Ch 1 Vocab Flashcards
(23 cards)
Hardware
Physical devices that you see on your desktop
Ubiquitous
Anywhere and everywhere
Software
Programs that give the hardware useful functionality
Bit
Smallest unit of info processed by a computer and consists of a single 0 or 1
Byte
Eight adjacent bits
User interface
Moment to moment communication between a user and the computer
Auxiliary input/output
Devices that allow people to input info into a computer/ devices that allow people to view info produced by a computer
Auxiliary storage devices
Long term storage of data and programs
Network connection
Connection to the internet and thus the rest of the world
RAM
Internal memory, momentary storage of data and programs
CPU
Central processing unit where operations are controlled or executed
System software
Supports basic operations of a computer and allows human users to transfer info to and from the computer
Application software
Allows users to accomplish specialized tasks
Assembly language
Uses mnemonic symbols to represent instructions and data
Machine languages
A type of code whose only symbols are the binary digits 1 and 0
Software development life cycle
The process of development maintenance and demise of a software system
Waterfall model
A series of steps in which a software system trickles down from analysis to design to implementation
Internal memory
Momentary storage of data and programs
Primary memory
RAM
Instance variables
A list of data resources
Information hiding
The principe of providing access to services but not to data resources
Secondary memory
Auxiliary storage devices , long term storage of days and programs
Object oriented programming
Programming with objects
