PPT-FILE VS. DATABASES Let’s examine some basic principles about how data are stored in

An entity is anything about which the organization wishes to store data At your college or university one entity would be the student STUDENTS Student ID Last Name First Name Phone Number. Allows us to do some computations in database and extract reduced data for further manipulation Relational Databases brPage 2br What do statisticians need to know about databases Understand the relevance of databases Have familiarity with the basic Alanoud Al Saleh. Classification: . Computers are classified according to their :. Processing capabilities . Storage capacity . Size . Cost . . Types . of . computers:. Supercomputer. mainframe. .. Picture Files. Computer Representation. of Pictures. Common representation is as a . bitmap. .. Two dimensional array of dots called . pixels. (picture element).. The array consists of rows and columns of pixels. . Aalto . University. , . autumn. 2012. Outline. Scenarios. File encryption. Encrypting file system. Full disk encryption. Data recovery. [Acknowledgement: . These slides are partly based on . Microsoft material.]. Tuomas Aura. CSE-C3400 . Information security. Aalto . University. , . autumn. 2014. Outline. Scenarios. File encryption. Encrypting file system. Full disk encryption. Data recovery. Acknowledgement: . DANGER DETECTOR production. Typical CT scanner. So how old is the CT scanner?. http://www.impactscan.org/slides/impactcourse/basic_principles_of_ct/img24.html. 2. nd. generation. http://www.impactscan.org/slides/impactcourse/basic_principles_of_ct/img25.html. Chapter 2. 2. -1. Learning Objectives. Describe . the four parts of the data processing cycle and the major activities in each..  . Describe . the ways information is stored in computer-based information systems.. Dr. Nicholas Gibbins – . nmg@ecs.soton.ac.uk. 2016-2017. Two Questions:. 2. what’s inside a DBMS?. what’s the interface to the DBMS?. Interfaces: DDL . vs. DML. DDL – Data . Definition Language. Database. Relational databases . : dominant information storage/retrieval system. Database. Data stored in tables. Each . row . is a record. Database. Data stored in tables. Each . row . is a record. V103.01. Material obtained from summer workshop in Guildford County. Input Devices. Input Devices: devices that input information into the computer such as a keyboard, mouse, scanner, and digital camera.. Unit 3—Part A Computer Memory Computer Technology (S1 Obj 2-3) Memory Memory: The area in the computer that temporarily holds data waiting to be processed RAM RAM stands for Random Access Memory Data are represented in the computer memory in bits. That is 0s and 1s. . 8bits make up a byte.. Data entered into the computer have to be converted into the machine readable form.. In a better . way of handling complex types of data ( long streams of binary digits). Higher number systems are used in computing to reduce the streams of binary into manageable form, thus helps to improve the processing speed and optimize . Old Dominion University. Credit for some of the slides in this lecture goes to Larson (Berkeley), . Pattersen. (. UiA. ), Hoekstra (. Perficient. Inc.). CS 620 / DASC 600. Introduction to Data Science & Analytics. Old Dominion University. . CS 495/595. Introduction to Data Mining. 1. Credit for some of the slides in this lecture goes to Larson (Berkeley), . Pattersen. (. UiA. ), Hoekstra (Perficient Inc.). NoSQL!.