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There are at least four main models of the 1530/C2N Datassette: The original modified Sanyo M1540A cassette drive, built into the earliest models of PET in 1977. This was a standard shoebox tape recorder with a corner of the case removed and modified electronics; a Commodore PCB was installed internally in place of the Sanyo electronics.
Sanyo Micro-Pack 35 tape recorder showing cassette being inserted. The Sanyo Micro Pack 35 was a portable magnetic audio tape recording device, developed by Sanyo in 1964, that employed a special tape cartridge format with tape reels atop each other. [1] The unit was rebadged and sold as the Channel Master 6546 [2] and the Westinghouse H29R1. [3]
In this case, a five-second header and footer of the 2400 Hz signal was added to the file, and the program was sent as a single long series of ASCII bytes. The bytes were sent with a single mark start bit, eight bits of data containing a seven-bit ASCII code with the most significant bit set to 1, and a single mark stop bit. Users would record ...
A reel-to-reel tape recorder from Akai, c. 1978. An audio tape recorder, also known as a tape deck, tape player or tape machine or simply a tape recorder, is a sound recording and reproduction device that records and plays back sounds usually using magnetic tape for storage.
Large or L-size cassettes (125.1 x 78 x 14.6 mm) [26] are close in size to small MII cassettes and are accepted by most standalone DV tape recorders and are used in many shoulder-mount camcorders. The L-size cassette can be used in both Sony and Panasonic equipment; nevertheless, they are often called DVCAM tapes .
Early half-inch tape had seven parallel tracks of data along the length of the tape, allowing 6-bit characters plus 1 bit of parity written across the tape. This was known as 7-track tape . With the introduction of the IBM System/360 mainframe, 9-track tapes were introduced to support the new 8-bit characters that it used.
AMPEX quadruplex VR-1000A, the first commercially released video tape recorder in the late 1950s; quadruplex open-reel tape is 2 inches wide The first portable VTR, the suitcase-sized 1967 AMPEX quadruplex VR-3000 1976 Hitachi portable VTR, for Sony 1" type C; the source and take-up reels are stacked for compactness. However, only one reel is ...
The technical reference for the IBM PC 5150 specifies that the WRITE-BLOCK routine turns on the cassette drive motor and transforms each byte into bits.A (1) bit corresponds to a 1.0 ms timer period, (0) bit corresponds to 0.5 ms, which results in a recording speed of 1000 - 2000 bit/s.