intro and history of comp Flashcards
(36 cards)
he use of any computers, storage, networking, and other physical devices, infrastructure, and processes to create, process, store, secure, and exchange all forms of electronic data.he use of any computers, storage, networking, and other physical devices, infrastructure, and processes to create, process, store, secure, and exchange all forms of electronic data.
information technology
Advantages of Information Technology
protecting and storing info
automated process
communication
remote access of telecom
disadvantages of IT
expenses of implementation and maintenance
elimination of jobs
breaches in security
the technology required for information processing, in particular, the use of electronic computers, communication devices, and software applications to convert, store, protect, process, transmit and retrieve information from anywhere, anytime.
information and communication technology
refers to the knowledge obtained from reading, investigation, study, or research
information
an act of transmitting messages
communication
uses oc ict in daily lives
communication
job opportunities
education
socializing
impact of ict in society
access to info
new tools, new opp
communication
information management
distance learning
wider society
creation of new jobs
negative impacts of ict
job loss
reduced personal interaction
reduced physical activity
cost
competition
The first use of the word “computer” was recorded in
1613
what did computer mean back then?
person who carried out calculations
classification of devices during pre modern era
manual-mechanical, electromechanical, electronic
n ancient memory aid device to record and document numbers, quantities, or even messages.
tally sticks
devices that are operated manually by the user.
manual-mechanical devices
also called a counting frame and is considered the first man-made computing device. In fact, it was used for centuries. It uses beads and it was invented in China.
abacus
a manually-operated device used for calculating products, quotients, square and cube roots. It was invented by John Napier in 1614.
napier’s bones
a mechanical analog computer consisting of movable bars with a precise scale that uses approximations for solving problems like multiplication, division, roots, logarithms, and trigonometry. It was invented by William Oughtred.
oughtred’s slide rule
called Adding Machine. It is the first mechanical calculating device that uses cogged wheels that can be used to add and subtract two numbers. It was invented by Blaise Pascal in 1642.
pascaline calcu
Invented by Gottfried Wilhelm Leibniz in 1672. The machine can add, subtract, multiply, and divide automatically.
stepped reckoner
These engines embodied most of the design of modern computers. invented by Charles Babbage.
Babbage’s Difference and Analytical Engines
The _____ can compute tables and the —— is completely automatic and is capable of calculating any mathematical problems.
Difference engine
Analytical engine
A mechanical calculator invented by Thomas de Colmar in 1820, The first reliable, useful, and commercially successful calculating machine. The machine could perform the four basic mathematic functions. The first mass-produced calculating machine.
arithmometer
The principal components of these devices are circuit boards, transistors, or silicon chips, and use electrical switches and circuitry instead of mechanical relays.
electronic devices
The first special-purpose digital computer that solves simultaneous equations. It was developed by John Atanasoff.
ABC (Atanasoff-Berry-Computer)
