Computer and its main three types along with Classifications.pptx

Computer and its Types and Classification

1. CLASSIFICATIONS OF COMPUTERS

2. CLASSIFICATIONS OF COMPUTERS Computers may be classified into three categories namely: (1) According to purpose – their goals and aims for a variety of tasks (2) According to types of processing – their special uses in different fields of work, and (3) According to capacity – with their ability to perform a task, as well as the maximum number of programs they

3. CLASSIFICATIONS OF COMPUTERS ACCORDING TO PURPOSE: 1. General Purpose 2. Special Purpose

4. CLASSIFICATIONS OF COMPUTERS ACCORDING TO PURPOSE: 1. General Purpose - handle variety of tasks, versatile, less efficient, examples are personal computer, PDA 2. Special Purpose - dedicated to a specific task, more efficient because of specialized programs, Faster processing, examples are play station, word processor

5. CLASSIFICATIONS OF COMPUTERS ACCORDING TO TYPES OF PROCESSING : 1. Analog - Machines that represent variables or quantities using physical analogies, examples are Speedometer, Clock, and Thermometer 2. Digital - Machines that specialize in counting, Use discrete numbers, result obtained is precise and repeatable, examples are digital clock, digital thermometer, and calculator 3. Hybrid - Machines that incorporate measuring capabilities of the analog devices and the counting capability of the digital devices, examples are Ana- Digi watches (watches with both analog and digital capabilities)

6. CLASSIFICATIONS OF COMPUTERS ACCORDING TO TYPES OF PROCESSING : Analog Digital Hybrid

7. CLASSIFICATIONS OF COMPUTERS ACCORDING TO CAPACITY MICROCOMPUTER MINI COMPUTER MAINFRAME COMPUTER SUPER COMPUTER

8. MICRO COMPUTER also known as Personal computer used in homes, offices; for individual and corporate uses single users, Usually stand-alone to other computers but generally used to carry out processing for a single user price ranges from 25,000.00 – 250,000.00 speed of processor is 5 – 20 MIPS storage capacity is 32 Mb – 256 Mb of primary storage No unusual power required for environment considerations; may fit on top of a table or desk examples are desktop, notebook, laptop, palmtop, personal digital assistant (PDA), information appliances, network computers, technical workstations

9. MINI COMPUTER midrange computer For use by companies needing storage and processing requirements, for more computer power Multiple users, less than 100 users price ranges from 250,000 – 10 Million speed of processor is 25 – 100 MIPS storage capacity is 32 Mb – 512 Mb of primary storage Requires controlled environment; Occupies own floor space, like the size of a file cabinet examples are Network servers, web servers, multiple use systems

10. MAINFRAME COMPUTER large scale computer for medium to large size business; Used by business and government to provide centralized storage processing and management of data of large amount Multiple users greater than or equal to 100 users price ranges from 10 Million – 50 Million speed of processor is 440 – 4,500 MIPS; May have several processors storage capacity is 50 Mb – several gigabytes of primary storage Requires controlled environment; Requires full time operators; Housed in a cabinet where peripherals are in separate cabinets examples are Enterprise systems, transaction processors, super server

11. SUPER COMPUTER Used to compute intensive tasks Designed for large-scale complex and scientific applications Multiple users price ranges from 10 Million – 2.5 Billion speed of processor is 4 – 10 times faster than mainframes, Several processors, 60 Billion – 3 Trillion MIPS, Fastest, most processing power storage capacity is 8,000 Mb+ + Requires controlled environment; Space needed may be the size of a car examples are Scalable servers, Cray Computer, IBM Deep Blue Super Computer

12. REFERENCES 1. Albano, Gisela May A., et.al. (2003). Introduction to Information Technology. Meycauayan , Bulacan : Trinitas Publishing Inc. 2. Andes Sr., Antonio M. (2003). Introduction to Computer. Philippines: World Class Printing and Packaging.