Overview of Business Software & Database Management: Computer Generations & Components, Slides of Introduction to Software Engineering

Download Overview of Business Software & Database Management: Computer Generations & Components and more Slides Introduction to Software Engineering in PDF only on Docsity! BUSINESS SOFTWARES DATABASE MANAGEMENT Abu Bakar LECTURE - 2 INTRODUCTION TO COMPUTERS Abu Bakar LECTURE - 2 GENERATIONS OF COMPUTER: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT First Generation Second Generation Third Generation Forth Generation Fifth Generation Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT First Generation •1951 - 1959 •Vacuum Tubes • Very Large • Very Slow CHARACTERISTICS:  Magnetic Drums (Storage)  Magnetic Tapes (as an input)  Difficult to program  Used machine language & binary language ENIAC , EDVAC , UNIVAC Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Second Generation •1959 - 1963 •Transistors • Smaller • Faster CHARACTERISTICS:  Magnetic Cores  Magnetic Disk (Storage)  Used assembly language  Easier to program PDP , IBM 1401 Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Fifth Generation •Today - Future •AI (Artificial Intelligence) • Small as compared to 4rd • Faster as compared to 4rd CHARACTERISTICS:  AI (Artificial Intelligence)  Very Fast  User Friendly  Easy to use Components of COMPUTER: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT • Allows you to enter data and instructions into a computerInput Device • Hardware component that conveys information to one or more people Output Device • Case that contains the electronic components of the computer that are used to process data System Unit • Records (writes) and/or retrieves (reads) items to and from storage media Storage Device • Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices Communications Device scanner (input device) optical disc drive Labepred (storage device) (output device) hard disk drive (storage device) system unit (processor, memory, and storage devices) USB flash drive ‘) (storage device) card reader/writer (storage device) monitor (output device) keyboard (input device) microphone < : (input device) a external hard disk (storage device) memory cards (storage device) = —=— Web cam (input device) speakers (output device) mouse (input device) (communications device) MOBILE COMPUTERS & DEVICES: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT MOBILE COMPUTER:  Personal computer you can carry from place to place Notebook computers, laptop computers, netbooks, ultra thins, and Tablet PCs MOBILE DEVICES:  Computing device small enough to hold in your hand smart phones and PDAs, e-book readers, handheld computers, portable media players, and digital cameras MOBILE COMPUTERS & DEVICES: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Notebook computer Tablet PC Smart phones and PDAs E-book reader MOBILE COMPUTERS & DEVICES: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Handheld computer Portable media player Digital camera MAINFRAMES: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously. SUPER COMPUTERS: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT A supercomputer is the fastest, most powerful computer  Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second EMBEDDED COMPUTERS: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT An embedded computer is a special-purpose computer that functions as a component in a larger product EXAMPLE OF COMPUTER USERS: Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Power User • Work with multimedia • Use industry- specific software Enterprise User • Communicate among employees • Process high volumes of transactions • Blog Advantages & Disadvantages Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT Advantages of Using Computers Disadvantages of Using Computers Speed Reliability Consistency Storage Communications Health Risks Violation of Privacy Public Safety Impact on Labor Force Impact on Environment ASSIGNMENT Question-1: Briefly describe the HVDs and how it stores data? Question-2: Difference between Mainframes and Servers? Question-3: Explain the Green-Computing? Abu BakarBUSINESS SOFTWARE AND DATABASE MANAGEMENT 5 - Marks