The Memory is also a key part in the computer system. All the data is stored inn the memory. This data is separated and made into in to many small units called bytes. One of these hold one object which can be anything. The memory in the computer is measured in the following ways: Bytes. Sizes of these bytes can then expand in to
- Kilobytes- (KB) 1 KB =1,000 (1024) bytes
- Megabytes (MB) 1MB =1,000,000 (1 million) bytes
- Gigabytes (GB) 1 GB =1,000,000,000 (1 billion) bytes
- Terabytes (TB) 1TB = 1,000,000,000,000 (I trillion) bytes
RAM: Random Access Memory is the standard memory which is used to store programmes and data which is running at the time of use. At the end of a session when the computer is switched off it loses the all the data.
ROM: Read Only Memory is the second type of memory but does not get deleted when the computer system is turned off. It holds all the important data that is required for the computer to run, so if this is deleted the computer will not work or turn on.
Input device include keyboards, mice, scanners bar code readers and other device. These are used to send data into the computer.
Output devices include are printers, webcams, monitors and others devices. Output devices are used to send information and data out of the computer.
Storage is also an essential part of the computer system. You can get removable storage which includes CD’s, DVD’s, Floppy’s, USB’s and a few more. These enable the user to save data on to these devices and transfer them to other systems with out having to email or link the computers.
The Binary code is a very complex system but is used by the computer system very easily. It uses two symbols to show the data and these symbols can be anything like dots and dashes.