Its All Geek to Me

parisfawnΤεχνίτη Νοημοσύνη και Ρομποτική

17 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

68 εμφανίσεις

COMPUTER BASI CS

Its All Geek to Me

The Information Processing Cycle

INPUT

OUTPUT

AUXILIARY

STORAGE

PROCESSING


MAIN

MEMORY

INPUT DEVICES (Hardware)


Keyboard


Mouse


Microphone


Scanner


Touch screens


Bar code scanner


Voice recognition


Auxiliary Storage Device



OUTPUT DEVICES (
HARDWARE
)


Useful information that leaves the system


Output Hardware includes
:


Monitor: soft copy


Printers: hard copy


Projector


Voice and music
-

speakers


OUTPUT

ROM

R
EAD
O
NLY
M
EMORY


RAM

R
ANDOM
A
CCESS
M
EMORY



Small


Instructions are installed
permanently at the factory


Cannot be changed


These instructions check
the computer’s resources
and looks for Operating
System


Main
Memory


Temporary

it is erased
when turned off.


It is where programs and
data is stored while being
processed


MEMORY
PROCESSING
HARDWARE

PROCESSING


HARDWARE


Central Processing Unit:
CPU



The Brains or Intelligence of the computer.


Controls input and output


interprets instructions


executes instructions
.



Silicon chip: integrated circuit board


Pentium: name give to a particular
chip



Hertz: the speed of the CPU


Gigahertz: executes a billion instructions per second


Megahertz: executes a million instructions per second


Processors

Come in Many Sizes


Mainframe
: large, powerful, serving many connected
terminals. Super
Computers



Minicomputer
: mid
-
sized, serves more than one
user at a
time



Microcompute
r
: PC, individual
workstation



Laptop
:
portable
,
small



Handheld
: Palm Pilots


What is Data?


Facts used by a computer


Words


Numbers

What two numbers are used in Binary Code?


0 and 1


They are each called a BIT


8 BITS make a BYTE


1 BYTE makes a letter or number


KILOBYTE = 1,024 bytes


MEGABYTE = 1,048,576 bytes


GIGABYTE = 1,024 megabytes


TERABYTE = 1,024 gigabytes


AUXILIARY STORAGE DEVICES


Network Drive (
H: drive)


Hard Disk Drive (
C:drive)


Floppy Disk Drive with
3
½” Floppy Disk (
A:drive)


Jump Drive/Thumb Drive


I
-
Pod


CD Read/Write Drive


DVD


Zip
Drive


AUXILIARY

STORAGE

SOFTWARE


Programs that Make the Computer Work


Operating
System Software


Vista


Windows
XP: GUI (Graphical User Interface)


Unix


Linux



Application Software


Microsoft Word, Excel, Access, Front Page, Publisher


WordPerfect


Illustrator,
Photoshop, Dreamweaver

What is the Boot Process?


The process of starting up a computer from a
halted or powered
-
down condition.


Commands in ROM memory are
followed



The process of loading the
Operating System
software

into Main Memory


Windows 98


Windows XP


Unix