PPT-Computer Storage & Representing Numbers

CE 311 K Introduction to Computer Methods Daene C McKinney Introduction Computer Storage Binary Numbers Bits amp Bytes Computer Storage and Number Representation Computer Storage Numbers and letters. Binary Systems. Humans. Decimal Numbers (base 10). Sign-Magnitude (-324). Decimal Fractions (23.27). Letters for text. Computers. Binary Numbers (base 2). Two’s complement and sign-magnitude. Binary fractions and floating point. Classification of Computers. Types of Computers. 1. Analog Computers. Analog computers are used to process continuous data. Analog computers represent variables by physical quantities. Thus any computer which solve problem by translating physical conditions such as flow, temperature, pressure, angular position or voltage into related mechanical or electrical related circuits as an analog for the physical phenomenon being investigated in general it is a computer which uses an analog quantity and produces analog values as output. Thus an analog computer measures continuously. Analog computers are very much speedy. They produce their results very fast. But their results are approximately correct. All the analog computers are special purpose computers.. More technically referred to as Primary Storage. Computer Storage. Computers have two kinds of storage:. Primary Storage. Secondary Storage. Primary storage is also called memory.. Secondary storage is often called storage.. What are they?. Electronic devices operating under the control of instructions stored in its own memory that can:. accept data (input). process the date according to specified rules (process). produce results (output). Optical Storage Devices. Most widely used and reliable storage devices. Use laser technology to store data and read data to and from the disk. Most popular storage devices are:. CD-ROM drive. DVD-ROM drive. You will learn common technical specifications. Technical Specifications. As mentioned this version of this course will focus on more practical benefits than previous versions.. So rather than presenting a long list of hardware specifications and how things work for it’s own sake, the focus will be on providing some of the information you will see when actually buying a machine.. Chapter Contents. Section A: Personal Computer Basics. Section B: Microprocessors and Memory. Section C: Storage Devices. Section D: Input and Output Devices. Section E: Hardware Security. Chapter 2: Computer Hardware. This Half Term’s Project. Computer Programming – The Scratch Calculator. Demonstration. Lesson Objectives. Learning . Objectives. Understand how to create a sprite. Understand how to create a new background. Computer Literacy BASICS: A Comprehensive Guide to IC. 3. , 3. rd. Edition. Morrison / Wells. About the Presentations. The presentations cover the objectives found in the opening of each lesson.. All lesson objectives are listed in the beginning of each presentation.. A computer has various parts, and each part performs a specific function. These parts can be classified as input devices, output devices, CPU and memory, motherboard, expansion cards, storage devices and services, and ports and connections.. 2. Analog and Digital Information. Computers are finite! . How do we represent an infinite world?. We represent . enough. of the world to satisfy our . computational. needs and our senses of . sight . JMW 2012. Get your brains logged on!. Put these terms in order (smallest to largest):. Terabyte. Megabyte. Bit. Gigabyte. Byte. Kilobyte. Get your brains logged on!. Put these terms in order (smallest to largest):. Data Representation. Instructor: Yang Mu. Outline. Analog vs. Digital. Data Compression. Text. Image and Graphic. Video. 3/3/2014. Data and Computers. Computers are . multimedia. devices. , dealing . Chapter 1. Compilers/interpreters. Programs must be converted to machine language. . Compiler – converts a program into a separate machine language program. That program can then be executed whenever needed. .