Knowledge Check 3
Image and text scanners use a technology called what?
OCR
What type of memory is primary storage?
RAM
What tag can transmit through radio waves
RFID
Many chips encased in one chip working is called?
RISC
A PSU converts alternating current to what?
Direct Current
What are the pathways inside a computer unit called?
buslines
What is a pen like device that can write on a screen?
stylus
What is the main body of a computer called?
system unit
What is the chassis commonly referred to as?
the box
How are buslines measured?
width
It is important to know how the inside of a computer works?
yes
How many bits in a byte?
eight
The programming on ROM chips is sometimes called what?
firmware
data and information that enters a computer is called what?
input
What does apple call a motherboard?
logic board
What is considered the brains of the computer
microprocessor
What is the main component of a system unit?
motherboard
Where does the microprocessor reside?
on the motherboard
What coding scheme do most microcomputers use?
ASCII
What determines a monitors resolution?
DPI
What type of memory is secondary storage
Hard drive
What is the only real language a computer understands?
Machine code
Physically what is the motherboard?
circuit board
A microprocessors speed is measured in what?
clock rate
data and information that leaves a computer is called what
output
