
IT Certification Practice Exams

A+ Essentials Tutorial

2.0 Laptop and Portable Devices

2.1 Identify the fundamental principles of using laptops and portable devices

Identify names, purposes and characteristics of laptop-specific:
- Ports (e.g. mini PCI slot)

Mini PCI is a standard for a computer bus for attaching peripheral devices to a computer system bus, similar to Peripheral Component Interconnect (PCI) bus in a desktop computer. It was specifically designed for laptops and other portable devices. Specific details of connector type and respective sizes are as given below:

Type Connector Size

IA 100-Pin Stacking 7.5 × 70 × 45 mm

IB 100-Pin Stacking 5.5 × 70 × 45 mm

IIA 100-Pin Stacking 7.5 × 70 × 45 mm

IIB 100-Pin Stacking 17.44 × 78 × 45 mm

IIIA 124-Pin Card Edge 2.4 × 59.6 × 50.95 mm

IIIB 124-Pin Card Edge 2.4 × 59.6 × 44.6 mm

Type	Connector	Size
IA	100-Pin Stacking	7.5 × 70 × 45 mm
IB	100-Pin Stacking	5.5 × 70 × 45 mm
IIA	100-Pin Stacking	7.5 × 70 × 45 mm
IIB	100-Pin Stacking	17.44 × 78 × 45 mm
IIIA	124-Pin Card Edge	2.4 × 59.6 × 50.95 mm
IIIB	124-Pin Card Edge	2.4 × 59.6 × 44.6 mm

The standard size for Mini PCI cards is approximately 1/4 of their full-sized counterparts. Unlike PCI cards, Mini PCI cards are generally limited in the functions they may perform. Mini PCI cards have a 2W maximum power consumption, which also limits the functionality that can be implemented in this form factor.

Available mini PCI devices include WiFi, modems, sound cards, SCSI, IDE/ATA and SATA controllers. You can use regular PCI cards with your Mini PCI-equipped hardware and vice-versa, using Mini PCI-to-PCI and PCI-to-Mini PCI adapters.

Download practice tests: A+ Essentials 220-601, A+ IT Technician 220-602, A+ Remote Support Technician 220-603, A+ Depot Technician 220-604