HISTORY OF DEVELOPMENT OF INFORMATION TECHNOLOGIES

From a manual account to a computer

S TAGES OF I NFORMATION T ECHNOLOGY D EVELOPMENT MANUAL ACCOUNT

CALCULATIONS IN THE ELECTRONIC EPOCH Egyptian designations

S TAGES OF I NFORMATION T ECHNOLOGY D EVELOPMENT FIRST MECHANICAL MACHINES

LOGARITHMIC RULER English mathematician William Otred created the first version of the logarithmic ruler. The ruler allows performing several mathematical operations, including multiplication and division of numbers, raising to a power (most often a square and a cube), calculating square and cubic roots, and other operations.

CHICKARD MACHINE Professor Wilhelm Schickard, in 1632, creates an account machine This first mechanical machine could add and subtract, and, according to other sources, multiply and divide

MECHANICAL CALCULATOR The first mechanical calculator (Latin calculator "counter"), which could add, multiply, subtract and divide, was created by Charles Xavier Thomas, the French inventor in 1820.

S TAGES OF I NFORMATION T ECHNOLOGY D EVELOPMENT MECHANICAL TECHNOLOGY

BUSH ANALOGUE COMPUTER Vanivar Bush American engineer and developer in 1927 developed a mechanical analog computer

S TAGES OF I NFORMATION T ECHNOLOGY D EVELOPMENT ELECTRONIC TECHNOLOGY

COMPUTER CUZE Konrad Zuse creates the first computer Z3, which possesses all the properties of a modern computer.

KEY STAGES OF COMPUTER DEVELOPMENT Vacuum triode Bipolar transistor Integrated Circuit Large integrated circuit Extra large-scale integrated circuit

M ODERN MOBILE PHONES HAVE CAPACITIES THAT ARE NOT INFERIOR TO PERSONAL COMPUTERS 2-3 YEARS AGO. T HUS, YOU CAN SEE THAT THE SIZE OF COMPUTERS IS DECREASING, AND THE PERFORMANCE IS INCREASING. Acer Aspire 2930 (2009) - 2-core processor, 2 GB 512 MB of video memory Samsung Galaxy S3 (2012) - 4-core processor, 1 GB of RAM, 4-core video processor

THE LAW OF MUR Moore's law is an empirical observation originally made by Gordon Moore, according to which the number of transistors placed on an integrated circuit chip doubles every 24 months. In other words, the capacity of the produced processors doubles every two years.