BasicComputerConcepts Chapter4 Objec;ves15 ReviewQues;ons - PDF document

8/29/08
 Basic
Computer
Concepts
 Chapter
4
 Objec;ves
1‐5
 Review
Ques;ons
 • In
plain
English,
what
is
AFS?
 • Where
was
AFS
created/developed?
 • What
is
the
exact
line
that
we
type
to
‘map’
 our
AFS
drive?
 • What
does
FTP
stand
for?
 • To
Tp
in
the
browser,
what
should
we
type?
 SWBAT
 Students
will
be
able
to
…
 • Define
the
term
computer
 • Iden;fy
the
four
basic
compu;ng
func;ons
 • Iden;fy
the
different
types
of
computers
 • Describe
hardware
devices
and
their
uses
 • Iden;fy
types
of
soTware
and
their
uses
 1


8/29/08
 What
is
a
computer?
 Is
this
a
computer?
 Is
this
a
computer?
 2


8/29/08
 Is
this
a
computer?
 Is
this
a
computer?
 Then,
what
is
a
computer?
 • A
computer
is
a
programmable
electronic
 device
that
has
input,

process,
output
and
 store
data.
 3


8/29/08
 Types
of
Computers
 1. Microcomputers
 2. Servers
 3. Mainframes
 4. Supercomputers
 5. Embedded
Computers
 Types
of
Computers
 Microcomputers
 Servers
 • desktop
 • manage
resources
for
a
 group
of
networked
 • notebooks/laptops
 computers
(eg.
AFS)

 • tablet
PCs
 • mobile
devices
 Mainframe
Computers
 • large‐scale
compu;ng
 • can
handle
concurrent
 transac;ons
 – atm
machines
 – credit
cards
 – business
transac;ons
 • ENIAC
(1942)
 • UNIVAC
(1952)
 4


8/29/08
 Supercomputers
 • large,
powerful
computers
that
perform
 specialized
tasks.
 – weather
forecas;ng

 – simula;ons
 Types
of
Computers
 Embedded
Computer
 Server
 • computers
in
larger
 • manage
resources
for
a
 products
 group
of
networked
 computers
 – AFS
 Computer
Hardware
 Components
 Objec;ve
3
 Describe
Hardware
Devices
and
their
Uses
 5


8/29/08
 CPU
 • Purpose
 • Moore’s
Law
 – CPU
capacity
doubles
 every
18
months
 • Measured
in
MHz
or
 GHz
 • Factors
that
affect
 processing
power?
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 RAM
 • Random
Access
 Memory
(RAM)
 • Short
Term
Memory
 • Cheap
&
Easy
Upgrade
 • Measured
in
MB
or
GB
 6


8/29/08
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 Computer
Memory
 Name
 Abbrevia6on
 Equivalence
 Rela6ve
Size
 Byte
 B
 1
byte
 one
character
of
 data
 Kilobyte
 KB
 1,024
bytes
 about
½
of
a
 typewrilen
page
 Megabyte
 MB
 1,024
KB
 about
760
typed
 pages

 Gigabyte
 GB
 1,024MB
 stack
of
typewrilen
 pages,
262
feet
high
 Terabyte
 TB
 1,024GB
 stack
of
typewrilen
 pages,
about
51
 miles
high
 Warning: Not Enough Memory to Save File!!! 7


8/29/08
 Hard
Drive
 • Internal
storage
device
 • Measured
in
gigabytes
(GB)
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 8


8/29/08
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 9


8/29/08
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 To
Upgrade?
Or
Not?
 Reference:
Technology
In
Ac;on,
Pren;ce
Hall
 10