HP-65 is a fully programmable pocket calculator. Use it withpre-recorded magnetic program cards from HP. Or, write your own programs andstore them on magnetic cards for future use, anytime. HP-65 Fully Programmable Pocket Calculator Hewlett-Packard’s most advanced pocket calculator is theHP-65. a fully programmable instrument which features a built-in magnetic cardreader/writer, a 100-step program memory, 51 pre-programmed functions andoperations and nine addressable data memory registers. These capabilities allowthe HP-65 to be used in three ways:

HP-22 Business Management Pocket The HP-22 business management pocket calculator puts anideal combination of financial, mathematical and statistical functions at yourfingertips. With it, you can handle everything from simple arithmetic tocomplex time-value-of-money computations. You can even handle planning,forecasting and decision analysis. And, you can approach business problems in avariety of ways to arrive at intelligent decisions and recommendations based onfacts. The HP-22 automatically calculates discounted cash flows;percentages: ratios: proportions: compound interest: remaining balance:annuities: depreciation; mean and standard deviation: rate of return:amortization and more.

9800 Series programmable calculators Hewlett-Packard’s line of programmable desk-top calculatorsprovides cost-effective solutions for a wide variety of business and scientificrequirements. You pick the computing power and memory you need and then tailorthe system to your application by choosing the appropriate peripherals. Interfaces are also available which allow 9800 Seriescalculators to accept data from a large number of digital voltmeters, counters,and other instruments. 9810A Whatever your discipline, from physicist to financier,engineer to biochemist, there is a Hewlett-Packard 9810 Programmable Calculatorthat is right for you.

Desk-top programmable calculators The Hewlett-Packard 9830 is a general purpose, programmablecalculator designed for a wide range of applications. The language of the 9830 is BASIC. This easy-to-use languagecouples simplicity with power and appeals to the new calculator owner as wellas the experienced programmer. The 9830 automatically inherits a comprehensiverange of proven software packages, including finance, mathematics, statistics,and education. A minimum 9830 provides 3520 8-bit bytes (1760 words) ofuser read/write memory. This can be expanded to 15,808 bytes (7904 words).

Calculator peripherals Calculator peripherals are the input/output devices that letyou tailor your programmable calculator to your specific computing requirement. - High speed tape reader subsystem The 9883A combines the HP 2748B Photo Reader and the HP 1I202A Option AO1 Interface Card. The 9883 optically reads tapes at 300 characters/second. Tape punch subsystem The 9884A combines the HP 2895B Tape Punch and the HP 11202AOption A02 Interface Card. The 9884 punches tape at 75 characters/second.

Calculator peripherals CRT subsystem The 9882A CRT Subsystem consists of a HP 2640A CRT Terminaland a 9830A Calculator Interface Card. Line printer The 9881A Line Printer Subsystem consists of the 2607A LinePrinter which is a reliable, low-cost, 5 X 7 dot-matrix printer. Its uniqueprint mechanism makes it quiet enough for any business environment and providesup to 6 consistent, clean copies. It prints at 200 lines/minute regardless ofthe line length and has full 132-column line width.

Programmable calculator and page-width printer 9815 The 9815 is Hewlett-Packard’s newest member in the 9800Series desk-top programmable calculators. It features a built-in high speeddata cartridge, a 16-character alphanumeric thermal printer, an auto-start switch,programming keys that double as special function keys, and two optional I/Ochannels. These capabilities allow the 9815 to be used in four basic ways: 1. Quick keystroke calculations - 28 built-in scientificfunctions along with the powerful Reverse Polish Notion Logic System used bythe HP pocket calculators, a buffered keyboard, large display, and readablepermanent printout, provide you with advanced problem solving at yourfingertips.

1975.12.15 A Hewlett-Packard Christmas Gift …chances are he will prefer a Hewlett-Packard. For your choice - multi-function professional quality problem solvers from Hewlett-Packard. HP-21 Scientific; HP-22 Business Management; HP-25 Scientific Programmable; HP-55 Advanced Scientific Programmable; HP-65 Fully Programmable; HP-80 Financial. A gift you _know_ he will appreciate. Published: The Straits Times, 15 December 1975, Page 23 The Straits Times, 19 December 1975, Page 15