Categories and Classification of Computers

Categories of Computers There are three major ways to categories Computers. Size & Speed: By size and speed computers divided into 4 classification, depending upon the capacity and speed of processing the data Working Principal: By working behaviors computers divided into 3 types, depending upon the data and how computers process the data Technology: By technology computers divided into 5 generation, each generation has different hardware manufacturing technology. Classification of Computers (By Size & speed) Micro or Personal Computers A...

Generation of Computer

Generation of Computer Generation” in computer talk is a new step in hardware or software technology. Different generations of computer are as follows: Generation Technology Description 1st Generation (1942-1955) Vacuum Taube Vacuum tubes (fragile glass device) were the only electronic component available during those days that possible to make electronic digital computer. These computers can calculate data in millisecond; these were very large in size. Examples: UNIAC, EDVAC, EDSAC 2nd Generation (1956-1964) Transistor The...

Photoshop Tool box Overview

Photoshop Tool box Overview The toolbox contains the main tools for working on images. Click any tool to select and use it. A small arrow next to a tool in the toolbox indicates that the tool also has additional options available. In Photoshop, click and hold your mouse on a tool to see its options. For example, if you click and hold on the select tool, you'll see select options such as eliptical selction, single row selection, etc.     ...

Network basic terms

DATA COMMUNICATION AND NETWORK Terms Communication Communication means to an exchange of information between two or more parties and it can be exchange in a Varity of way. Data or computer Communication is the transmission of data and information over a communications channel between two computers which can be several different things Channel, in communications (sometimes called communications channel), refers to the medium used to convey...

Microsoft Excel 2007

Microsoft Excel 2007 Spreadsheet The word "spreadsheet" came from "spread" in its sense of a newspaper or magazine item (text and/or graphics) that covers two facing pages, extending across the center fold and treating the two pages as one large one. The compound word "spread-sheet" came to mean the format used to present book-keeping ledgers—with columns for categories of expenditures across the top, invoices listed down the left margin, and the amount of each payment in the cell where its row and column intersect—which were, traditionally,...

Microsoftw Word 2007

Microsoft Word 2007 Word Processor Word Processor is software that helps you to create any type of written communication like a letter, a report, a memo, or any other type of correspondence or text data.                   (i.e. Microsoft Word, Word Pad ,Word Star and Word Perfect are the common word processors). But the Microsoft Word is popular word processor. MS Word 2007 Microsoft Word is part of the Microsoft Office. Its main function is for...

INTRODUCTION TO COMPUTER SYSTEM

INTRODUCTION TO COMPUTER SYSTEM The word “Computer” has been derived from the Latin word “Compute” which means to Calculate A computer is an programmable electronic device that can accept data, perform arithmetic (+,-,x,/) & logical (<,>,=,≠) operation on the data, produce the required results. Normally, a computer is considered to be a calculating device that can perform arithmetic and logical operations at a great speed. Components of Computer Basically, a computer consists of four components Hardware: The physical or tangible...