Computer Hardware Components / Input And Output Devices

Computer Hardware Components

• COMPUTER HARDWARE A computer system consists of hardware and software. The physical components of a computer that we can see, touch and feel are called hardware. Computer hardware consists of input/output devices, storage devices, central processing unit (CPU) and the electronic circuitry that links these devices for Communication between …

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Wearable Computing Devices / Basic Operations Of Computer / Classification Of Digital Computers

basic operations of computer

Wearable Computing Devices All machines, components or devices that contain embedded, specialised computers are called computing devices. For example ATM machine, Digital alarm clock, Digital washing machine, Microwave oven, Toys, Cell phones, CD player, etc. are computing devices. All these devices Contain embedded Computer chips which allow these devices to do special computing …

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Short And Long Distance Wireless Communication

SHORT AND LONG DISTANCE WIRELESS COMMUNICATIONS Wireless communication may be differentiated based on the region it covers into short distance and long distance wireless communication. • Short Distance Wireless Communication:- Short distance wireless communication consists of very short distance of few meters (infra-red) to a distance of up to 50 …

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Communication Media And Communication Devices

communication media

Communication Media And Communication Devices:- Guided Communication Media:- It is also called physical or bounded communication media. In this type of media signals pass through a physical path. It uses cables that guide the data signals along a specific path. The following are some important guided media. • Telephone Cable …

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Data Modeling And Entity Relationship Diagram

DATA MODELING AND ENTITY RELATIONSHIP DIAGRAM:- Data modelings the process of designing logical structure of a database with a diagram using text and symbols to represent the way data needs to flow. This diagram is called Entity Relationship diagram EFC Data models define how data is connected to each other …

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Database Design Steps / Planning Database

Database Design Steps / Planning Database

PLANNING A DATABASE (Database Design Steps / Planning Database) :- Database planning is a systematic approach to the development of database that moves from concept to design and development to implementation. A well-designed database promotes Consistent data entry and retrieval. Database should be planned in a systematic way to save time, …

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Database Programming Languages / Basic Database Terminology

DATABASE LANGUAGES SQL (Structured Query Language) is a standard language for accessing and manipulating databases. There are three types of SQL languages for relational databases. These are: • Data Definition Language • Data Manipulation Language • Data Control Language Data Definition Language:- Data Definition Language (DDL) is a computer language …

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