Christionna's Paper
Mc2Stem
Computer hardware engineer
Computer hardware engineer
Christionna Kern
Mc2Stem
Computer hardware engineer
Computer hardware engineer
Christionna Kern
History
The first computer mouse was invented in 1963 by Douglas Engelbart at the Stanford Research Institute. (He is also one of the inventors of hypertext.) The first mouse used two wheels positioned at a 90-degree angle to each other to keep track of the movement (see picture below). The ball mouse wasn’t invented until 1972, and the optical mouse was invented circa 1980 although it didn’t come to popular use until much later. Douglas Engelbart never received any royalties for his invention and his patent had run out by the time the mouse became commonplace in the era of home PCs.
The IBM 5100 Portable Computer was introduced in 1975, weighed 25 kg (55 lb), was the size of a small suitcase and needed external power to operate. It held everything in the same unit, packing in a processor, ROM (several hundreds of KB) and RAM (16-64 KB), a five-inch CRT display, keyboard and a tape drive, which was an amazing feat at the time. It also came with built-in BASIC and/or APL. The different models of the IBM 5100 sold for $8,975 – $19,975.
The first laptop/notebook was the Grid Compass 1100 (called the GRiD) and was designed in 1979 by a British industrial designer, Bill Moggridge. The computer didn’t start selling until 1982, then featuring a 320×200 screen, an Intel 8086 processor, 340 KB of magnetic bubble memory (a now obsolete, non-volatile memory type) and a 1200 bps modem. It weighed 5 kg (11 lb) and cost $8-10,000. The GRiD was mainly used by NASA and the US military.
The first Apple personal computers (Apple I) were designed and hand-built by Steve Wozniak. The Apple I went on sale in 1976 for the price of $666.66. Only about 200 units were produced. The Apple I was basically just a processor with a total of 8KB of RAM, a display interface and some additional functionality. To have a
Computer hardware engineer
Computer hardware engineer
Christionna Kern
Mc2Stem
Computer hardware engineer
Computer hardware engineer
Christionna Kern
History
The first computer mouse was invented in 1963 by Douglas Engelbart at the Stanford Research Institute. (He is also one of the inventors of hypertext.) The first mouse used two wheels positioned at a 90-degree angle to each other to keep track of the movement (see picture below). The ball mouse wasn’t invented until 1972, and the optical mouse was invented circa 1980 although it didn’t come to popular use until much later. Douglas Engelbart never received any royalties for his invention and his patent had run out by the time the mouse became commonplace in the era of home PCs.
The IBM 5100 Portable Computer was introduced in 1975, weighed 25 kg (55 lb), was the size of a small suitcase and needed external power to operate. It held everything in the same unit, packing in a processor, ROM (several hundreds of KB) and RAM (16-64 KB), a five-inch CRT display, keyboard and a tape drive, which was an amazing feat at the time. It also came with built-in BASIC and/or APL. The different models of the IBM 5100 sold for $8,975 – $19,975.
The first laptop/notebook was the Grid Compass 1100 (called the GRiD) and was designed in 1979 by a British industrial designer, Bill Moggridge. The computer didn’t start selling until 1982, then featuring a 320×200 screen, an Intel 8086 processor, 340 KB of magnetic bubble memory (a now obsolete, non-volatile memory type) and a 1200 bps modem. It weighed 5 kg (11 lb) and cost $8-10,000. The GRiD was mainly used by NASA and the US military.
The first Apple personal computers (Apple I) were designed and hand-built by Steve Wozniak. The Apple I went on sale in 1976 for the price of $666.66. Only about 200 units were produced. The Apple I was basically just a processor with a total of 8KB of RAM, a display interface and some additional functionality. To have a
Cited: "The History of PC Hardware, in Pictures." Royal Pingdom RSS. N.p., n.d. Web. 30 Jan. 2013. "Summary." U.S. Bureau of Labor Statistics. U.S. Bureau of Labor Statistics, n.d. Web. 30 Jan. 2013. "Tim Berners-Lee." About.com Inventors. N.p., n.d. Web. 30 Jan. 2013. http://bks8.books.google.com/books?id=Fm9Do3xbYcQC&printsec=frontcover&img=1&zoom=1&edge=curl&imgtk=AFLRE70KqfwP5NsMG7LrYmVDhTxX6Adfia9SuXzPWxG2LwZCd4EbmGFYC_AK6z1H4sZofegdNm_UCxGjGeArkv8xnl6lS_KmcnFc2oA7bclmw8TTTv9nt0ceZ-ARcmRXyChRQ-0aIPBT "Association of Computer Professionals." Professional Courses -. N.p., n.d. Web. 30 Jan. 2013. BYE