COMPUTERS Computers are like Old Testament gods; lots of rules and - PowerPoint PPT Presentation

COMPUTERS “Computers are like Old Testament gods; lots of rules and no mercy.”

WHAT IS A COMPUTER? A computer is an electronic device, operating under the control of instructions stored in its own memory. Collects Produces Processing (Input) (Output)

CHARACTERISTICS OF COMPUTER 1. Speed: Computer is very fast and accurate device. 2. Accuracy: Computer results are highly accurate. 3. Memory: Computers have a large amount of memory to hold a very large amount of data or information.

CHARACTERISTICS OF COMPUTER 4. Diligence: Computer is free from problems like lack of concentration and confusions & tiredness. 5. Versatility: We can perform different types of tasks on computer. 6. Power of Remembrance: Unlike humans, computer can store things for unlimited period of time.

Input Device: Allows you to enter data and instructions into a computer. Output Device: Hardware component that THE COMPONENTS conveys information to one or more people. System Unit: Case that contains the OF A COMPUTER electronic components of the computer that POWE R OF CRE ATI VI TY are used to process data. Storage Device: Holds data, instructions, and information for future use. Communications Device: Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices

ADVANTAGES DISADVANTAGES • Speed • Health Risks • Reliability • Violation of Privacy • Consistency • Public Safety • Storage • Impact on Labor Force • Communications • Impact on Environment

A network is a collection of computers NETWORKS and devices connected together, often AND THE wirelessly, via communications devices INTERNET and transmission media

C O M P U T E R S o f t w a r e , a l s o c a l l e d a S O F T W A R E p r o g r a m , t e l l s t h e c o m p u t e r w h a t t a s k s t o p e r f o r m a n d D e s k t o p o r w e b a p p h o w t o p e r f o r m t h e m A B C D E F G H I

C A T E G O R I E S O F C O M P U T E R S

C O M P U T E R A P P L I C A T I O N S I N S O C I E T Y S c i e n c e P u b l i s h i n g T r a v e l M a n u f a c t u r i n g