week 1 Flashcards
information
processd data
Data
is raw and unprocessed
machine
processes input to output
data to information
the most important piece of hardware is
microprocessor chip
CPU
Central processing unit
GPU
graphics processing unit
APU
accelerated processing unit
types of computer software
1_ system software (windows, MacOS, Linux)
2_ application software (Chrome, Microsoft Word, Adope Photoshop)
input
enter the data to the computer
processing
data is written to the memory and mainpulated by a set of instructions
output
display the processed data to the user
storage
data may be written to a different type of storage such as hard disk
Types of computer
1_ Mainframe
2_ workstation
3_ microcomputer
4_ microcontroller
5_ supercomputer
Mainframe is
$5,000 to $5 million
used in large organisations ( banks, airlines, insurance company, college)
processes billion of instructions per second
workstation is
referred to as desktop PC, used fo complex scientifics, mathematical, and engineering calculations
microcomputer is
$500- $5,000
Personal computer (PC) (Tower PC, desktop PC, laptop/ Notebook
microcontroller is
tiny microprocessor installed in a smart appliancees
also called (embedded computer)
supercomputer is
fastest computer, thousand of processor, trillion calculations per second, used for (computer simulations, tracking hurricane, understanding ocean currents)
server
a cantral computer that holds collections of data and programs for multiple clients
laptop
one that integrate all desktop PC components within a single potable case
the main feature that is distinguish laptop from a PC
1_ size and wight
2_ input devices
3_ power source
4_ components
PDA
personal digital assistant
the internet of things (IoT)
things that are embedded with the processing and networking functionality which is controlled by very small chips (Home automation, security system, modren car)
the main function of an OS
provide stable environment for software applications to work together
