Chapters 1 Flashcards
Document
Ω Ψ³ΨͺΩΨ―
The result of the processing
Output
saving the results in a permanent place for continued access .
Storage
the result of the processing
Output
Hard drive , CD - ROM , Flash drive , Cloud
Storage
are the computerβs physical parts .
Hardware
keyboard & mouse
input hardware
The processor
Processing hardware
Monitor & printer
Output hardware
Disk drive
storage hardware
houses all the chips and circuits a computer needs in order to function .
Motherboard
is a machine that changes information from one form to another
computer
is the raw information or data , that is entered into a computer ,
Input
one reason why computers are so valuable .
Speed
Central Processing Unit
CPU
One of the most important processing devices to a computer
Central Processing Unit ( CPU)
dual core processor
( two CPUs )
quad core processors
( four CPUs ) .
The more cores on the processor
the higher the price .
Random Access Memory
RAM
is called volatile memory , which means it stores data when the computer is on but the data is lost when the computer is turned off
RAM
volatile memory
Ψ§ΩΨ°Ψ§ΩΨ±Ψ© Ψ§ΩΩ ΨͺΩΩΨ¨Ψ© ΩΨͺΩΩΩ ΩΩ Ψ§ΩΨ±Ψ§Ω RAM
Read - Only Memory
ROM
non volatile
ROM
contains the instructions that start the computer when you turn it on .
Read - Only Memory ( ROM )
do not change once this memory is placed on the motherboard .
ROM
do not change once this memory is placed on the motherboard .
ROM
Most hardware used for processing and storage are
inside the computer case .
Tool all the chips and circuits a computer needs in order to function .
Motherboard
Multicore processors have two or more CPUs so they can
process data faster .
Primary Storage
RAM, ROM
Near the CPU is the primary data storage area called
Random Access Memory ( RAM )
which means it stores data when the computer is on but the data is lost when the computer is turned off
RAM is called volatile memory
The instructions in ROM typically do
not change
Other storage hardware allows storage of data permanently , even when
the computer is turned off
Memory cards store data for
mobile devices
Input and output devices are typically separate from the case for most desktop systems .
Peripherals
Scanner
Input
Output
1.Monitor ( LCD ) 2.Touchscreen 3.Datashow 4.Speaker 5.Printer
Input
1.Keyboard
2.Touchscreen
3.A mouse is a pointing device 4.A microphone
5.Scanner
6.A joystick is a game controller 7.Digital cameras
includes all the programs that tell a computer what to do and how to do it .
Software
Two main types of software
1= System
2 = Application
helps the computer work properly .
System software
helps with tasks such as writing a paper or making a graph .
Application software
Two types of system software
1 = Operating system ( OS) 2=Utility software
Application Software / There are four main categories of application software :
1=Productivity software
2 =Graphics software
3 =Communication software
4= Home , education , and entertainment software
is one of the fastest computers in the world and can tackle complex tasks
A supercomputer
is a wireless computer that is small enough to use while holding it in your hand (Palam)
A mobile device
is capable of simultaneously processing data for hundreds or thousands of users
A mainframe computer
is used to serve data to computers connected to a network
A server
is the most powerful and expensive personal computer used by architects engineers designers who work with complex data and programs
A Workstation
is a telephone with computing capabilities
A smartphone
is portable , featuring a touch - sensitive screen used for writing or drawing
A tablet computer
( laptop ) incorporates screen , keyboard , storage and processing
A Notebook computer
fit on desks and run on power from wall outlets
Desktop computers
is designed to meet the computing needs of an individual
A personal computer
keeps things running smoothly by allowing the hardware devices to communicate with one another
Operating system ( OS )
does maintenance and repair jobs that the operating system cannot do itself .
Utility software
Os
Run handwere
Utility
Backup
Storage data even power off
Secondary storage
Temporary
Praimry
ROM
RAM
Permanently
Secondary storage
