4. Hardware/Software
Hardware refers to objects that you can
actually touch, like disks, disk drives,
display screens, keyboards, printers,
boards, and chips.
Software are instructions or data. Anything
that can be stored electronically is software.
Applications are software.
6. Input Devices
Input devices are hardware or that
include keyboards, mice, touch displays,
and microphones.
Are also called
peripheral devices.
7. Output Devices
Output devices are hardware that
provides information to the user such as
monitors, speakers, and printers.
Also are considered
peripheral devices.
8. Processing
(The Brains of the Computer)
CPU or Central Processing Unit is
responsible for controlling the computer
commands and operations.
Intel is the most popular
manufacturer of CPU's.
9. Processing
(Short-term Memory)
RAM (Random Access Memory) is an
electronic chip that provides temporary
storage. RAM helps speed up repeated
operations and provides more working
memory for software to run.
RAM may be in 4GB, 8GB
or 16GB amounts in
today's computers.
10. Storage
Internal Storage
Hard Disk Drives are internal storage
devices which are composed of metal
platters where information is
read/written magnetically.
The Hard Drive will store data files as
well as the Operating System and
application and system software.
11. Storage
External Solid State Media/Flash Storage
Solid State Media stores data
using electricity and retains
the data when the power
is turned off.
USB Flash, Thumb
or Jump drives are examples of
solid state media drives – they
have no moving parts.
12. Cloud Storage
Web-based Storage
Files are stored on a Web-server
and can be accessed anywhere
with an Internet connection.
Examples Include:
Google Drive, DropBox,
SkyDrive, Amazon
13. Optical Storage
CD, DVD, Blu-Ray
CDs store @700 MB of data
DVDs store @4-9 GB+
HD-DVD store 15GB+
Blu-Ray store 25GB+
S Note: Blu-Ray & DVD can have single or
double layered capacity.
14. Bits & Bytes
Digital Data - smaller
Bit (Binary Digit) = 1 or 0
8 Bits = 1 Byte (1 character)
1000 Bytes = Kilobyte KB
1 Million Bytes
or 1000 KB = 1 Megabyte MB
15. Bits & Bytes
Digital Data - larger
1 Billion Bytes
or 1000 MB = 1 Gigabyte GB
1 Trillion Bytes
or 1000 GB = 1 Terabyte TB
1000 TB – 1 Petabyte PB
16. So….
If you have 10 megabit per second
(mbps) download speed
You can download (at most)
1.25 MB per second
MegaBITS are 1/8 a MegaBYTE
Bits are not Bytes