computers flashcards

Device in first generation computer

Vaccum, Valve tubes

Device in second generation computor

transistor

Device in a third-generation computer

integrated circuit

Device in a fourth-generation computer

microchips

binary numbers are composed of - and -

0 1

binary number is a

bit

8 bit word

byte

16 bits

2 bytes

64 bits

8 byte

ROM 

Read only memory 

Can rom alter information?

No

Can ram alter information?

yes

Connectors that link adapter cards, drives, etc

Ports

Main repository for programs and documents in a PC

Hard Drive

Provides specific instructions for calculations and step completed by the computer

Programs

Set of collected facts

Data

Set of instructions that form a function

Algorithm

Space from the center of a pixel to another

Pixel Pitch

Number of pixels in a matrix

Pixel Density

Another word for spatial resolution

Detail

changing values as continously variable physical quantities

Analog quantities

Discrete values that are specific or exact

Digital quantities

Avalible grayscale for image acquisition and display

Bit Depth

Formula to determine the avalible shades of gray

2^ bit depth

pixel density formula

rows x columns

pixel size formula

fov/matrix

To increase spatial resolution pixel size

decreases

To increase spatial resolution pixel pitch

Decreases

To increase spatial resolution pixel density

Increase

To increase spatial resolution matrix size

Increase