Input/Output Methods
There are three basic methods by which data can be read (or input) from
or written (or output) to a peripheral device and RAM. These methods
are referred to as: programmed I/O, interrupt I/O, and direct memory
access.
In programmed I/O, the MPU...
Thursday, August 31, 2017
English For Today For Class Eleven. pdf
Lesson 1: Microcomputer and Organization
1.1 Learning Objectives
On completion of this lesson you will be able to:
• understand structure of a microcomputer
• understand communication techniques between processor and
other devices
• understand telecommunications...
HSC Biology Book.pdf
3.3 Computer Generations
Developments over the years have resulted in machines with greatly
increased speeds, storage or memory, and computing power. These
developments were so far-reaching and numerous that they are generally
categorized by generations. Each generation...
HSC Biology.pdf
Lesson 3: History and Generations of Computers
3.1 Learning Objectives
On completion of this lesson you will be able to :
• trace the history of computers
• follow the computer generations.
Click here to download the book
3.2 The Beginning
Different...
Physics First Paper by Jafor Iqbal.pdf
Mainframe Computers
Larger computers generally consist of modules mounted on a chassis or
mainframe and are known as mainframe computers. They vary in size,
from those slightly larger than a minicomputer to supercomputers (like
the Cray and Control Data Cyber computers).
Click...
SSC Physics Creative question with answer.pdf
Microcomputers
Microcomputers are microprocessor based small laptop or desktop
systems with varying capability depending on the input/output and
secondary storage devices supporting it. The brain of a microcomputer is
the microprocessor, a silicon chip containing the...
Professors BCS Bangla Book.pdf
2.4 Analog and Digital Computers
Two types of computers currently available. These are analog and digital
computers. Earlier discussion was only on digital computers. An analog
computer represents quantities by physical analogies. It represents
physical quantities,...
Wednesday, August 30, 2017
English For Today pdf
Lesson 2 : Types of Computers
2.1 Learning Objectives
On completion of this lesson you will be able to
• classify computers based on purposes
• classify computers based on types
• classify computers based on capacity.
Click here to download the book
2.2 Outline
The...
Physics Second Paper book.pdf
Humanware
Humanware refers to the persons who design, program, and operate a
computer installation. There are numerous categories of jobs, but the
three principal positions required in a large computer installation are
system analyst, programmer, and computer operator.
Click...
Chemistry Second Paper book. pdf
1.3 Components of a Computer System
A computer is used to process data and a data processing system must
consist of more than just machines. A computer system must contain:
hardware, software, humanware and operational procedures.
Click here to download...
Computer Sikun

Lesson 1: Introduction and Basic Organization
1.1 Learning Objectives
On completion of this lesson you will be able to
i) grasp the introductory concepts of a computer and its
working principle
ii) understand the basic elements of a computer system.
Click...
Sunday, August 27, 2017
MP3 Easy Computer.pdf (Free Download)
Lesson 5 : Installing Floppy Disk Drive
5.1. Learning Objectives
On completion of this lesson you will be able to describe:
How to install floppy disk drives.
Click here to download the book.
5.2. Introduction
Different types of floppy...
MP3 Daily Science. pdf
Lesson 1 : Types of Parallel Processing
1.1. Learning Objectives
On completion of this lesson you will be able to :
i) classify different types of parallel processing techniques.
Click here to download the book
Traditionally, the computer has been...
Saturday, August 26, 2017
MP3 Bangla. pdf (Free Download)
CPU Speed
There are many components inside the CPU. The CPU clock keeps the working of the components synchronized. By striking each clock a certain amount of work is done. Heart bit in our body is an example of clock tick in computer.
Click here to download the book.
The...
Thursday, August 24, 2017
MP3 International Affairs.Pdf
Lesson 1 : Microcomputer
1.1. Learning Objectives
On completion of this lesson you will be able to describe :
i) What is a microcomputer
ii) Different types of microcomputer.
Click here to download the book.
1.2. Microcomputer
A computer is an electronic machine...
Wednesday, August 23, 2017
Shortcut Math For Job

3.5. Internal Cache Memory
While working the CPU stores its program and data in the RAM. There are 2 main types of RAM – static and dynamic.
i) Static RAM or SRAM: Faster and 10-20 times more expensive than DRAM.
ii) Dynamic RAM or DRAM: Slower and 10-20 times less expensive...
Monday, August 21, 2017
SSC Bangla First Paper MCQ Question With Answer
SSC Bangla 1st Paper MCQ Question With Answer
1. SSC MCQ Question Ans. Bangla Palamou
2. SSC MCQ Question Ans. Bangla Dena Pawna
3. SSC MCQ Question Ans. Bangla Boi Pora
4. SSC MCQ Question Ans. Bangla Ovagir Shorgo
5. SSC MCQ Question Ans. Bangla Niriho Bangali
6. SSC MCQ Question Ans. Bangla Am Atir Vhapu
7. SSC MCQ...
Saifurs Spoken Vocabulary.
Lesson 5 : Memory
5.1. Learning Objectives
On completion of this lesson you will be able to describe :
i) Different memory hardware
ii) Different types of memory organization (i.e., SRAM, DRAM, SDRAM).
Click here to download the book.
5.2. Introduction
The...
Sunday, August 20, 2017
Spoken E-Book in Bengla Language. pdf

5.4. Static Versus Dynamic RAM
As computers are built faster and faster, all of the components must get faster and faster. Design a system around a 100 MHz chip, and you need a lot of 100 MHz components including RAM. Unfortunately, about the fastest type of common (that...
Saturday, August 19, 2017
Saifurs Zero teke Hero. (Spoken Book)
Lesson 6 : Bus Structure
6.1. Learning Objectives
On completion of this lesson you will be able to describe:
i) What is bus structure
ii) Different types of bus structure
iii) Components of different bus.
Click here to download the book.
6.2. Introduction
Different...
Doar Vandar.pdf (Free Download)
6.3.2. Memory Address
The 8088 processor in PC and XT has 20 address lines. To connect these 20 lines with expansion cards, the PC bus has 20 address lines.
Click here to download the book.
6.3.3. Electronic Overhead
Some bus wires just transport simple electric...
Friday, August 18, 2017
Civics and Citizenship Second Paper.
১ম অধ্যায়
বৃটিশ ভারতে প্রতিনিধিত্বশীল সরকারের বিকাশ
২য় অধ্যায়
পাকিস্থান থেকে বাংলাদেশ (১৯৪৭-১৯৭১)
৩য় অধ্যায়
রাজনৈতিক ব্যক্তিত্ব: বাংলাদেশের স্বাধীনতা লাভ
৪র্থ অধ্যায়
বাংলাদেশের সংবিধান
৫ম অধ্যায়
বাংলাদেশের সরকার ও প্রশাসনিক কাঠামো
...