The Commodore 786D calculator was introduced in 1977. Manufactured by Commodore in both England and Japan, it was designed to be a cost-effective option in a highly competitive market. The 786D is a 4-function calculator that includes percentage calculations and multi-key memory functions, making it a practical tool for everyday …
The Commodore 776M calculator, also known as the CBM 776M, was a cutting-edge device released in 1975 by Commodore Business Machines Inc., based in Palo Alto, California. This calculator was notable for its innovative design, centered around a new integrated circuit (IC) and a vivid LED display. The 776M’s elongated …
The Commodore 784D calculator, introduced in the mid-1970s, is a testament to the technological advancements of its time, offering a blend of functionality and aesthetic design that was characteristic of Commodore products. This calculator, manufactured in the United Kingdom, is notable for its distinctive appearance and unique features, despite some …
The Commodore 9R-25 calculator, introduced circa 1976, is a great example of the technological advancements in personal computing devices of its era. Manufactured by Commodore, a company renowned for its contributions to the computing industry, this calculator offers a blend of functionality and aesthetic design that captures the essence of …
The Colex 812-R calculator, introduced in 1975, is a robust and feature-rich device that stands out for its unique design and functional capabilities. Manufactured by Colex in Hong Kong, this calculator is encased in a glossy white plastic shell with a black smooth plastic front, reminiscent of the Commodore PET …
The Clever 2101 calculator, introduced around 1978, is a compact and unusual model that bears similarities to other calculators of its time, such as the Decimo Vatman Mini MII. This calculator is a product of Clever Electronic Calculator, although the specific manufacturing details remain obscure, with some speculating that it …
The Citizen 831RD calculator, introduced in the late 1970s, is a robust and versatile calculator designed for both desktop and handheld use. Manufactured by Citizen Business Machines Inc. in Japan, this calculator is notable for its distinctive design and reliable functionality. The calculator’s dimensions are approximately 86mm in width, 165mm …
The Citizen 830R calculator, introduced in 1976 by Citizen Business Machines Inc., is a robust and versatile device that combines functionality with a sleek design. This calculator is notable for its sturdy construction and reliable performance, making it suitable for both desktop and handheld use. Physical Characteristics The Citizen 830R …
The Citizen 810R, released in 1974 is a sturdy device, equally at home on a desk or in hand and embodies the transitional period between bulky desktop machines and truly portable calculators. Measuring 87mm x 150mm x 33mm and weighing a substantial 276g including its rechargeable batteries, the 810R was …
The Citizen 801D calculator, released around 1976, is a sleek device, with its light grey front and dark grey back. It measures approximately 82mm x 136mm x 25mm and weighs a mere 132g without batteries. The calculator’s design showcases a rounded two-piece plastic case, featuring a flush, wrap-around green plastic …
