electronic subtraction
11Binary-coded decimal — In computing and electronic systems, binary coded decimal (BCD) is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits …
12Curta calculator — Curta (Type I) mechanical calculator shown in the operational position (left hand). The crank is turned with the right hand. The Curta is a small, hand cranked mechanical calculator introduced in 1948. It has an extremely compact design: a small… …
13Sumlock ANITA calculator — The ANITA Mark VII and ANITA Mark VIII calculators were launched simultaneously in late 1961 as the world s first all electronic desktop calculators. Designed and built by the Bell Punch Co. in Britain, and marketed through its Sumlock… …
14Addition — is the mathematical process of putting things together. The plus sign + means that two numbers are added together. For example, in the picture on the right, there are 3 + 2 apples meaning three apples and two other apples which is the same as… …
15Juegos de PlayStation — Anexo:Juegos de PlayStation Saltar a navegación, búsqueda Esta es una lista de juegos para la consola de videojuegos PlayStation de Sony, organizada alfabéticamente. Contenido: Arriba 0 9 A B C D E F G H I J K L M N Ñ O P Q R S T …
16Anexo:Juegos de PlayStation — Esta es una lista de juegos para la consola de videojuegos PlayStation de Sony, organizada alfabéticamente. Índice: principio A B C …
17Comptometer — Model ST (1930s) …
18Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
19Transmission (mechanics) — Gearbox redirects here. For the video game developer, see Gearbox Software. 5 speed gearbox + reverse, the 1600 Volkswagen Golf (2009). A machine consists of a power source and a power transmission system, which provides controlled application of …
20Decibel — This article is about the ratio of measures. For sound or acoustic level, see Sound pressure. For other uses, see Decibel (disambiguation). Attenuation chart of an RG 6 Coaxial cable, measured in decibels per 100 feet of cable The decibel (dB) is …
