The
AN/UYK-8 was a
UNIVAC computer.
Development
In April 1967, UNIVAC received a contract from the U.S. Navy for design, development, testing and delivery of the AN/UYK-8 microelectronics computer for use with the
AN/TYA-20.
The AN/UYK-8 was built to replace the CP-808 (Marine Corps air cooled AN/USQ-20 variant) in the Beach Relay Link-11 communication system,
[ the AN/TYQ-3 in a AN/TYA-20]
Technical
It used the same 30- bit words and instruction set
In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer. A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an ' ...
as the AN/USQ-17 and AN/USQ-20
The AN/USQ-20, or CP-642 or Naval Tactical Data System (NTDS), was designed as a more reliable replacement for the Seymour Cray-designed AN/USQ-17 with the same instruction set. The first batch of 17 computers were delivered to the Navy sta ...
Naval Tactical Data System
Naval Tactical Data System (NTDS) was a computerized information processing system developed by the United States Navy in the 1950s and first deployed in the early 1960s for use in combat ships. It took reports from multiple sensors on different sh ...
(NTDS) computers, built with " first generation integrated circuits". This made it about one quarter of the volume of the AN/USQ-20.[
] It had two processor
Processor may refer to:
Computing Hardware
* Processor (computing)
**Central processing unit (CPU), the hardware within a computer that executes a program
*** Microprocessor, a central processing unit contained on a single integrated circuit (I ...
s instead of just one.[
Instructions were represented as 30-bit words, in the following format:
f 6 bits function code
j 3 bits jump condition designator
k 3 bits partial word designator
b 3 bits which seven index register to use (B0=non used)
s 2 bits which S (5bits) register to use S0,S1,S2,S3(P(17-13))
y 13 bits ]operand
In mathematics, an operand is the object of a mathematical operation, i.e., it is the object or quantity that is operated on.
Example
The following arithmetic expression shows an example of operators and operands:
:3 + 6 = 9
In the above examp ...
address in memory
memory address=Bb+Ss+y=18bit(262144Words)
Numbers were represented as full 30-bit words, this allowed for five 6-bit alphanumeric characters per word.
The main memory
Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers.
The central processing unit (CPU) of a computer ...
was increased to 262,144 words (256 K words) of magnetic core memory.
The available processor register
A processor register is a quickly accessible location available to a computer's processor. Registers usually consist of a small amount of fast storage, although some registers have specific hardware functions, and may be read-only or write-only. ...
s were:
*one 30-bit arithmetic
Arithmetic () is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers— addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th ...
(A) register.
*a contiguous 30-bit Q register (total of 60 bits for the result of multiplication or the dividend in division).
*seven 30-bit index
Index (or its plural form indices) may refer to:
Arts, entertainment, and media Fictional entities
* Index (''A Certain Magical Index''), a character in the light novel series ''A Certain Magical Index''
* The Index, an item on a Halo megastru ...
(B) registers.
See also
* List of UNIVAC products
*History of computing hardware
The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. Before the 20th century, most calculations were done by humans.
The first aids to computation were purely mechan ...
References
{{DEFAULTSORT:An Uyk-8
UNIVAC hardware
Military computers
Military electronics of the United States