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