November 2007
Intermediate to advanced
736 pages
46h 32m
English
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INTERNAL ORGANISATION OF A CALCULATOR
The diagram in Fig. 46.4 will help us figure out how a calculator works. Figure 46.4 shows three components : the keyboard, the seven-segment displays and the power supply. These parts are the only functional ones not contained in the single LSI IC in most calculators. The keyboard is obviously the input device. The keyboard contains simple normally open switches. The decimal display is the output. The readout unit in Fig. 46.4 contains only six seven-segment displays. The power supply is a battery supply in most inexpensive hand-held calculators. Many modern caculators use solar cells as their power supply. CMOS ICs and LCD make this supply feasible.
The calculator chip (the IC) is divided into several functional ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.