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<title>Sharp QT-8D</title>

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Sharp QT-8D

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</style><table class="infobox"><caption class="infobox-title">Sharp QT-8D</caption><tbody><tr><td colspan="2" class="infobox-image"><div class="infobox-caption">Sharp QT-8D Micro Compet front view</div></td></tr><tr><th scope="row" class="infobox-label">Manufacturer</th><td class="infobox-data"><a href="Sharp_Corporation" title="Sharp Corporation">Sharp Corporation</a></td></tr><tr><th scope="row" class="infobox-label">Introduced</th><td class="infobox-data">1969</td></tr><tr><th scope="row" class="infobox-label">Successor</th><td class="infobox-data"><a href="Sharp_EL-8" title="Sharp EL-8">EL-8</a></td></tr><tr><th scope="row" class="infobox-label">Cost</th><td class="infobox-data">JP¥99,800, US$395</td></tr><tr><th colspan="2" class="infobox-header">Calculator</th></tr><tr><th scope="row" class="infobox-label">Display type</th><td class="infobox-data">8-digit <a href="Vacuum_fluorescent_display" title="Vacuum fluorescent display">vacuum fluorescent display</a></td></tr><tr><th colspan="2" class="infobox-header">Other</th></tr><tr><th scope="row" class="infobox-label">Power supply</th><td class="infobox-data">110 V AC ～ wall power</td></tr><tr><th scope="row" class="infobox-label">Power consumption</th><td class="infobox-data">7W</td></tr><tr><th scope="row" class="infobox-label">Weight</th><td class="infobox-data">1.4 kg</td></tr><tr><th scope="row" class="infobox-label">Dimensions</th><td class="infobox-data">245 × 135 × 70 mm</td></tr></tbody></table>

The Sharp QT-8D Micro Compet is a small electronic desktop <a href="Calculator" title="Calculator">calculator</a> marketed by <a href="Sharp_Corporation" title="Sharp Corporation">Sharp Corporation</a>. It was the first mass-produced calculator to have its logic circuitry entirely implemented with LSI (<a href="Large-scale_integration" class="mw-redirect" title="Large-scale integration">large-scale integration</a>) <a href="Integrated_circuit" title="Integrated circuit">integrated circuits</a> (ICs) based on MOS (<a href="MOSFET" title="MOSFET">metal-oxide-semiconductor</a>) technology.<a href="#cite_note-oldcalc-1">[1]</a><a href="#cite_note-3">[note 1]</a> When it was introduced in late 1969,<a href="#cite_note-vintage-4">[3]</a> it was one of the smallest electronic calculators ever produced commercially. Previous electronic calculators had been about the size of a typewriter and had logic circuits built from numerous discrete <a href="Transistor" title="Transistor">transistors</a> and <a href="Diode" title="Diode">diodes</a> or small- to medium-scale ICs.<a href="#cite_note-oldcalc-1">[1]</a> The QT-8D's logic circuits were packed into just four LSI ICs.<a href="#cite_note-vintage-4">[3]</a>

The QT-8D was released in Japan at a price of 99,800 <a href="Japanese_yen" title="Japanese yen">Japanese yen</a>, a new low for electronic calculators.<a href="#cite_note-dentaku-5">[4]</a> The retail price in the United States was $395 in 1970,<a href="#cite_note-oldcalc-1">[1]</a><a href="#cite_note-comphistmuseum-6">[5]</a> equivalent to about $2,790 in 2021.<a href="#cite_note-inflation-7">[6]</a>

<div class="mw-heading mw-heading2"><h2 id="Operation_and_design">Operation and design</h2></div>

The QT-8D only performs the four basic arithmetic operations of addition, subtraction, multiplication, and division.<a href="#cite_note-oldcalc-1">[1]</a> Like many calculators intended for business use, the QT-8D adds and subtracts in the style of an <a href="Adding_machine" title="Adding machine">adding machine</a>: after entering each number, the operator presses either the white <style data-mw-deduplicate="TemplateStyles:r1249182868">

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</style><kbd class="keyboard-key nowrap">+=</kbd> key, to add it to the current total, or the red <kbd class="keyboard-key nowrap">−=</kbd> key, to subtract it from the total. However, the QT-8D is unusual in that multiplication and division share a single key <kbd class="keyboard-key nowrap">×÷</kbd>. To multiply or divide, the operator enters the first number, presses <kbd class="keyboard-key nowrap">×÷</kbd>, enters the second number, and then presses either <kbd class="keyboard-key nowrap">+=</kbd> to multiply or <kbd class="keyboard-key nowrap">−=</kbd> to divide.<a href="#cite_note-oldcalc-1">[1]</a> The resulting product or quotient is then added to or subtracted from the total in the usual way, by pressing <kbd class="keyboard-key nowrap">+=</kbd> or <kbd class="keyboard-key nowrap">−=</kbd>.

The keyboard has 15 keys in all and uses magnetic <a href="Reed_switch" title="Reed switch">reed switches</a>, which, although expensive, are extremely reliable.<a href="#cite_note-oldcalc-1">[1]</a>

The display has eight digits, with both a minus sign and an overflow indicator dot on the right hand side.<a href="#cite_note-oldcalc-1">[1]</a> The decimal point is "floating"—it is positioned automatically by the calculator logic. This was an advanced feature for the time; many desk calculators of this era had fixed decimal points and required very wide displays to maintain a minimum level of precision across the entire range of numbers available. The QT-8D's floating decimal allowed its display to be much narrower while still keeping eight digits of precision.<a href="#cite_note-vintage-4">[3]</a>

The display is a <a href="Vacuum_fluorescent_display" title="Vacuum fluorescent display">vacuum fluorescent display</a>, the first such display ever used in a production calculator.<a href="#cite_note-oldcalc-1">[1]</a> It is built from nine individual tubes, one tube for each digit and a single extra tube for the minus sign and overflow indicator. These Iseden "itron" tubes<a href="#cite_note-8">[note 2]</a> have a unique digit style which is very different from today's <a href="Seven-segment_display" title="Seven-segment display">seven-segment displays</a>. Each digit tube uses nine segments to form the digits,<a href="#cite_note-9">[note 3]</a> and these segments are of varying shapes and lengths, producing a distinctive digit style reminiscent of handwritten digits. The digit "0" is only half the height of the other digits.<a href="#cite_note-oldcalc-1">[1]</a> This half-height zero makes it easy to distinguish zeros from other digits, a useful feature since the QT-8D does not have logic to suppress leading or trailing zeros in the display.<a href="#cite_note-vintage-4">[3]</a>

<div class="mw-heading mw-heading2"><h2 id="Development">Development</h2></div>

Because Japanese integrated circuit manufacturers were not yet able to produce the high-density MOS LSI ICs which Sharp needed, Sharp sought help from U.S. semiconductor firms. Sharp eventually made an agreement with <a href="Rockwell_International" title="Rockwell International">Rockwell International</a>, which manufactured the QT-8D's LSI ICs for Sharp based on Sharp's logic designs.<a href="#cite_note-oldcalc-1">[1]</a> Each of the four LSI ICs contains the equivalent of about 700 to 900 transistors, and the ICs are named based on their functions. The NRD 2256 handles numerical read-in and display, converting keyboard <a href="Scancode" title="Scancode">scancodes</a> into digit values and activating the various display tube segments based on digit values. The DC 2266 does decimal-point control, performing the automatic floating-decimal logic and aligning decimal points for arithmetic operations. The AC 2261 controls the arithmetic and provides the registers, and the AU 2271 performs the arithmetic (using a digital adder) and controls input to the registers.<a href="#cite_note-electronics-10">[7]</a><a href="#cite_note-popsci-11">[8]</a><a href="#cite_note-12">[note 4]</a>

By the standards of its time, the QT-8D is quite a fast calculator. Dividing 99999999 by 1, which is the worst case for the simple <a href="Long_division" title="Long division">long division</a> method used on many calculators, takes roughly 200 milliseconds, and addition and subtraction are nearly instantaneous.<a href="#cite_note-oldcalc-1">[1]</a>

The QT-8D is much smaller than earlier calculators; it is about 245 mm (9.6 in) long, 135 mm (5.3 in) wide, and 70 mm (2.8 in) high, and it weighs about 1.4 kg (3.1 lb).<a href="#cite_note-vintage-4">[3]</a><a href="#cite_note-dentaku-5">[4]</a> Although it isn't truly portable, since it needs <a href="Mains_electricity" title="Mains electricity">AC power</a> to operate, it does have a carrying handle on the rear, allowing it to be moved around easily. Its MOS LSI technology also greatly reduced its power usage compared to previous calculators: it has an AC power consumption rating of only 7 <a href="Watt" title="Watt">watts</a>.<a href="#cite_note-oldcalc-1">[1]</a>

This low power usage made it feasible for Sharp to introduce a battery-powered version, the <a href="Sharp_QT-8B" title="Sharp QT-8B">QT-8B</a>, in mid-1970. This was the first mass-produced electronic calculator to be battery-powered. It replaced the QT-8D's integrated <a href="Power_supply" title="Power supply">power supply</a> with a <a href="Rechargeable_battery" title="Rechargeable battery">rechargeable</a> <a href="Battery_pack" title="Battery pack">battery pack</a>, but it was otherwise nearly identical to the QT-8D.<a href="#cite_note-vintage_qt8b-13">[9]</a>

The four ICs of the QT-8D and QT-8B were also used as the basis of the <a href="Sharp_EL-8" title="Sharp EL-8">Sharp EL-8</a>, one of the first mass-produced hand-held electronic calculators, introduced in 1971.<a href="#cite_note-oldcalc-1">[1]</a>

Sharp also built <a href="OEM" class="mw-redirect" title="OEM">OEM</a> versions of the QT-8D for the Swedish office machine company <a href="Facit" title="Facit">Facit</a> and its subsidiary <a href="AB_Addo" title="AB Addo">Addo</a>, which sold them as the Facit 1115 and the Addo-X 9354. These had the same internals as the QT-8D but used a different case and keycaps.<a href="#cite_note-oldcalc-1">[1]</a>

The Soviet-built <a href="Elektronika" title="Elektronika">Elektronika</a> EKVM 24-71, introduced in 1971, was reverse-engineered from the Sharp QT-8D with minor differences.<a href="#cite_note-oldcalc-1">[1]</a><a href="#cite_note-14">[10]</a>

<div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2></div>

<li id="cite_note-3"><a href="#cite_ref-3">^</a> The <a href="Victor_3900" title="Victor 3900">Victor 3900</a>, introduced in 1965, was based on 29 MOS ICs which at the time were referred to as large-scale. But this calculator sold very poorly and only a few thousand were produced, mainly due to unexpected reliability problems with the MOS ICs.<a href="#cite_note-oldcalc-1">[1]</a> Also the boundary for what level of integration qualifies as LSI has shifted over time. Sharp itself described the QT-8D's ICs as "Extra Large Scale Integration" (ELSI), since at the time these ICs were at the leading edge,<a href="#cite_note-sharp_history-2">[2]</a> but this term was never generally adopted and further improvements in integration density soon rendered it meaningless.

</li>

<li id="cite_note-8"><a href="#cite_ref-8">^</a> "Iseden" is an abbreviation for the manufacturer's full name, Ise Denshi Kōgyō Kabushiki Kaisha (伊勢電子工業株式会社, "Ise Electronics Industry Stock Company"), known in English as Ise Electronics Corporation.

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<li id="cite_note-9"><a href="#cite_ref-9">^</a> Some sources say eight segments, but this is incorrect for the specific display tubes used in the QT-8D.

</li>

<li id="cite_note-12"><a href="#cite_ref-12">^</a> The names of the chips which handle the arithmetic apparently changed at some point; an article on the QT-8D from an early 1969 issue of the journal Electronics lists them as the AC 2266 and AU 2276 rather than the AC 2261 and AU 2271.<a href="#cite_note-electronics-10">[7]</a> The specific breakdown in function between the AC 2261 and the AU 2271 is somewhat unclear, since the Electronics article and the Popular Science article aren't consistent.<a href="#cite_note-electronics-10">[7]</a><a href="#cite_note-popsci-11">[8]</a>

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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFRick_Bensene" class="citation web cs1">Rick Bensene. <a rel="nofollow" class="external text" href="http://www.oldcalculatormuseum.com/sharpqt-8d.html">"Sharp QT-8D Electronic Calculator"</a>. The Old Calculator Web Museum. Retrieved September 29, 2010.</cite>

</li>

<li id="cite_note-sharp_history-2"><a href="#cite_ref-sharp_history_2-0">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://sharp-world.com/corporate/info/his/h_company/1969_1970/index.html">"Sharp History — 1969–1970: From Senri to Tenri"</a>. SHARP World. <a href="Sharp_Corporation" title="Sharp Corporation">Sharp Corporation</a>. Retrieved September 30, 2010.</cite>

</li>

<li id="cite_note-vintage-4">^ <a href="#cite_ref-vintage_4-0">a</a> <a href="#cite_ref-vintage_4-1">b</a> <a href="#cite_ref-vintage_4-2">c</a> <a href="#cite_ref-vintage_4-3">d</a> <a href="#cite_ref-vintage_4-4">e</a> <cite id="CITEREFNigel_Tout" class="citation web cs1">Nigel Tout. <a rel="nofollow" class="external text" href="http://www.vintagecalculators.com/html/sharp_qt-8d.html">"Sharp QT-8D "micro Compet""</a>. Vintage Calculators Web Museum. Retrieved September 29, 2010.</cite>

</li>

<li id="cite_note-dentaku-5">^ <a href="#cite_ref-dentaku_5-0">a</a> <a href="#cite_ref-dentaku_5-1">b</a> <cite id="CITEREFShinichiro_Osaki" class="citation web cs1 cs1-prop-foreign-lang-source">Shinichiro Osaki. <a rel="nofollow" class="external text" href="http://www.dentaku-museum.com/calc/calc/1-sharp/1-sharpd/sharpd.html#qt8d">"Sharp desktop calculator: QT-8D"</a>. Dentaku Museum (in Japanese). Retrieved September 29, 2010.</cite>

"...The price, which for the first time for an electronic calculator fell below 100,000 yen, was set at 99,800 yen. (...価格は電卓で初めて10万円を切る99,800円に設定された。, ...kakaku wa dentaku de hajimete 10 man en o kiru 99,800 en ni settei sareta.)"

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<li id="cite_note-comphistmuseum-6"><a href="#cite_ref-comphistmuseum_6-0">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.computerhistory.org/collections/accession/X1347.97">"microCompet (accession number X1347.97)"</a>. <a href="Computer_History_Museum" title="Computer History Museum">Computer History Museum</a>. Retrieved September 29, 2010.</cite>

</li>

<li id="cite_note-inflation-7"><a href="#cite_ref-inflation_7-0">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.bls.gov/data/inflation_calculator.htm">"CPI Inflation Calculator"</a>. <a href="Bureau_of_Labor_Statistics" title="Bureau of Labor Statistics">Bureau of Labor Statistics</a>. Retrieved April 27, 2019.</cite>

</li>

<li id="cite_note-electronics-10">^ <a href="#cite_ref-electronics_10-0">a</a> <a href="#cite_ref-electronics_10-1">b</a> <a href="#cite_ref-electronics_10-2">c</a> <cite class="citation journal cs1"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=mrg6AAAAMAAJ&q=%22au+2276%22">"(article title unknown)"</a>. Electronics. 42: 204. March 1969. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0013-5070">0013-5070</a>. Retrieved September 30, 2010.</cite>

The relevant part of this article is quoted on <a rel="nofollow" class="external text" href="http://www.vintagecalculators.com/html/sharp_qt-8d.html">Nigel Tout's QT-8D page</a>.

</li>

<li id="cite_note-popsci-11">^ <a href="#cite_ref-popsci_11-0">a</a> <a href="#cite_ref-popsci_11-1">b</a> <cite id="CITEREFJohn_R._Free1971" class="citation journal cs1">John R. Free (June 1971). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=sgAAAAAAMBAJ&pg=PA75">"Microelectronics Shrinks the Calculator"</a>. Popular Science. 198 (6): 75. <a href="ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0161-7370">0161-7370</a>. Retrieved September 30, 2010.</cite>

(This article only describes the chips by position, not by name, but images of the logic board from other sources can be used to verify the names of the chips and their corresponding positions.)

</li>

<li id="cite_note-vintage_qt8b-13"><a href="#cite_ref-vintage_qt8b_13-0">^</a> <cite id="CITEREFNigel_Tout" class="citation web cs1">Nigel Tout. <a rel="nofollow" class="external text" href="http://www.vintagecalculators.com/html/sharp_qt-8b.html">"Sharp QT-8B "micro Compet""</a>. Vintage Calculators Web Museum. Retrieved September 29, 2010.</cite>

</li>

<li id="cite_note-14"><a href="#cite_ref-14">^</a> <a rel="nofollow" class="external text" href="http://sfrolov.livejournal.com/77350.html">Sharp QT-8D vs Elektronika 24-71 (in Russian)</a>

</li>

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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.funkygoods.com/calc/m_compet/m_compet.htm">"SHARP Micro Compet QT-8D"</a> (in Japanese).</cite></li>

<li><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.schlepptops.de/wiki/index.php?title=Sharp_QT-8D">"Sharp QT-8D"</a>. Rechnerwiki (in German).</cite></li>

<li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110709020124/http://www.devidts.com/be-calc/desk_08939.html">FACIT: 1115</a> (the Facit OEM version)</li>

<li><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.alciom.com/perso/calc/addo-x/9354j/descrcalc.htm">"Fiche detaillee du modele: Addo-X 9354j"</a> (in French).</cite> (the Addo OEM version)</li>

<li><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20101221025838/http://www.taswegian.com/MOSCOW/24-71.html">"EKBM 24-71"</a>. Museum of Soviet Calculators. Archived from <a rel="nofollow" class="external text" href="http://www.taswegian.com/MOSCOW/24-71.html">the original</a> on 2010-12-21.</cite> (the Soviet clone)</li>

<li><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.leningrad.su/museum/show_calc.php?n=9">"EKVM 24-71"</a>. Soviet Digital Electronics Museum.</cite> (more on the Soviet clone)</li>

<li><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.curtamania.com/curta/database/brand/sharp/Sharp%20QT-8D/index.html">"Sharp QT-8D"</a>. Curtamania.</cite></li>

<li><cite id="CITEREFShirriff2020" class="citation web cs1">Shirriff, Ken (December 2020). <a rel="nofollow" class="external text" href="http://www.righto.com/2020/12/reverse-engineering-clock-chip-in-first.html">"Reverse-engineering the clock chip in the first MOS calculator"</a>.</cite>

<ul><li><cite id="CITEREFShirriff2020" class="citation web cs1">— (December 2020). <a rel="nofollow" class="external text" href="http://www.righto.com/2020/12/reverse-engineering-early-calculator.html">"Reverse-engineering an early calculator chip with four-phase logic"</a>.</cite></li></ul></li></ul>

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</style><div id="Sharp_Corporation417" style="font-size:114%;margin:0 4em"><a href="Sharp_Corporation" title="Sharp Corporation">Sharp Corporation</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Divisions and subsidiaries</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Dynabook_Inc." title="Dynabook Inc.">Dynabook Inc.</a></li>

<li><a href="Sharp_Solar" title="Sharp Solar">Sharp Solar</a></li>

<li><a href="Takaya" title="Takaya">Takaya</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Optonica" title="Optonica">Optonica</a>1</li></ul>

</div></td></tr></tbody></table><div></div></td><td class="noviewer navbox-image" rowspan="9" style="width:1px;padding:0 0 0 2px"><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Joint ventures and shareholdings</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Pioneer_Corporation" title="Pioneer Corporation">Pioneer Corporation</a></li>

<li><a href="Sharp_NEC_Display_Solutions" title="Sharp NEC Display Solutions">Sharp NEC Display Solutions</a> (66%)</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Calculators</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Sharp_EL-500W_series" title="Sharp EL-500W series">EL-500W series</a></li>

</ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Computers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Laptops and portables</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Sharp_Actius" title="Sharp Actius">Actius</a>

<li><a href="Sharp_Actius_MM10_Muramasas" title="Sharp Actius MM10 Muramasas">MM10 Muramasas</a></li></ul></li>

<li><a href="Sharp_WideNote" title="Sharp WideNote">WideNote</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Pocket computers</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Sharp_Wizard" title="Sharp Wizard">Wizard</a></li>

<li><a href="Sharp_Zaurus" title="Sharp Zaurus">Zaurus</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Home computers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="List_of_X68000_games" title="List of X68000 games">list of games</a></li></ul></li>

<li><a href="Hotbit" title="Hotbit">Hotbit</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="List_of_Sharp_mobile_phones" title="List of Sharp mobile phones">Mobile phones</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Televisions and displays</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Sharp_Aquos" title="Sharp Aquos">Aquos</a></li>

<li><a href="Sharp_Nintendo_Television" class="mw-redirect" title="Sharp Nintendo Television">Nintendo Television</a></li>

<li><a href="Quattron" title="Quattron">Quattron</a></li>

<li><a href="Super_Famicom_Naizou_TV_SF1" title="Super Famicom Naizou TV SF1">Super Famicom Naizou TV SF1</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other products</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Famicom_Titler" class="mw-redirect" title="Famicom Titler">Famicom Titler</a></li>

<li><a href="Twin_Famicom" class="mw-redirect" title="Twin Famicom">Twin Famicom</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Tokuji_Hayakawa" title="Tokuji Hayakawa">Tokuji Hayakawa</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Places</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Abenobashi_Terminal_Building" class="mw-redirect" title="Abenobashi Terminal Building">Abenobashi Terminal Building</a></li>

<li><a href="Abeno-ku%2C_Osaka" title="Abeno-ku, Osaka">Abeno-ku</a></li>

<li><a href="Yaita%2C_Tochigi" class="mw-redirect" title="Yaita, Tochigi">Yaita</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div>

<ul><li>1Now integrated into other Sharp divisions or business groupings</li></ul>

<ul><li> Category</li></ul>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-06-08" href="https://en.wikipedia.org/wiki/?title=Sharp_QT-8D&oldid=1294490370">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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