Hard Disk Drive Interface

Item

 

 

 

 

 

 

 

Drive Format

 

 

 

 

 

 

 

Disks

1

2

2

 

 

 

 

Spindle speed

4200 RPM

4200 RPM

4200 RPM

(RPM)

 

 

 

 

 

 

 

Performance Specifications

 

 

 

 

 

 

Buffer size

2048KB

8192KB

8192KB

 

 

 

 

Interface

ATA/ATAPI-6; ATA-6

ATA/ATAPI-6; ATA-6

ATA/ATA-6; ATA-6

 

 

 

 

Max. media

372

350

350

transfer rate

 

 

 

(disk-buffer,

 

 

 

Mbytes/s)

 

 

 

 

 

 

 

Data transfer

100 MB/Sec.

100 MB/Sec.

100 MB/Sec.

rate

Ultra DMA mode-5

Ultra DMA mode-5

Ultra DMA mode-5

(host~buffer,

 

 

 

Mbytes/s)

 

 

 

 

 

 

 

DC Power Requirements

 

 

 

 

 

 

Voltage

5V(DC) +/- 5%

5V(DC) +/- 5%

5V(DC) +/- 5%

tolerance

 

 

 

 

 

 

 

DVD-Dual Interface

Item

 

Specification

 

 

 

Vendor & model name

LITEON SOSW-833S

 

 

PIONEER DVR-K16RA

 

 

 

 

Performance Specification

With CD Diskette

With DVD Diskette

 

 

 

Transfer rate (KB/sec)

Sustained:

Sustained:

 

Max 3.6Mbytes/sec

Max 10.8Mbytes/sec

 

 

 

Buffer Memory

2MB

 

 

 

 

Interface

Enhanced IDE(ATAPI) compatible

 

 

 

 

Applicable disc format

Support disc formats

 

 

1.

Reads data in each CD-ROM, CD-ROM XA, CD-1, Video CD, CD-Extra and

 

CD-Text

 

 

2.

Reads data in Photo CD (single and Multi-session)

 

3.

Reads standard CD-DA

 

 

4.

Reads and writes CD-R discs

 

 

5.

Reads and writes CD-RW discs

 

 

6.

Reads and writes in each DVD+R/RW (Ver. 1.1)

 

7.

Reads data in each DVD-ROM and DVD-R (Ver. 2.0 for Authoring)

 

8.

Reads and writes in each DVD-R (Ver. 2.0 for general), DVD-RW and

 

DVD+R/RW (Ver1.1)

 

 

 

 

Loading mechanism

Load: Manual

 

 

Release: (a) Electrical Release (Release Button)

 

 

(b) Release by ATAPI command

 

 

(c) Emergency Release

 

 

 

 

 

Power Requirement

 

 

 

 

 

 

Input Voltage

5 V +/- 5 % (Operating)

 

 

 

 

 

Audio Interface

Item

Specification

 

 

Audio Controller

Realtek ALC268S

 

 

Audio onboard or optional

Onboard

 

 

34

Chapter 1

Page 40
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Acer 4220G, 4520G manual DVD-Dual Interface, Audio Interface

4220G, 4220, 4520G specifications

The Acer 4520G, 4220, and 4220G laptops are part of Acer’s previously popular Aspire series, known for delivering dependable performance and a range of features suitable for both casual users and professionals. Despite being older models, they still possess characteristics that can meet the demands of various computing needs.

First and foremost, these laptops are powered by AMD Turion 64 X2 processors, which provide a dual-core architecture, enabling them to handle multitasking effectively. This feature is particularly beneficial for users who engage in simultaneous applications, such as web browsing while streaming videos or editing documents. The efficient CPU performance ensures that the laptops maintain responsiveness during operation.

A notable advancement in the 4520G variant is the inclusion of a dedicated NVIDIA GeForce 8400M GS graphics card. This feature significantly enhances the graphical performance, making it suitable for light gaming and graphic-intensive applications. The integrated graphics in the 4220 and 4220G models, while adequate for everyday tasks, do not support demanding graphics as effectively.

Memory configurations for these models typically offer up to 4GB of RAM, which allows for smooth operation of everyday software and moderate gaming. Also, the inclusion of a 15.4-inch screen with a resolution of 1280x800 pixels provides a decent viewing experience suitable for both work and media consumption.

Storage options generally include a 120GB to 250GB hard drive, providing ample space for documents, applications, and media files. The laptops feature DVD-RW drives, enabling users to read and write CDs and DVDs, which is advantageous for data backup and media creation.

Connectivity options are also well-equipped, including several USB ports, HDMI output, and an Ethernet port for reliable internet connections. Wireless connectivity options, like Wi-Fi and Bluetooth, ensure that users can connect easily to networks and devices.

In terms of build, these laptops feature a sturdy design that, although bulkier than contemporary models, offers durability. The keyboard layout is comfortable for typing, and the touchpad provides decent responsiveness.

Overall, the Acer 4520G, 4220, and 4220G laptops present a blend of performance, reliability, and essential features. While they may not compete with the latest technology, they can still serve users who need a functional laptop for basic computing tasks.