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The UNIVAC 1101, or ERA 1101, was a computer system designed by Engineering Research Associates (ERA) and built by the Remington Rand corporation in the 1950s. It was the first stored program computer in the US. We usually define computer as a device or machine for processing information according to a program — a compiled list of instructions. ...
Engineering Research Associates, commonly known as ERA, was a pioneering computer firm from the 1950s. ...
Remington Rand was an early American computer manufacturer, best known as the original maker of the UNIVAC, and now part of Unisys. ...
1950 was a common year starting on Sunday (link will take you to calendar). ...
The so-called von Neumann architecture is a model for a computing machine that uses a single storage structure to hold both the set of instructions on how to perform the computation and the data required or generated by the computation. ...
Originally designed for the US Navy's Bureau of Ships (a cover for the NSA) and called Atlas (after a character[1] in the popular comic strip Barnaby), the commercial version was renamed the 1101 because it was designed under "Task 13" (1101 is 13 in binary). NSA can stand for: National Security Agency of the USA The British Librarys National Sound Archive This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
The comic strip Barnaby by Crockett Johnson (best known today for his childrens books, such as Harold and the Purple Crayon) featured an almost cherubic-looking five-year-old and his far-from-cherubic fairy godfather, Mr. ...
The binary numeral system represents numeric values using two symbols, typically 0 and 1. ...
This computer was 38 feet long (11.5 m), 20 feet wide (6 m), and used 2700 vacuum tubes for its logic circuits. Its drum memory was 8.5 inches in diameter (21.6 cm), rotated at 3500 rpm, had 200 read-write heads, and held 16,384 24-bit words (a memory size equivalent to 48 KB). In electronics, a vacuum tube (American English) or (thermionic) valve (British English) is a device generally used to amplify, or otherwise modify, a signal. ...
hi i am cool xbox is all most as cool as me hi again ...
A kilobyte (derived from the SI prefix kilo-) is a unit of information or computer storage equal to either 1024 or 1000 bytes. ...
Instructions were 24 bits long, with 6 bits for the opcode, 4 bits for the "skip" value (telling how many memory locations to skip to get to the next instruction in program sequence), and 14 bits for the memory address. Numbers were binary with negative values in one's complement. The addition time was 96 microseconds and the multiplication time was 352 microseconds. An instruction set, or instruction set architecture (ISA), describes the aspects of a computer architecture visible to a programmer, including the native datatypes, instructions, registers, addressing modes, memory architecture, interrupt and exception handling, and external I/O (if any). ...
Microprocessors perform operations using binary bits (on/off/1or0). ...
In mathematics, signed numbers in some arbitrary base is done in the usual way, by prefixing it with a - sign. ...
A microsecond is an SI unit of time equal to one millionth (10-6) of a second. ...
The single 48-bit accumulator was fundamentally subtractive, addition being carried out by subtracting the one's complement of the number to be added. This may appear rather strange, but the subtractive adder reduces the chance of getting negative zero in normal operations. In a CPU, an accumulator is a register in which intermediate results are stored. ...
History
Engineering Research Associates built two Atlas systems for the Navy's Bureau of Ships, installing them in December 1950 and March 1953. There was talk of naming the commercial version MABEL, but Jack Hill suggested 1101 instead. The ERA 1101 was publicly announced in December 1951. 1950 was a common year starting on Sunday (link will take you to calendar). ...
1953 is a common year starting on Thursday. ...
1951 was a common year starting on Monday; see its calendar. ...
Engineering Research Associates built a third machine for their own offices, with the intention of creating a service for other companies needing computing resources. However this failed and in November 1954 Remington Rand donated the machine to Georgia Tech for a claimed value of $500,000. In November 1958 Georgia Tech upgraded this machine with 4096 words of core memory for a cost of $39,400. This 1101 was still running student jobs in 1961. 1954 was a common year starting on Friday of the Gregorian calendar. ...
Georgia Institute of Technology The Georgia Institute of Technology, or Georgia Tech, is located in Atlanta, Georgia, U.S.A. With over 16,000 students, Georgia Tech is one of four public research universities in the University System of Georgia. ...
1958 was a common year starting on Wednesday of the Gregorian calendar. ...
A 16×16 cm area core memory plane of 128×128 bits, i. ...
1961 was a common year starting on Sunday (link will take you to calendar). ...
See also // The Remington Rand years (1950 to 1955) Calculating devices UNIVAC 60 UNIVAC 120 Computer systems UNIVAC I UNIVAC 1101 UNIVAC 1102 UNIVAC 1103 Peripherals Storage UNISERVO tape drive Display and print UNIVAC High speed printer 600 line/min printer Offline tape handling units UNIPRINTER 10 char/s printer with tape...
Computing hardware has been an essential component of the process of calculation and data storage since it became useful for numerical values to be processed and shared. ...
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