The HP CalcPad series were calculators sold by Hewlett-Packard.
Introduced | 2009 |
---|---|
Interfaces | |
Ports | USB port + 2 USB port hub |
Other | |
Power supply | USB |
Weight | 90 g |
Dimensions | 136 × 88 × 18 mm |
The keypad layout of the HP CalcPad 100 (NW226AA) is similar to the standard PC 10-key numeric pad. The keypad includes basic mathematical functions: addition, subtraction, multiplication, and division. It is compatible with Microsoft Windows, Apple MacOS and other operating systems that support the USB protocol.
Has four hotkeys to access: Microsoft Excel, Word, clear desktop, HP CalcPad calculator.
The CalcPad 100 has two additional USB 2.0 ports and may be used as a hub for any USB-compatible PC peripherals.
Introduced | 2009 |
---|---|
Interfaces | |
Ports | USB port + 2 USB port hub |
Other | |
Power supply | Solar (SC1230) with battery (AG13) back-up |
Weight | 130 g |
Dimensions | 155 × 103 × 18 mm |
The keypad layout of the HP CalcPad 200 (NW227AA) is similar to the standard PC 10-key numeric pad. The keypad includes basic mathematical functions: addition, subtraction, multiplication, division, percent, constant and 00 key. It is compatible with Microsoft Windows, Apple MacOS and other operating systems that support the USB protocol.
Has four hotkeys to access: Microsoft Excel, Word, clear desktop, HP CalcPad calculator.
Unlike the CalcPad 100, the CalcPad 200 can work as a standalone basic business calculator, with a 12 digit LCD display, powered by a solar cell with battery back-up and automatic shut off.
The CalcPad 200 has two additional USB 2.0 ports and may be used as a hub for any USB-compatible PC peripherals.
The keyboard for IBM PC-compatible computers is standardized. However, during the more than 30 years of PC architecture being frequently updated, many keyboard layout variations have been developed.
A personal digital assistant (PDA) is a multi-purpose mobile device which functions as a personal information manager. Following a boom in the 1990's and 2000's, PDA's were mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android in the late 2000's, and thus saw a rapid decline.
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Microsoft has designed and sold a variety of ergonomic keyboards for computers. The oldest is the Microsoft Natural Keyboard, released in 1994, the company's first computer keyboard. The newest models are the Sculpt Ergonomic Keyboard (2013), the Surface Ergonomic Keyboard (2016), and the Microsoft Ergonomic Keyboard (2019).
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GEOS is a discontinued operating system from Berkeley Softworks. Originally designed for the Commodore 64 with its version being released in 1986, enhanced versions of GEOS later became available in 1987 for the Commodore 128 and in 1988 for the Apple II series of computers. A lesser-known version was also released for the Commodore Plus/4.
Apple Inc. has designed and developed many external keyboard models for use with families of Apple computers, such as the Apple II, Mac, and iPad. The Magic Keyboard and Magic Keyboard with Numeric Keypad designed to be used via either Bluetooth and USB connectivity, and have integrated rechargeable batteries; The Smart Keyboard and Magic Keyboard accessories for iPads are designed to be directly attached to and powered by a host iPad. All current Apple keyboards utilize low-profile key designs, and common modifier keys.
The Z22 was one of the first of Palm, Inc.'s handhelds to be released under the new "Palm" brand, and the first to be released without the "Zire" moniker. Released on October 12, 2005, it replaced the monochrome Zire 21, and was priced at $99 USD. The Palm Z22 came with Palm OS Garnet 5.4.9 preloaded and is not upgradable. It featured a 200 MHz Samsung S3C2410 ARM processor developed around the 32-bit ARM920T core that implements the ARMv4T architecture. The Z22 ran on a li-ion battery that had a life of about 8 hours depending on usage.
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The Apple–Intel architecture, or Mactel, is an unofficial name used for Macintosh personal computers developed and manufactured by Apple Inc. that use Intel x86 processors, rather than the PowerPC and Motorola 68000 ("68k") series processors used in their predecessors or the ARM-based Apple silicon SoCs used in their successors. As Apple changed the architecture of its products, they changed the firmware from the Open Firmware used on PowerPC-based Macs to the Intel-designed Extensible Firmware Interface (EFI). With the change in processor architecture to x86, Macs gained the ability to boot into x86-native operating systems, while Intel VT-x brought near-native virtualization with macOS as the host OS.
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The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals. After the development of the microprocessor, individual personal computers were low enough in cost that they eventually became affordable consumer goods. Early personal computers – generally called microcomputers – were sold often in electronic kit form and in limited numbers, and were of interest mostly to hobbyists and technicians.
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