 Sharp PC-1251 | |
| Manufacturer | Sharp Corporation |
|---|---|
| Generation | First |
| Release date | 1982 |
| Memory | 4 Kbit RAM modules |
| Display | 24 digit dot matrix LCD |
| Input | Full QWERTY-style keyboard |
| Power | 2 built-in batteries |
| Successor | Sharp PC-5000 |
| Related | Sharp PC-1211 Sharp PC-1500 |
The Sharp PC-1251 was a small pocket computer that was also marketed as the Tandy Pocket Computer .
It was created by Sharp Corporation in 1982. [1]
Pocket Viewer was a model range of personal digital assistants (PDAs) developed by Casio around the turn of the 21st Century.
The Sharp PC-1350 is a small pocket computer manufactured by Sharp. The PC-1350 was introduced in 1984 and was used by engineers, and favored by programmers for its programming and graphical capabilities. It was superseded in 1987 by the PC-1360, which featured one additional RAM expansion port, improved BASIC, floppy disk capability, and a faster CPU.
The Sharp PC-1403 was a small scientific calculator and pocket computer manufactured by Sharp. It was the successor of the Sharp PC-1401, and had better display, more RAM and better system software.
The Sharp PC-1500 was a pocket computer produced by Sharp between 1981 and 1985. A rebadged version was also sold as the TRS-80 Pocket Computer PC-2.
The Sharp PC-1401 is a small pocket computer manufactured by Sharp. It was introduced in 1983 and is one of the first combinations of scientific calculator and portable computer with BASIC interpreter/bytecode compiler. The PC-1402 has the same features but includes 10K of RAM.
The Sharp PC-1211 is a pocket computer marketed by Sharp Corporation in the 1980s. The computer was powered by two 4-bit CPUs laid out in power-saving CMOS circuitry. One acted as the main CPU, the other dealt with the input/output and display interface. Users could write computer programs in BASIC.
The Tandy Pocket Computer or TRS-80 Pocket Computer is one of a line of 1980s small pocket computers—calculator-sized programmable computing devices—sold by Tandy Corporation under the "Tandy" or "RadioShack TRS-80" brands.
The Atari Portfolio is an IBM PC-compatible palmtop PC, released by Atari Corporation in June 1989. This makes it the world's first palmtop computer.
A pocket computer was a 1980s-era user programmable calculator-sized computer that had fewer screen lines, and often fewer characters per line, than the Pocket-sized computers introduced beginning in 1989. Manufacturers included Casio, Hewlett-Packard, Sharp, Tandy/Radio Shack and many more. The last Sharp pocket computer, the PC-G850V (2001) is programmable in C, BASIC, and Assembler. An important feature of pocket computers was that all programming languages were available for the device itself, not downloaded from a cross-compiler on a larger computer.
A handheld personal computer (PC), typically built around either a clamshell form factor or a gaming form factor with a gamepad integrated for video games, is a mobile device that is significantly smaller than any standard personal computer (PC), but based on the same principles as PCs. The clamshell form factor is sometimes referred to as a palmtop computer, not to be confused with Palmtop PC which was a name used mainly by Hewlett-Packard.
The Sharp PC-E500S was a 1995 pocket computer by Sharp Corporation and was the successor to the 1989 PC-E500 model, featuring a 2.304 MHz CMOS CPU.
The Sharp PC-1600 was a pocket computer introduced by Sharp in 1986 as a successor to the PC-1500. The PC-1600 provided compatibility with its predecessor through the use of a slave CPU that could run assembly language programs targeting the older machine. It could also switch into a compatibility mode so that programs written for the single line display of the PC-1500 could work with the four line display of the PC-1600.
The Sharp PC-E220 was a 1991 pocket computer from Sharp Corporation featuring 32 KB RAM, 128 KB ROM and a 3.072 MHz CMOS-SC7852 CPU which was Z80A compatible. The display was able to display 4 lines x 24 characters/144 x 32 pixels. Programming languages were BASIC and Z80-Assembler.
The Matsushita JR series was a line of microcomputers produced by Matsushita Electric Industrial during the 1980s. Based on the success of the Sharp MZ and NEC PC-8000 series, it was an attempt by Matsushita to enter the personal computer market.
The floppy disk is a data storage and transfer medium that was ubiquitous from the mid-1970s well into the 2000s. Besides the 3½-inch and 5¼-inch formats used in IBM PC compatible systems, or the 8-inch format that preceded them, many proprietary floppy disk formats were developed, either using a different disk design or special layout and encoding methods for the data held on the disk.
TRS-80 is the name of Tandy Corporation's original 1977 microcomputer system. The TRS-80 brand was also later applied to many different computers sold by Tandy, including several unrelated in design to the Model I.
Disk Extended Color Basic is an update to the Color BASIC interpreter for the Radio Shack/Tandy TRS-80 Color Computer series and is the default BASIC interpreter, and therefore the de facto operating system, for the Color Computer 3. The Color Computer Basic implementations are somewhat different for the versions of Basic which come with the other family of TRS-80 machines, namely Basic Levels I, II, and III. Assemblers and Pascal and C compilers are available for the different machines in the series. Modified subsets of Color Basic may be found on many of the Radio Shack PC series of pocket computers of the era.
The Sharp pocket computer character sets are a number of 8-bit character sets used by various Sharp pocket computers and calculators in the 1980s and mid 1990s.
The Sharp PC-7000 is a luggable portable computer released by Sharp Electronics in 1985. The PC-7000 was Sharp's second entry into the IBM PC-compatible portable computer market, their first being the PC-5000.
The Sharp PC-4500 is a line of laptop computers released by Sharp Corporation in 1987. The line comprises the PC-4501, the PC-4502, and the PC-4521. The PC-4501 is a bare-bones unit with only 256 KB of RAM stock, only one floppy drive, no backlighting, and no built-in numeric keypad; the PC-4502 and PC-4521 bumps the stock RAM to 640 KB and includes the latter two features while providing either two floppy drive (PC-4502) or one floppy drive and a 20 MB hard drive (PC-4521). Prices on the line initially ranged from $1,295 to just under $3,000; the PC-4501 was later sold for $995, becoming one of the first sub-$1,000 laptops available on the market. The PC-4500 line received mixed, mostly positive, reviews on its release in September 1987.
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