Chapter 1 RG Flashcards
(9 cards)
Computer
An electronic programmable data processing machine.
System
Collection of parts that work together for some defined purpose.
Computer system
Collection of hardware and software that works together to achieve some data processing task.
Why Are Computer Systems Important
improved quality in manufacturing- greater accuracy of machines
cheaper manufacturing- automation
faster access to information- jobs done quicker
online selling/buying
Automated Teller Machines (ATMs)
Communication (Email, SMS, cell phones)
Examples of Computer Systems 1
Car Engine Management
Input- Temp, CO2 levels, Speed
Output- signals to carburettor, data to engine diagnostics
Processing- check against set parameters, produce fault codes
Other Computer System Examples
Holiday Booking
ATM
SatNav
Types of Computer System
General Purpose
Dedicated Systems
Control Systems
General Purpose Systems
Designed to perform multiple tasks and can be loaded with variety of applications in order to be used for variety of purposes. E.g. PCs, Tablet Computers
Dedicated Systems
Produced to perform a single function
