PPT Slide

I/O Devices

Device

Purpose

Partner

Data rate (KB/sec)

Keyboard

Input

Human

.01

Mouse

Input

Human

.02

Voice input

Input

Human

.02

Scanner

Input

Human

200

Voice output

Output

Human

.06

Line printer

Output

Human

1

Laser printer

Output

Human

100

Graphics display

Output

Human

30,000

CPU to frame buffer

Output

Human

200

Network terminal

Input or output

Machine

.05

Network-LAN

Input or output

Machine

200

Optical disk

Storage

Machine

500

Magnetic tape

Storage

Machine

2,000

Magnetic disk

Storage

Machine

2,000

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