Page 11 - iPlus_Ver_2.0_class_6
P. 11

•   Laptop: It is a portable and small digital personal computer that is
                   suitable for use while travelling. We can use a laptop computer by
                   keeping  it on  our  lap.  A laptop  computer  has a  built-in mouse,

                   monitor and keyboard. It also has a rechargeable battery. After fully
                   charging  the battery,  we can use the laptop computer  without
                   power for 4 hours or more. Laptop computers are mostly used by
                   marketing executives who travel  frequently  or  are  far  from their              Laptop
                   offices.

                 •   Tablet: It is a portable digital computer that is smaller than a laptop
                   computer. It has a touchscreen as its primary input device instead of a
                   mouse. Similar to a laptop, the tablet computer also has a rechargeable
                   battery.  A tablet computer  generally  provides fewer  features  than  a
                   laptop computer. Tablet computers are commonly used by professionals
                                                                                                        Tablet
                   in various organisations.
                 Minicomputer

                 A minicomputer, also known as a "mini" is a type of computer that is
                 bigger, more expensive, and more powerful than a microcomputer.
                 They are bigger in size and faster in processing speed. It can contain
                 one  or  more  microprocessors  as  its  processing  units.  This  type  of
                 computer is mainly used for scientific and engineering computations.
                 A minicomputer has the  capability to  serve a number of users
                 simultaneously. It is also known as a small or midsized server computer.
                 They can support several users working at the same time on the same
                 machine which means they support a multi-user environment. Some                  Minicomputer
                 common examples of minicomputers are PDP-11, PDP-8, HP-3000, etc.

                    Info Byte

                     A server is also a computer that provides data and other services to other computers. It is
                     used in offices where many computers are connected to each other.


                 Mainframe Computers

                 A  mainframe  computer  is a  massive computer
                 that  occupies  a  huge  space  and  often  fills  an
                 entire room. It can store an enormous amount of
                 information and is designed for multitasking with
                 several users working simultaneously. Mainframe
                 computers usually have several terminals
                 connected  to  them.  They  are  manufactured  for
                 commercial applications and other  large-scale
                 computing purposes.
                                                                                      Mainframe Computers



                                                                                                                  9
                                                                Categories of Computers and Computer Languages
   6   7   8   9   10   11   12   13   14   15   16