The basic activities to be performed on your file
are arranging, sorting, merging, calculating, and edition, manipulating and
deleting a record. This is removing a record you do not want.
are arranging, sorting, merging, calculating, and edition, manipulating and
deleting a record. This is removing a record you do not want.
Mode
of Operation or (Processing)
of Operation or (Processing)
Ways of processing jobs which include batch
processing, on-line processing, real time, multi-user, multi tasking, time
sharing.
processing, on-line processing, real time, multi-user, multi tasking, time
sharing.
i.
Batch Processing: Group processing is a way in which job are been accumulated over a
period of time either in group of 10, 15, 20 or more before feeding the system
with the data of process. This job will be submitted to the computer operation
over a time one after the other.
Batch Processing: Group processing is a way in which job are been accumulated over a
period of time either in group of 10, 15, 20 or more before feeding the system
with the data of process. This job will be submitted to the computer operation
over a time one after the other.
Disadvantages
a.
Time
wasted
Time
wasted
b.
Users are
not allowed to use it themselves. if there is error (bug) in the program, the
job may be aborted and will have to be resubmitted after correction
Users are
not allowed to use it themselves. if there is error (bug) in the program, the
job may be aborted and will have to be resubmitted after correction
ii.
On-line Processing: The term on-line pertains to equipment or devices
that are indirect communication with the CPU. On-line processing system may
therefore be defined as a computer base system capable of processing
information through peripheral devices under the control of the CPU. Also it is
a system that requires immediate processing
On-line Processing: The term on-line pertains to equipment or devices
that are indirect communication with the CPU. On-line processing system may
therefore be defined as a computer base system capable of processing
information through peripheral devices under the control of the CPU. Also it is
a system that requires immediate processing
iii.
Multi User: This is a system that allows more the one user to work on the computer
system through the help of terminal at any particular time. In other word, it
allows a number of users consisting of various people in different department
to process their own particular requirement each of the user is connected to
the computer by a terminal which is under the control of the CPU
Multi User: This is a system that allows more the one user to work on the computer
system through the help of terminal at any particular time. In other word, it
allows a number of users consisting of various people in different department
to process their own particular requirement each of the user is connected to
the computer by a terminal which is under the control of the CPU
iv.
Time Sharing: This is an operating system that enables many users to share computer
resources at the same time. Each user is only using a tiny slice of time of the
CPU but many user can be connected to the CPU simultaneously
Time Sharing: This is an operating system that enables many users to share computer
resources at the same time. Each user is only using a tiny slice of time of the
CPU but many user can be connected to the CPU simultaneously
v.
Multi Programming: Is an operating system that permits two or more
programmes to run at the same time
Multi Programming: Is an operating system that permits two or more
programmes to run at the same time
vi.
Multi Tasking: This is a form of multi programming for single user operation system
with multi tasking. One person can run two or more programs concurrently on a
single computer
Multi Tasking: This is a form of multi programming for single user operation system
with multi tasking. One person can run two or more programs concurrently on a
single computer
vii.
Multi processing: This entails the use of several independent computers within the same
computing environment i.e. it processes two or more job by using two or more
CPU
Multi processing: This entails the use of several independent computers within the same
computing environment i.e. it processes two or more job by using two or more
CPU
viii.
Single user: This is an operating system for personal computer or microcomputer.
This is an operating system that allows just one person to work on a computer
at a time; it can run just one program at a time
Single user: This is an operating system for personal computer or microcomputer.
This is an operating system that allows just one person to work on a computer
at a time; it can run just one program at a time
Understand the following terms:
1.
Assembler: This is a computer program that translates a program written in an
assembly language or low level language into the machine language
Assembler: This is a computer program that translates a program written in an
assembly language or low level language into the machine language
2.
Translators: There are programs that translate the instructions or programs write in
any of the computer of programming languages into the one that computer
understand i.e. machine language. A computer program consists of sets of
instructions. They are written in programming language such as BASIC, COBOL,
PASCAL, FORTRANS etc.
Translators: There are programs that translate the instructions or programs write in
any of the computer of programming languages into the one that computer
understand i.e. machine language. A computer program consists of sets of
instructions. They are written in programming language such as BASIC, COBOL,
PASCAL, FORTRANS etc.
3.
Compiler: It is a program that translates a program written in any of the high level
programming language into a machine language
Compiler: It is a program that translates a program written in any of the high level
programming language into a machine language
4.
Interpreter: This is a computer program that translates and executes each program
instruction before translating and executing the next one.
Interpreter: This is a computer program that translates and executes each program
instruction before translating and executing the next one.
A compiler checks for the errors in a program and
list the error at the end of the compilation
While interpreter on the other hand checks for the errors in a program
line after line or line by line.
list the error at the end of the compilation
While interpreter on the other hand checks for the errors in a program
line after line or line by line.
