computer basics Flipbook PDF

Careers in Computer Science

---

111 Views
84 Downloads
FLIP PDF 6.94MB

DOWNLOAD FLIP

REPORT DMCA

1

R E A L L Y G R E A T S I T E . C O M

BASICS OF COMPUTERS chapters;



Basics of Computers -

Introduction Basics of Computers Classifications Basics of Computers S/W Basics of Computers – System S/W Functions of Operating System Types of Operating System Secondary Memory Primary Memory



BASICS OF

COMPUTERS INTRODUCTION

THE LITERAL MEANING OF COMPUTER IS A DEVICE THAT

CAN

CALCULATE.

COMPUTERS

CAN

DO



HOWEVER, A

LOT

MODERN

MORE

THAN

CALCULATE. COMPUTER IS AN ELECTRONIC DEVICE

THAT RECEIVES INPUT, STORES OR PROCESSES THE

INPUT AS PER USER INSTRUCTIONS AND PROVIDES OUTPUT IN DESIRED FORMAT.

INPUT-PROCESS-OUTPUT MODEL;

DATA

INPUT IS CALLED COMPUTER AND

THE

PROCESSING

OUTPUT IT,

OBTAINED

BASED

ON

AFTER USER’S

INSTRUCTIONS IS CALLED INFORMATION. RAW FACTS

AND

PROCESSED LOGICAL

FIGURES USING

WHICH

CAN

ARITHMETIC

OPERATIONS

TO

INFORMATION ARE CALLED DATA.

BE AND

OBTAIN

THE PROCESSES THAT CAN BE APPLIED TO DATA ARE OF TWO TYPES −

ARITHMETIC OPERATIONS − EXAMPLES INCLUDE CALCULATIONS LIKE ADDITION, SUBTRACTION, DIFFERENTIALS, SQUARE ROOT, ETC.

LOGICAL OPERATIONS −

COMPARISON

EXAMPLES INCLUDE OPERATIONS

LIKE

GREATER THAN, LESS THAN, EQUAL TO, OPPOSITE, ETC.