Operating system individual assignment

Provide a brief understanding on the following terms related to the computer system

1. 
   Computer system
   

2. 
   Parts of a computer
   

3. 
   Types of computer
   

1. 
   Personal computers, this is a single user computer with moderate microprocessor
   
2. 
   Workstation computers, is also a single user computer with more powerful microprocessor.
   
3. 
   Mini computers, this is multi user computer that can handle hundreds of users
   
4. 
   Main frame, this is type of computer that can handle hundreds to thousands of users.
   
5. 
   Super computers,
   
1. 
   Computer memory and it’s types
   

1. 
   Random access memory, this is a primary storage of a computer that temporality stores instruction and it is volatile
   
2. 
   Row access memory, this is a non volatile computer memory that holds the boot up of the computer.
   
1. 
   Computer operations
   

Inputting data

1. 
   Processing data,
   
2. 
   Outputting data
   
3. 
   Storing data
   
4. 
   Controlling data
   

1. 
   An operating system- this is a software for the system that manages the hardware and software resources and creates the interface for the users
   
2. 
   Types of operating system
   
3. 
   The services provided by operating system are;
   

1. 
   Provided user interface,
   
2. 
   Executes program,
   
3. 
   Manipulating file system, the OS allows the user to create and delete files, search for file and writing details of it
   
4. 
   Allocation of the resource, when multiple jobs are being carried the operating system allocates for each. Resource can be CPU, main memory, file storage.
   
5. 
   Detection of errors, whatever error may occur the operating system detects it and takes action to solve it so as to ensure that the computer functions well.
   
6. 
   Provided security and protection,
   

4. 
   Operations for operating system are
   
   1. 
      Memory management, since it allocates memory for different processes and files.
      
   2. 
      Process management, example assigning processor for a process
      
   3. 
      Device management, operating system Manages output and input devices connected to the system
      
   4. 
      File management
      
5. 
   Operating system properties
   

1. 
   Multiprogramming, this is when more than one program are running at the same time sharing the processor and memory
   
2. 
   Spooling, operating system maintains the buffer that queues the tasks
   
3. 
   Distributed environment, this is when the operating system manages the communication between the processors.
   
4. 
   Multitasking, operating system manages execution and the running two or more tasks
   
5. 
   Interactivity, this means that the operating system allows the user interact with the system example providing an interface.
   
6. 
   Real time system,