Chorded keyboard (a writing system for the blind) uses either 6 or 8 tactile 'points' from which all letters and numbers are formed. When Louis Braille invented it, it was produced with a needle holing successively all needed points in a cardboard sheet. In 1892, Frank Haven Hall, superintendent of the Illinois Institute for the Education of the Blind, created the Hall Braille Writer, which was like a typewriter with 6 keys, one for each dot in a braille cell. The Perkins Brailler, first manufactured in 1951, uses a 6-key chord keyboard (plus a spacebar) to produce braille output, and has been
Green Dot Corporation Dot raised $20M in funding, including Sequoia Capital as an investor. In 2008, Green Dot ceased to offer prepaid Discover cards. The cards are normal debit cards, and not a line of credit. Purchases are deducted from the balance stored on the card. The user can add more money to the card by paying cash at a retail store's point of sale, or in certain cases from their paycheck. The Green Dot corporation was founded in 1999 by Steve Streit. Green Dot was formerly known as Next Estate Communications. The first debit card to be sold was I-GEN in the