UNIVAC 1107
Encyclopedia
The UNIVAC 1107 was the first member of Sperry Rand
's UNIVAC 1100 series
of computers, introduced in October 1962. It was also known as the Thin Film Computer because of its use of thin film memory
for its register storage. 36 systems were sold.
The core memory was available in 16,384 36-bit words in a single bank; or in increments of 16,384 words to a maximum of 65,536 words in two separately accessed banks. With a cycle time of 4 microseconds, the effective cycle time was 2 microseconds when instruction and data accesses overlapped in two banks.
The 128 word thin film memory general register stack (16 each arithmetic, index, and repeat with a few in common) had a 300 nanosecond access time with a complete cycle time of 600 nanoseconds. Six cycles of thin film memory per core memory cycle and fast adder circuitry permitted memory address indexing within the current instruction core memory cycle and also modification of the index value (the signed upper 18 bits were added to the lower 18 bits) in the specified index register (16 were available). The 16 I/O channels also used thin film memory locations for direct to memory I/O memory location registers. Programs could not be executed from unused thin film memory locations.
Both UNISERVO IIA and UNISERVO III tape drives were supported, both of which could use either metallic (UNIVAC I) or mylar tape.
The FH880 drum was also supported as a spooling and file storage media. Spinning at 1800 rpm it stored approximately 300,000 36 bit words.
Univac provided a batch operating system, EXEC I. Computer Sciences Corporation was contracted to provide a powerful optimizing Fortran IV compiler, an assembler named SLEUTH with sophisticated macro capabilities, and a very flexible linking loader.
UNIVAC
UNIVAC is the name of a business unit and division of the Remington Rand company formed by the 1950 purchase of the Eckert-Mauchly Computer Corporation, founded four years earlier by ENIAC inventors J. Presper Eckert and John Mauchly, and the associated line of computers which continues to this day...
's UNIVAC 1100 series
UNIVAC 1100/2200 series
The UNIVAC 1100/2200 series is a series of compatible 36-bit computer systems, beginning with the UNIVAC 1107 in 1962, initially made by Sperry Rand...
of computers, introduced in October 1962. It was also known as the Thin Film Computer because of its use of thin film memory
Thin film memory
Thin-film memory is a high-speed variation of core memory developed by Sperry Rand in a government-funded research project.Instead of threading individual ferrite cores on wires, thin-film memory consisted of 4 micrometre thick dots of permalloy, an iron-nickel alloy, deposited on small glass...
for its register storage. 36 systems were sold.
The core memory was available in 16,384 36-bit words in a single bank; or in increments of 16,384 words to a maximum of 65,536 words in two separately accessed banks. With a cycle time of 4 microseconds, the effective cycle time was 2 microseconds when instruction and data accesses overlapped in two banks.
The 128 word thin film memory general register stack (16 each arithmetic, index, and repeat with a few in common) had a 300 nanosecond access time with a complete cycle time of 600 nanoseconds. Six cycles of thin film memory per core memory cycle and fast adder circuitry permitted memory address indexing within the current instruction core memory cycle and also modification of the index value (the signed upper 18 bits were added to the lower 18 bits) in the specified index register (16 were available). The 16 I/O channels also used thin film memory locations for direct to memory I/O memory location registers. Programs could not be executed from unused thin film memory locations.
Both UNISERVO IIA and UNISERVO III tape drives were supported, both of which could use either metallic (UNIVAC I) or mylar tape.
The FH880 drum was also supported as a spooling and file storage media. Spinning at 1800 rpm it stored approximately 300,000 36 bit words.
Univac provided a batch operating system, EXEC I. Computer Sciences Corporation was contracted to provide a powerful optimizing Fortran IV compiler, an assembler named SLEUTH with sophisticated macro capabilities, and a very flexible linking loader.