Before electronics were invented, Mathematicians used abacus's.
Some metalloids are semi-conductors used in computers and calculators, as well as other electronics.
They used the abacus
coal used for electricity, and rare materials witch are not rare and used for electronics there the main reason electronics are expensive
they used people fudging each other and how many times they would hump each other before getting tired...by El ReY A slide rule was commonly used in schools and industry. Chinese also had a basic slide beans up or down to compute
We have much the same electronics as elsewhere - PCs, MP3 players, mobile phones, games consoles etc.
people previously used abacus beads ,calculators etc and they were working manually .
Hand operated and electrical calculators. One of the most famous of the electric calculators was the comptometer. your fingers and your toes. their brains.
yes and no. As long as it is being used for calculators and learning sources it should be okay. Cell phones should be okay if you are not texting and is used in emergencies only.
Two examples are abacus and slide rule
Annuity calculators are used to calculate the returns on investments made in annuities.
Mental MAth or Scrap Paper
LCD (Liquid Crystal Display) is used in a variety of electronics. They are used extensively calculators, wrist-watches, portable CD players, and MP3 players (to name a few).
Calculators are used for solving calculations which are beyond normal reasoning
Enigma was way before computers, it was done by hand and crude mechanical calculators.
Calculators are used to calculate, or solve math problems to come up with solutions.Hope that helped!
GPA calculators are used for College students to keep track of their Grade Point Average.
It is used to run computers. The computer either has a switch on(1) or switch off(0). It is used in most electronics like computers, calculators, and to circulate electriciy.
well it is used for calculating numbers and would be useful but usually calculators are not used during exams as it is a basic rule for not using them !
Trigonometry is used effectively in electronics.
I recommend http://banking.about.com/library/calculators/bl_LoanAmortizationCalculator.htm as an excellent website for amortization calculators that can be used in Microsoft excel
Electronics field deals with electronic equipments and circuits like computer watches calculators and radars etc, and it also deals with the devices which are used by us in current days like a cell phone, printer and other. While telecommunication deals with telephony and telegraphy.