How to track the lost phone

Each phone carries a unique

IMEI number i.e. International Mobile Equipment Identity Number which can be used to track it anywhere in the world.

This is how it works:

1.Dial *#06# from your mobile.

2. Your mobile phone shows a unique 15 numbers. Note down this number at a secure place except in your mobile phone itself as this is the number which will help trace your phone in case of theft.

4. Once stolen, just E-mail this 15 digit IMEI No. to with details as stated below:

Your Name:___________________


Phone model:_________________


Last used No.:_________________

E-mail for communication:_____

Missed date:___________________

IMEI No :_________________

5.Your Mobile will be traced within next 24 hours via a complex system of GPRS and internet, You will find where your hand set is being operated and the new user’s No. will be sent to your email.

6. After this, you can inform the Police with the details you got
For instance, we can use these as sample example:

Dial *#06# and you will get pop up screen out put that look like this:

Then save this results or write down in a secured places.

Once stolen, just E-mail this 15 digit IMEI No. to with details as stated below:

Your name e.g mr xyz.

Your address e.g Nairobi kenya,A2 ,lumumba drive opposite shell petrol station.

Your email address e.g

Phone model: samsung galaxy s10.

Phone make:A10 pro, made in vietnam.

Last used no:+2547*********

Missed date:26th , may, 2021.

IMEI No:12345678910112.

Then send these details to them.Yourobile phone will be traced and you will get your feedback within 7 working days. After getting those response from then report to the police with details you got.

Computer Organization

A computer system consists of mainly four basic units; namely input unit, storage unit, central processing unit and output unit. Central Processing unit further includes Arithmetic logic unit and control unit.

Fig. 1.2: Basic computer Organization


A computer performs five major operations or functions irrespective of its size and make.

These are:

  • it accepts data or instructions as input,
  • it stores data and instruction.
  • it processes data as per the instructions,
  • it controls all operations inside a computer, and
  • it gives results in the form of output.
Functional Units:

The functional units of a computer consists of:

  • Input Unit
  • Storage Unit
  • Processing Unit
  • Output Unit

Dotted lines (– – – –) indicate flow of instruction.

solid lines (–––––) indicate flow of data.

What is Computer ?

A computer is a programmable machine designed to perform arithmetic and logical operations automatically and sequentially on the input given by the user and gives the desired output after processing. Computer components are divided into two major categories namely hardware and software. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. Software are the set of programs that make use of hardware for performing various functions.


The characteristics of computers that have made them so powerful and universally useful are speed, accuracy, diligence, versatility and storage capacity. Let us discuss them briefly.

  • Speed

Computers work at an incredible speed. A powerful computer is capable of performing about 3-4 million simple instructions per second.

  • Accuracy

In addition to being fast, computers are also accurate. Errors that may occur can almost always be attributed to human error (inaccurate data, poorly designed system or faulty instructions/programs written by the programmer)

  • Diligence

Unlike human beings, computers are highly consistent. They do not suffer from human traits of boredom and tiredness resulting in lack of concentration. Computers, therefore, are better than human beings in performing voluminous and repetitive jobs.

  • Versatility

Computers are versatile machines and are capable of performing any task as long as it can be broken down into a series of logical steps. The presence of computers can be seen in almost every sphere – Railway/Air reservation, Banks, Hotels, Weather forecasting and many more.

  • Storage Capacity

Today’s computers can store large volumes of data. A piece of information once recorded (or stored) in the computer, can never be forgotten and can be retrieved almost instantaneously.