Question

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Assignment Explain the following stating the name of inventor, year of invention, features and use of invention ENIAC UNIVAC EDVAC EDSAC​

Answer 1

$\huge \bold { \red{ENIAC}}$

• ENIAC (Electronic Numerical Integrator and Computer) was the first programmable, electronic, general-purpose digital computer made in 1945.

INVENTOR

ENIAC was designed by John Mauchly and J. Presper

YEAR OF INVENTION

1945.

FEATURES

• It was the first general purpose of computer and use to calculate mathematical operations.
• It was the first general purpose of computer and use to calculate mathematical operations. It was designed to calculate the artillery firing tables.

USE OF INVENTION

• ENIAC was designed and primarily used to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory (which later became a part of the Army Research Laboratory)
• It had a speed on the order of one thousand times faster than that of electro-mechanical machines
• The combination of speed and programmability allowed for thousands more calculations for problems, as ENIAC calculated a trajectory in 30 seconds that took a human 20 hours

$\huge \bold { \red{UNIVAC}}$

• The UNIVAC I (Universal Automatic Computer I) was the first general-purpose electronic digital computer design for business application produced in the United States.

INVENTORS

• It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC

YEAR OF INVENTION

1951

FEATURES

• The UNIVAC I was designed as a commercial data-processing computer, intended to replace the punched-card accounting machines of the day.
• The UNIVAC I was designed as a commercial data-processing computer, intended to replace the punched-card accounting machines of the day. It could read 7,200 decimal digits per second (it did not use binary numbers), making it by far the fastest business machine yet built.

USE OF INVENTION

• The UNIVAC I was the first American computer designed at the outset for business and administrative use with fast execution of relatively simple arithmetic and data transport operations, as opposed to the complex numerical calculations required of scientific computers.
• As such, the UNIVAC competed directly against punch-card machines, though the UNIVAC originally could neither read nor punch cards.

$\huge \bold { \red{EDVAC}}$

• EDVAC (Electronic Discrete Variable Automatic Computer) was one of the earliest electronic computers.

INVENTORS

It was invented by John Mauchly and J. Presper Eckert

YEAR OF INVENTION

1944

FEATURES

• The EDVAC was a binary serial computer with automatic addition, subtraction, multiplication, programmed division and automatic checking with an ultrasonic serial memory capacity of 1,000 44-bit words (later 1,024 words, thus giving a memory, in modern terms, of 5.5 kilobytes).
• EDVAC's average addition time was 864 microseconds (about 1,160 operations per second) and its average multiplication time was 2,900 microseconds (about 340 operations per second).

USE OF INVENTION

• The EDVAC was a binary serial computer with automatic addition, subtraction, multiplication, programmed division and automatic checking with an ultrasonic serial memory capacity of 1,000 44-bit words (later 1,024 words, thus giving a memory, in modern terms, of 5.5 kilobytes).

$\huge \bold { \red{EDSAC}}$

• The Electronic delay storage automatic calculator (EDSAC)

INVENTORS

It was invented by Maurice Wilkes

YEAR OF INVENTION

1949

FEATURES

• EDSAC was modest in terms of modern-day computers.
• Instructions were executed at a rate of approximately 650 per second.
• Instructions were executed at a rate of approximately 650 per second. Input was by punched paper-tape and output by teleprinter.

USE OF INVENTION

• The EDSAC is a large-scale electronic calculating machine in which ultrasonic delay units are used for storage of orders and numbers.
• It is serial in operation and works in the scale of two. Punched tape is used for input and a teleprinter for output.