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Material Type: Assignment; Professor: Caftori; Class: Computers And Society; Subject: Computer Science; University: Northeastern Illinois University; Term: Spring 2005;
Typology: Assignments
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The first tetrapod had 8 fingers on each hand 350 millions years B.C The first evidence of the tally system 30,000 to 20,000 BC
The Invention of the Abacus 1000 to 500 BC
Diagrams used to represent logical concepts have been around in one form or another for a very long time. For example, the Greek philosopher and scientist Aristotle (384 BC to 322 BC) was certainly familiar with the idea of using a stylized tree figure to represent the relationships between (and successive sub-divisions of) such things as different species. Diagrams of this type, which are known as the Tree of Porphyry, are often to be found in medieval pictures.
ten times as fast as the 8008 with 2Mhz. It addresses a memory of 64.000 bytes. There are 6.000 transistors (3micron) mounted on this chip. The First IBM Computer 1981 AD Apple MacIntosh SE/30 (7) Apple introduces one of its best Mac Intosh products ever: MacIntosh SE /30. A built-in hard drive with 128Kb RAM a 1.4Mb floppy that can read PC disks and is powered with a Motorola 60030 CPU. The machine keeps a good price on the second hand market because it is much in demand with business people 1990 AD
Intel introduces the Pentium chip. (in fact it's Intel's 586) An increase of 200% in power of the processor, as is announced by the manufacturers can not be realized. Tests showed that even a 20% increase is not possible with the standard (386/486 or 64020/30/40) available software. The Pentium is plagued with problems. For example a cooling is mandatory because of problems with over heating. The pentium is the first cpu for micro computers with a kind of parallel processing.
Quantum computers promised to solve some of the most difficult mathematical problems exponentially faster than a conventional computer