This document discusses the history and development of information technology from the 1950s to the present. It covers the creation of the first computers in the 1950s, the development of microprocessors, and the rapid growth of wireless communication technologies like cellular networks. It also describes how computer networks allow for the linking of computers, which greatly increases their power and adaptability. Key aspects of modern computer networks include personal computers, local servers, mainframe computers, and software for operating systems, applications, and artificial intelligence.

1. THE INFORMATION
TECHNOLOGY
REVOLUTION
C A R L A G Ó M E Z
S I G
2 0 1 8 - 1

2. DEVELOPMENT OF THE FIRST
COMPUTERS IN THE 1950S

3. THE BRAINS OF
MODERN COMPUTERS ARE
MICROPROCESSORS

4. ANOTHER TREND HAS BEEN THE RAPID
GROWTH OF WIRELESS COMMUNICATION
TECHNOLOGIES, PARTICULARLY
CELLULAR COMMUNICATIONS.

5. CELLULAR SERVICE
WAS FIRST OFFERED
IN THE U.S. IN 1983.

6. SINCE 1990 CELLULAR SERVICE HAS SPREAD RAPIDLY
• Wireless communication facilitates the linking together of
computers,
• which greatly increases their power
• Adaptability
• Wireless communication facilitates the linking together of
computers

7. COMPUTER NETWORKS

8. NETWORKING IS THE EXCHANGE OF INFORMATION THROUGH A
GROUP OR NETWORK OF INTERLINKED COMPUTERS

9. THREE-TIER
• At the outer nodes are the personal computers (PC) on the desks of individual users
referred to as clients
• These are linked to a local server, a high-powered mid-range computer that “serves”
the client personal computers
• Servers store software programs that can be run more effectively on the server. d.
Servers may also manage several printers, store data files, and handle email
communications
• Servers store software programs that can be run more effectively on the server. d.
Servers may also manage several printers, store data files, and handle email
communications

10. MAINFRAME COMPUTERS
• Mainframes are large and powerful
computers that can be used to store
and process vast amounts of
information
• The mainframe may be connected to
main frames in other organizations
and to LANs in other organizations

11. A MANAGER CAN COMMUNICATE
ELECTRONICALLY WITH OTHER
INDIVIDUALS HOOKED INTO THE
SYSTEM, WHETHER THEY ARE IN THE
MANAGER’S LAN OR ANOTHER LAN

12. SOFTWARE DEVELOPMENTS
• Operating system software tells the computer hardware how to run.
• Applications software, such as programs for word processing or database
management, is software developed for a specific task or use
• Artificial intelligence has been defined as behavior by a machine that, if performed by a
human being, would be called intelligent
• Speech recognition software is another development that is starting to impact the
manager’s job

13. THANKS