PPT-Computer processing system

Five basic operations for converting raw input data into useful information and presenting it to a user Inputting Storing Processing Outputting Controlling Block Diagram of Computer Input Unit. JC Harambearachchi. Recommended Text. 1 Computer Organization and Architecture. by William Stallings . 2 Structured Computer Organisation. . Andrew S. Tanenbaum . A Computer is. A . programmable. 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.. 1. Chapter 1:. . Information Communication Technology. Information Communication Technology. Describe . the five main components of an information system. Describe the difference between the mainframe, minicomputer, supercomputer and the personal . M. . Ramanathan. STTP CAD 2011. Mesh modeling and processing. Mesh model. Consists of only {V, E, F}. Boundary meshes – represent 2D surfaces embed in 3D. STTP CAD 2011. Mesh modeling and processing. High speed programmable ,electronic device. Recognize data by counting discrete signals representing either high(1) or low(0) voltage state of electricity.. Accurate. Output is continuous but obtain when computation is completed.. Chapter . 1:. Introduction . to Computer. 1. Computer. A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use. DIGITAL LITERACY UNIT . *Credit: Mr. . Spinelli. * . AGENDA . THIS OR THAT?. HARDWARE. SOFTWARE. 4 FUNCTIONS OF A COMPUTER. QUIZ . THIS OR THAT. Hard Drive or CD-ROM? . THIS OR THAT. Motherboard or CPU . Hardware vs. Software. Hardware. Physical components. Input/Output. devices. Internal components. Software. The . programs or instructions that tell the computer what to do . Operating systems. Applications. In computing, an . input device.  is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance.. Learning Objectives. LO 1. Discuss foundational information systems (IS) hardware concepts.. LO 2. . Describe foundational topics related to system software, programming languages, and application development environments.. What Is Central Processing Unit?. A Central Processing Unit is also called a processor, central processor, or microprocessor. It carries out all the important functions of a computer. It receives instructions from both the hardware and active software and produces output accordingly. It stores all important programs like operating systems and application software. CPU also helps Input and output devices to communicate with each other. Owing to these features of CPU, it is often referred to as the brain of the computer.. Input Unit. CPU (Central Processing Unit). CPU itself has the following three components −. ALU (Arithmetic Logic Unit). Memory Unit. Control Unit. Output Unit. Input Devices. Keyboard. Mouse. Joy Stick. Describe . why computers are important. . . Explain how computers work. . Explain the difference between computer hardware and computer software. . Describe what an operating system is.. Learning Goals. Data. Term Data may be defined as any collection of raw facts and figures.. For example:. Surveyors of newspaper companies visit door to door to collect data about the type and number of news papers being read by different families. These unprocessed facts do not convey any meaning to the newspaper company, but they can be used as a base for many conclusions after arranging them in order..