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Winaero is a website hosting freeware tweaking tools for Microsoft Windows. It is made by a Russian software developer, Sergey Tkachenko. It is made by a Russian software developer, Sergey Tkachenko. The website offers freeware tools for modifying the behavior of Microsoft Windows.
Perhaps the HP-30 series, Spice, was to be released as a replacement for the aging HP-20 series. [2] [3] It has no expandability. The display provided better readability by increasing the digit size and adding commas. The entry-level was the HP-31E and 32E, that were not programmable; but even the 31E provided a Self-check. [4]
A Palmtop PC is an obsolete, approximately pocket calculator-sized, battery-powered computer in a horizontal clamshell design with integrated keyboard and display. It could be used like a modern subnotebook , but was light enough to be comfortably used handheld as well.
The palmtop runs MS-DOS 3.22 [3] and has a customized version of Lotus 1-2-3 Release 2.2 built in. [6]: 72 [11] Other software in read-only memory (ROM) includes a calculator, an appointment calendar, a telecommunications program, and a simple text editor.
HP 30b with overlay for WP 34S. As with the HP 20b, the HP 30b's firmware can be overwritten ("flashed") using a computer and a special cable. Taking advantage of this facility, a team of HP calculator enthusiasts has produced a firmware for converting the 30b into a programmable scientific calculator. [4]
HP 9815A. Chronologically, the models of the family were: HP 9810A, a keystroke programmable computer with magnetic cards and LED display, introduced in 1971, [1]; HP 9820A, introduced in 1972, was the first HP model that deals with algebraic input (not only RPN) [2] featured a high level language simpler than BASIC that was later named high performance language (HPL),
The HP-16C is a computer programmer's calculator, designed to assist in debugging. It can display numbers in hexadecimal , decimal, octal and binary , and convert numbers from one base to another. A number of specialized functions are provided to assist the programmer, including left- and right-shifting, masking, and bitwise logical operations.
HP-19B, introduced on 4 January 1988, along with the HP-17B, HP-27S and the HP-28S, and replaced by the HP-19BII (F1639A) in January 1990, [2] was a simplified Hewlett Packard business model calculator, like the 17B. It had a clamshell design, like the HP-18C, HP-28C and 28S. [3]