history of computer

Question 1

is an electronic device that manipulates information or data. It can store, retrieve, and process data. It is a machine that can be programmed to carry out sequences of arithmetic or logical operations (computations) automatically.

Answer 1

Computer

Question 2

First computer that invented around 4,00 years ago. . It is a wooden rack which has metal rods with beads mounted on them.Still used in some countries like China, Russia and Japan.

Answer 2

Abacus

Question 3

Was invented in 1642 by Blaise Pascal, It is thought to be the first mechanical and automated
calculator. It is a wooden box with gears and wheels inside.

Answer 3

Pascaline

Question 4

A mechanical computer that could do basic computations like numerical tables such as logarithmic tables.

Answer 4

Difference Engine

Question 5

In 1673, Gottfried Wilhelm Leibniz improved on Pascal’s invention to create this apparatus. A digital mechanical calculator known as the stepped reckoner because it used flited drums instead of gears.

Answer 5

Stepped Reckoner or Leibniz Wheel

Question 6

A mechanical computer that took input form punch cards. Capable of solving any mathematical problem and storing data in an indefinite memory.

Answer 6

Analytical Engine

Question 7

Herman Hollerith invented this machine in the year 1890. it could compute statistics and record or sort data or information.

Answer 7

Tabulating Machine

Question 8

First electrical computer by Vannevar Bush in 1930. It could perform 25 calculations in a matter of minutes.

Answer 8

Differential Analyzer

Question 9

Howard Aiken planned to build a machine in 1937 that could conduct massive calculations. The Mark I computer was constructed in 1944 as a collaboration between IBM and Harvard.

Answer 9

Mark 1

Question 10

This was from the period of 1940 to 1955.

Answer 10

1st Generation

Question 11

The years 1957 to 1963 were referred to as the “second generation of computers”.

Answer 11

2nd Generation

Question 12

The hallmark of this period (1964-1971) was the development of the integrated circuit.

Answer 12

3rd Generation

Question 13

Invention of the microprocessors brought along the fourth generation of computers in the year 1971 to 1980.

Answer 13

4th Generation

Question 14

These computers have been utilized since 1980 and continue to be used now.

Answer 14

5th Generation

Question 15

The five basics operations that a computer performs are INPUT, STORAGE, PROCESSING, OUTPUT and CONTROL.

Answer 15

Fundamentals of Computer

Question 16

The data and instructions given to a computer to solve the problem is known as ?

Answer 16

Input

Question 17

Stores the data or information for processing.

Answer 17

Storage

Question 18

It is a set of steps performed to convert data into information.

Answer 18

Processing

Question 19

The processed data or the result information is an output.

Answer 19

Output

Question 20

it controls the flow of data and instructions from the storage unit to ALU.

Answer 20

Control

Question 21

Built with various components such as gears and levers, with no electrical components.

Answer 21

Analog Computers

Question 22

Information is represented in discrete form, typically as sequences of 0s and 1s (binary digits or bits). Digital computers are categorized into many different types. They are as follows:

Answer 22

Digital Computers

Question 23

The most powerful computers to date. They have enormous systems that are purpose built to solve complicated scientific and industrial problems

Answer 23

a. Super Computers

Question 24

A computer that is generally utilized by large enterprises for mission-critical activities such as massive data processing.

Answer 24

Mainframe Computers

Question 25

Relatively small and affordable, has many same features and capabilities as a larger computer but smaller in size.

Answer 25

Minicomputers

Question 26

Is a small computer that is based on a microprocessor integrated circuit, often know as chip. Also referred to as a personal computer (PC).

Answer 26

Microcomputers

Question 27

Are often simple in design and control electrical and mechanical processes with basic microprocessors.

Answer 27

Embedded Processors