A computer is an electronic device that receives input, processes data to create information, and provides useful output. It can perform arithmetic calculations automatically by following stored instructions. The document then traces the history of computing technologies from ancient abacus to modern computers, including pioneers like Charles Babbage and important early computers like the ENIAC. It also discusses the evolution of computers from room-sized machines to desktops, laptops, and various mobile technologies used today.

2. T E C H N O L O G I E S

3. A computer is a programmable machine that
receives input, stores and automatically
manipulates data, and provides output in a useful
format.
 Electronic device operating under the control of
instructions stored in its own memory

4. First, Accepts data such as raw facts, figures,
and symbol
 then, Processes data into information (Data
that is organized, meaningful, and useful )
 finally, Produces and stores results

6. ABACUS
NAPIER’S BONE
BLAISE PASCAL’S PASCALINE
BABBAGE DIFFERENCE ENGINE
COLOSSUS AND MARK I
ENIAC AND UNIVAC
APPLE MACINTOSH
IBM PC
1977
1946
1943
1791
1645
1617
1981
3000 BC

7. Abacus is an ancient instrument used
in performing arithmetic calculations.
It can do add, subtract, multiply and
divide. It consists of tablet or frame
bearing parallel wires or grooves in
which the counters or beads are
moved. For a skilled user of abacus he
could perform addition and subtraction
in the same speed with the person
using an electronic computer.
ABACUS

8. •English inventor
•(1791-1871)
•He invented a viable
mechanical computer
equivalent to modern digital
computers

9. 1981 - 1993
The IBM PC The Compaq
portable Computer
The Apple
Macintosh
MS-Windows 3.0 The Pentium
Chip

10. SUPERCOMPUTE
R
DESKTOP
COMPUTER

11. Handheld computers
WEARABLES TECHNOLOGIES

12. Handheld Computers
12

13. Group Activity:
List all the benefits of technologies
in our daily lives.