Input and Output Devices Ben Tyler. Overview Input and Output is abbreviated I/O Input device: a device that allows data to be put into the computer Output.

Input and Output DevicesBen Tyler

Overview

• Input and Output is abbreviated I/O• Input device: a device that allows data to be put into the

computer• Output device: displays/exports data for the user• Indirect input: a mouse pointer• Direct input: a touchpad

Examples of Input Devices

Examples of Input Devices

Examples of Output Devices

The ports

PS/2 Parallel Port

Serial port or RS232 or DB9

Firewire or IEEE 1394

NIC

USB

More ports

DVI

SATA Cable

VGA or DB15

More ports

HDMI

Firewire

• Two types 4 and 6 pin• Started by Apple in 1986• 400 mb/s transfer rate

USB

• Two types 1.1 and 2.0– 1.1 12 mb/s – 2.0 480 mb/s

PCMCIA

• Old technology

• Types: Slot I Slot II Slot III

Common Symbols

USBPower

Motherboard

AGPUsed for Video cards

PCI Slot

PCI Express (PCIe)

• For high end video• Slot varies in color

SLI

Common Memory Types

• SDRAM

• RDRAM

• DDR

• DDR2

• DDR3

SDRAMSynchronous dynamic random access memory

RDRAM (RIMM)Rambus in-line memory module

DDRDouble Data Rate

Just for Fun