Chapter 4. Tape Drive Speci®cations

TR-4 1/4-inch tape cartridge technology offers fast, efficient, high capacity storage in a compact, easy-to-remove hard-shell package. This mass-storage technology evolved from the original reel-to-reel 1/2-inch tape storage medium. Storage capacities increased from 60 MB on 9 tracks (QIC-24, 1982) to the 4 GB capacity achievable with the tape cartridge.

This section includes the following speci®cations and requirements:

vPhysical speci®cations

vPower requirements

vDrive performance

vEnvironmental requirements

vTape cartridge speci®cations and capacities

vRegulatory compliance

Physical Speci®cations

The physical speci®cations1 are of both the EIDE and SCSI tape drives are listed in the following tables.

Physical Speci®cations

Type Drive

Internal Drive

External Drive

Height

25 mm (1.0 in.)

51 mm (2.0 in.)

 

 

 

Width

102 mm (4.0 in.)

155 mm (6.1 in.)

 

 

 

Length

163 mm (6.4 in.)

234 mm (9.2 in.)

 

 

 

Weight

0.5 kg (1.0 lb.)

1.4 kg (3.0 lb.)

Power Requirements

The following table lists the power speci®cations by voltage level for the tape drive. The power speci®cations are measured at the tape-drive power connector and are nominal values.

Power Speci®cations

Voltage

+12 V dc

+5 V dc

Voltage tolerance

+ or −10%

+ or −5%

 

 

 

Operational current

2.0 amps

1.0 amps

 

 

 

Standby current

0.2 amps

0.6 amps

 

 

 

Peak

2.2 amps max

Ð

 

 

 

Power Sequence

None

None

 

 

 

Ripple (peak to peak)

Ü100 mV

Ü100 mV

 

 

 

Power user (nominal)

< 15 watts (excluding surge)

< 15 watts (excluding surge)

1.Product-description data represents IBM's design objectives and is provided for comparative purposes; actual results might vary, based on a variety of factors. This product data does not constitute a warranty. Data is subject to change without notice.

© Copyright IBM Corp. 1998

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IBM 4690 manual Tape Drive Specications, Physical Specications, Power Requirements, Power Specications

4690 specifications

The IBM 4690 is a renowned point-of-sale (POS) system that has been pivotal in the retail and hospitality industries since its introduction in the late 1980s. Notably associated with IBM’s family of retail hardware and software solutions, the 4690 has transformed the modern retail environment, providing a robust platform for transaction processing and inventory management.

One of the main features of the IBM 4690 system is its powerful software architecture. Designed to efficiently handle high transaction volumes, it integrates seamlessly with various peripheral devices such as barcode scanners, receipt printers, and payment terminals. The system's user-friendly interface allows staff to process sales quickly and efficiently, enhancing the overall customer experience.

In terms of technology, the IBM 4690 operates on a proprietary operating system that supports a variety of programming languages, allowing retailers to customize applications to meet their specific needs. This flexibility not only streamlines operations but also enables retailers to implement specialized services such as loyalty programs and promotions. The hardware is designed for durability and reliability, essential in high-traffic retail environments.

Another significant characteristic of the IBM 4690 is its robust reporting capabilities. The system provides comprehensive sales reports, inventory analyses, and customer insights, all of which are essential for strategic decision-making. This analytical power helps businesses identify trends, forecast demand, and optimize stock levels, ultimately leading to improved profitability.

Furthermore, the IBM 4690 is known for its strong security features. By utilizing advanced encryption technologies and compliance with industry standards, the system helps protect sensitive customer data and payment information, ensuring a safe transaction environment.

The longevity and adaptability of the IBM 4690 system underscore its value in the retail sector. Even with newer technologies emerging, many businesses continue to rely on the robust functionality and proven performance of the 4690. With ongoing support and upgrades, the system remains a reliable choice for retailers looking to enhance their operational efficiency while delivering excellent customer service.

In summary, the IBM 4690 stands out due to its feature-rich software, durable hardware, robust reporting and analytics, and stringent security measures. These characteristics make it an indispensable tool for retailers aiming to thrive in an ever-evolving marketplace.