computer_literacy_II

computer_literacy_II - Introduction to Computers Joslyn A....

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
5/18/2011 1 Introduction to Computers March 9, 2010 Joslyn A. Smith
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/18/2011 2 What is a Computer? An electronic device that has the capability of performing the following tasks: Responds to input. Processes the input according to the instructions it gets. Stores the instructions and results of the processing. Provides output in the form of information. Transmits data among machines.
Background image of page 2
5/18/2011 3 A Typical Home/Office Computer System CD Keyboard Mouse Printer Monitor Computer
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/18/2011 4 Classifications of Computers There are four general classifications of computers: Microcomputers Minicomputers Mainframe computers Super computers
Background image of page 4
5/18/2011 5 Microcomputers They are popularly called Personal Computers (PC) They can accommodate only one user at a time There are three types of PCs: Desktop Laptop Notebook Desktop Computer Laptop Computer Notebook Computer
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/18/2011 6 Minicomputers They are mid size computers They can service up to about 200 users simultaneously. Laptop computer Mini Computer Notebook computer Computer terminal Micro computer Router
Background image of page 6
5/18/2011 7 Mainframe Computer They are huge machines that operate as a number of machines. They are extremely fast They have huge storage capacities. They can service thousands of users simultaneously
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5/18/2011 8 Supercomputer They are physically the largest of all the types of computers. They are designed to carryout intensive tasks such as: Weather forecasting Census calculations
Background image of page 8
5/18/2011 9 There are two broad divisions of microcomputer architecture, namely: IBM-compatible, popularly called PC Apple Mac, popularly called Mac These systems are not compatible, due to differences in architectural design Two Broad Divisions of Microcomputers
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10 Hardware System Devices Input Output Devices Primary Memory Secondary Storage Central processing Unit (CPU ) All computers are based on some fundamental design features as shown in the diagram below. Bus
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

computer_literacy_II - Introduction to Computers Joslyn A....

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online