4. Processors
• A CPU (central processing unit) is considered
the brain of the computer as it remembers
what happens internally.
• Sizes of CPUs; 8-bit, 16-bit, 32-bit, and 64-bit
• Speed of CPUs;
5. Technical Memory
ROM (read only memory)- computer
memory which once data has been
written onto, it cannot be removed and
only read.
RAM (random access memory)-
memory that can be accessed
randomly, it is the most common
type of memory found in most
devices.
Flash memory- a type of EEPROM that
can be easily erased and
reprogrammed. Modern PCs have their
BIOS stored on flash memory chips.
6. Technical Adapter Cards
•Expansion Cards- on a motherboard you can insert
expansion cards to give you added capabilities. For
example:
•Video Adapters- gives display capabilities, depending
on how powerful your adapter card is, you will receive
much more graphic power.
•Sound cards- enables output sounds through
speakers, and sound input from a microphone.
•Internal modems- enables you to insert Ethernet
cables into the computer.
7. Technical Storage Devices
• SATA (serial advanced technology
attachment)- SATA connection, connects hard
drive to the motherboard.
• PATA (Parallel advanced technology
attachment- the original hard drive
technology that uses a parallel data channel
from the motherboard to the disk drives.
