EXAM THEORY

Programming software A computer program consists of a group of instructions to instruct them to do the necessary work to

Application software Application programs that fulfill specific tasks for the user are called application software or applications. The functions of

Operating system types The first operating systems were obsolescent devices. Device dependent software products used to run only certain types

System software There are two types of system software operating systems and utility programs. This chapter discusses various utility programs

Storage device Storage Storage devices are known as complementary permanent secondary and more storage. It can hold data instructions and

Output device Output A lot of data is fed into the computer as it processes and organizes. Processed data in

Input device Input Any data or instruction that you put into the computer’s memory is called input. Users can enter

Inside the system unit System unit The system unit is also sometimes called a chassis (body). It looks like a

Central processing unit (CPU) CPU (CPU): – Central processing unit (CPU) is known as the brain of the computer that

Definition of computer In simple words, a computer can be defined as an electronic machine that can receive and store