Appropriate age difference dating calculator

19-Jul-2016 00:36 by 8 Comments

Appropriate age difference dating calculator

Not having a calculator for math through grade 12 made me good at doing hand calculations, and gave me a great appreciation for calculators.The Calculator Museum is divided into several sections generally by manufacturer. LCD displays usually have black numbers against a silver background. I took two modern 1.2 volt AA rechargeable Ni-MH batteries and put them in a battery holder I got with a model electric car kit.

The QT-8D was nevertheless not only much smaller than prior electronic calculators, but also much less expensive.

While I was in high school (1971-1975) the first pocket calculators came out.

I envied my friend's TI SR-50 scientific calculator which cost about 0 (over 0 in today's dollars).

popular graphing calculator purchased 2001 for about 0. (1984) a small printing LCD financial calculator using thermal printing.

The TI 83 has a Z80 family processor, like the Kaypro II computer. Similar to the TI 5008 above with some of the financial capabilities and styling of the TI BA35 above. Small for a printing calculator at roughly 6" X 3" X 1".

It has a green fluorescent display with strange shaped numerals including half height zeros. (Other images: bottom, label) released May 15, 1973, this is the first Sharp LCD calculator and one of the first LCD calculators ever.

I purchased mine in April 2009 at a La Jolla, CA estate sale for . The first is the Lloyd's Accumatic 100, produced by Rockwell in 1972, according to Vintage Calculators.

My dad got the family a Sharp ELSI 8107 with basic operations when I was a senior in high school.

I bought a Commodore scientific calculator while a freshman or sophomore at UCSD for (see Vintage Technology Museum for an example) and a beautiful Sharp LCD scientific calculator (below) a year or two later for about when the Commodore broke.

Both the calculator and the screen are in good cosmetic and working condition except for identification markings from the school it was used at prior to being disposed of as surplus.

It also came with a Poloroid magnifier to magnify the view screen image and a hard plastic case, padded inside, to store all the items.

The largest holdings are Texas Instrument (TI) calculators. At the time of LED displays, there were also vacuum fluorescent displays displaying greenish or bluish numbers. I put the two wires that attach to the battery holder into the two central holes in the calculator's battery connector experimenting to see which wire went into which hole. The Ni-MH batteries can be removed and charged in their own charger. Originally it used a BP77 rechargeable battery pack but the seller converted it for use with a 9 volt battery.