raw facts, in the form
of numbers, special
symbols or
combination of these
DATA
data that have been
collected & processed
into a meaningful
form
INFORMATION
_______ also called processor
COMPUTER
__________ are very good at
digesting data and producing
information.
COMPUTER
electronic device that can interpret and execute programmed commands for input, output, computation and logic operations.
COMPUTER/processor
COMPUTER also called ________
processor
CHARACTERISTICS of COMPUTER
- It is a machine
- It is electronic
- It can manipulate data
- It is automatic
- It has memory
- It has logical functions
CAPABILITIES of COMPUTER
- Self
directing/operating - Stores/recalls data
- Self-checking
- Perform logical
functions - speed
LIMITATIONS
- Works on designed
program or instruction
only - Cannot correct wrong
instructions or data - Application must be
quantified - Cannot completely avoid
making errors
a collective reference
to all interconnected computing hardware,
including processors, storage devices, input/output
devices and communication equipment
COMPUTER SYSTEM
CATEGORIES OF COMPUTERS
PC- PERSONAL COMPUTER
WORKSTATION
MAINFRAME COMPUTER
SUPERCOMPUTER
a small computer designed
for use by an individual
PERSONAL COMPUTER
a high-performance single
user computer system with
sophisticated input/output
devices that can be easily
networked with other
workstations or computers
WORKSTATION
a large computer that can
service many users
simultaneously in support of
enterprise-wide applications
MAINFRAME COMPUTER
the category that includes the
largest and most powerful
computers
SUPERCOMPUTER
many applications of computers,
including the following
✓Information systems
✓Personal Computing
✓Communication
✓Science, research & engineering
✓Education and reference
✓Entertainment & edutainment
The first counting mechanism
was the ______.
abacus
Some claim it originated with the
Chinese, but most scholars argue that it was invented
by the Babylonians.The concept was first implemented
with pebbles and sand or dust on a rock, hence its
origins in the Phoenician word abak or sand
ABACUS
1000 BC to 500 BC
What mechanical device did Leonardo da Vinci design in the 1500s AD?
Mechanical Calculator
What mathematical tools did John Napier create in the 1600s, and what were their primary functions?
multiplication tables on
wood or paper and
logarithms
What innovation did William Oughtred introduce in 1621, and how is it classified in terms of computing devices?
The slide rule, an early analog computer
What innovation did Joseph Marie Jacquard introduce in 1804?
punch cards to automate a weaving loom
What device did Blaise Pascal invent in 1642, and what was its primary function?
Arithmetic Machine
(used for addition, subtraction, multiplication, and division)
operating model of a mechanical digital calculator
Arithmetic Machine
