Time lines:
Mainframes are large computer that are very powerful and able to carry out many tasks.
The main uses are, utility companies, banks, insurance companies, airline and police.
An advantage of a mainframe is that is can execute millions of instructions per second however a disadvantage is that they can only be operated by trained staff.
The main uses are, utility companies, banks, insurance companies, airline and police.
An advantage of a mainframe is that is can execute millions of instructions per second however a disadvantage is that they can only be operated by trained staff.
Personal computers are powerful PCs used at home and work.
Some of the uses are, running office applications such as microsoft word, for CAD, editing videos and the internet for reasearch.
An advantage of a personal computer is that they can store large amounts of data but a disadvantage is they are not easily carried so they tend to stay in one place.
Some of the uses are, running office applications such as microsoft word, for CAD, editing videos and the internet for reasearch.
An advantage of a personal computer is that they can store large amounts of data but a disadvantage is they are not easily carried so they tend to stay in one place.
A laptop is a portable computer which is mobile.
Some of the main uses of a laptop is editing videos and internet research.
An advantage is that they are portable and most have a powerful battery.
A disadvantage is that the keyboard is often harder to use as it is smaller than usual.
Some of the main uses of a laptop is editing videos and internet research.
An advantage is that they are portable and most have a powerful battery.
A disadvantage is that the keyboard is often harder to use as it is smaller than usual.
Smartphones:
A phone with multifunctional purposes.
Some main uses are Downloading apps and contacting other people.
An advantage is they contain a GPS chip so can pick up your exact location.
A disadvantage is they get hot very fast.
A phone with multifunctional purposes.
Some main uses are Downloading apps and contacting other people.
An advantage is they contain a GPS chip so can pick up your exact location.
A disadvantage is they get hot very fast.
Netbooks:
They are a smaller and lighter laptop.
Some of the main uses are small enough to carry in the hand and good for students.
An advantage is they are ultra lightweight.
A disadvantage is they have a much smaller memory than a laptop.
They are a smaller and lighter laptop.
Some of the main uses are small enough to carry in the hand and good for students.
An advantage is they are ultra lightweight.
A disadvantage is they have a much smaller memory than a laptop.
Personal Digital Assistance (PDA)
PDA's are personal handheld computers.
Some of the main uses are to keep track of meetings and send and receive emails.
Some advantages are that they are easy to use whilst standing.
A disadvantage is that they are small and often lost.
PDA's are personal handheld computers.
Some of the main uses are to keep track of meetings and send and receive emails.
Some advantages are that they are easy to use whilst standing.
A disadvantage is that they are small and often lost.