Life, Mood & Reality Ajiro Ndi

We all need to pay attention to this.

ICT Applications discussed in the following areas

- Communication

- Modelling

- Manufacturing

- School Management System

- Booking System

- Banking System

- Medicine

- Expert Systems

- Recognition System etc

The introduction of microprocessor-controlled devices into our everyday lives has had a profound effect in a number of ways. Some of these are positive and some are negative. This chapter will consider the effects of devices used in the home and elsewhere, and how they have changed how we live.

We will also consider the health risks posed by prolonged use of
computers at home and at work.

Most computer systems are now connected in some way to form a
network. This ranges from a basic home network of only a few devices to very large networks, often set up to share resources, such as printers or software. The largest network is the internet itself.

Crossroads everyone encounters in life

Secondary storage includes all non-volatile devices that are not part of primary memory. They allow data to be stored as long as required by the user. This type of storage is much larger than RAM and ROM (primary memory), but data access time is considerably longer. All applications, the operating system, device drivers and general files (for example, documents, photos and music) are stored in secondary storage. There are three different categories of secondary storage which are based on technology that uses the following media:
- magnetic
- optical
- solid state.
It is very important to distinguish between the terms storage media and storage device. Media is the hardware on which the data is actually stored (for example, a CD or a DVD); whereas the storage device is the hardware used to read from or write to the media (for example, a CD/DVD reader or writer).