Flashcards in Ch 1 Vocab Deck (23)
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Ubiquitous
Anywhere and everywhere
1
Hardware
Physical devices that you see on your desktop
2
Software
Programs that give the hardware useful functionality
3
Bit
Smallest unit of info processed by a computer and consists of a single 0 or 1
4
Byte
Eight adjacent bits
5
User interface
Moment to moment communication between a user and the computer
6
Auxiliary input/output
Devices that allow people to input info into a computer/ devices that allow people to view info produced by a computer
7
Auxiliary storage devices
Long term storage of data and programs
8
Network connection
Connection to the internet and thus the rest of the world
9
RAM
Internal memory, momentary storage of data and programs
10
CPU
Central processing unit where operations are controlled or executed
11
System software
Supports basic operations of a computer and allows human users to transfer info to and from the computer
12
Application software
Allows users to accomplish specialized tasks
13
Assembly language
Uses mnemonic symbols to represent instructions and data
14
Machine languages
A type of code whose only symbols are the binary digits 1 and 0
15
Software development life cycle
The process of development maintenance and demise of a software system
16
Waterfall model
A series of steps in which a software system trickles down from analysis to design to implementation
17
Internal memory
Momentary storage of data and programs
18
Primary memory
RAM
19
Instance variables
A list of data resources
20
Information hiding
The principe of providing access to services but not to data resources
21
Secondary memory
Auxiliary storage devices , long term storage of days and programs
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