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Smartphone
A smartphone is a type of mobile phone that provides the facilities of a
computer. It has a touchscreen and a rechargeable battery. A smartphone
provides the features of an earlier cell phone and also some advanced
features similar to a computer. The size of the smartphone is smaller than
that of a tablet computer. Therefore, a smartphone can easily be carried in
a pocket.
Smartphone
PDA
A Personal Digital Assistant (PDA) is a handheld computer that has a
touchscreen and allows us to organise our daily routine work like schedules,
calendars, and address book information. It also has a pen-like stylus that
allows users to input data. It can also accept handwritten input directly from
PDA the touchscreen.
Smartwatch
A smartwatch is a computing device that you can wear on your wrist. It
provides the features of an older watch and some advanced features of
a smartphone, like connecting to the internet, using mobile apps, making
phone calls, etc.
Gaming Console Smartwatch
A gaming console also called a video game console, is a computing
device specially designed to play video games. It can be connected
to a television to play games on the television. Some commonly
used examples of gaming consoles are Sony Playstation, Nintendo
Gaming Console
GameCube, and Nintendo Wii.
COMPUTER LANGUAGES
A computer cannot understand any instruction that we may give in English or in any other
language. To communicate with the computers, specialised languages are needed, which are
called computer languages or programming languages.
A computer language is the medium by which instructions are transmitted to the computer to
perform a specific task. It is a set of words, symbols and codes that the computer can understand.
It is used to write computer programs. A computer program is a set of instructions written in a
programming language.
The process of writing a program is called programming. People who write programs are called
programmers. There are a number of programming languages worldwide. Some languages
were developed for specific computers, others were developed for specific uses, such as scientific
or business applications.
Categories of Computers and Computer Languages 11

