" href="/en/devices/wang2200.php">WANG 2200</a>, year of manufacture 1973. This computer, with so many peripheral devices, is probably unique in Germany. The peripherals: paper tape reader, punch card reader, triple 8-inch disc drive, hard disc system with 38cm diameter disks (the device weights 100kg and cost 24000 DM, but only holdy 5MB), special BASIC-language keyboard, etc.</p> 444 444 <p>WANG quickly recognized that the future of computers needed screens. However the concurrent HP 445 445 computers had only a single-line LED display until 1975.</p> 446 446 447 447 <div class="box center"> 448 <a href="/en/devices/wang2200. shtm" name="backlink-wang2200"><img src="/shared/photos/rechnertechnik/wang2200.jpg" width="592" height="402" alt="Wang 2200" /></a>448 <a href="/en/devices/wang2200.php" name="backlink-wang2200"><img src="/shared/photos/rechnertechnik/wang2200.jpg" width="592" height="402" alt="Wang 2200" /></a> 449 449 </div> 450 450 451 451 <p>The first personal computer was also build by WANG: the PCS II (1975). The first PC that was affordable for everybody was the PET 2001 from Commodore. It came on the market in 1977 and was as cheap as today's PCs, but had 8kB and had decent applications. Many more home computers followed, the market got out of hand and therewith this collection of computers ends.</p> 452 452 453 <p>See further details at <a class="go" href="/en/details2. shtm" title="Details 2">the tabular overview of453 <p>See further details at <a class="go" href="/en/details2.php" title="Details 2">the tabular overview of 454 454 mid range data processing equipment and proffessional early computers</a>.</p> 455 455
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