<span>With the use of a database application people can store and retrieve large quantities of data almost instantaneously. Database applications can also be used to present the information in easy to read and understand forms. Database applications serve as an intermediary between the raw data and a user, making it easier to sort and use the data.</span>
Answer:
Check the explanation
Explanation:
Pseudocode For Reading File:
start
Declarations
InputFIle records.txt
OutputFile result.txt
string authorName
string title
int numOfVol
open InputFile
open OutputFile
input authorName, title, numOfVol from records.txt
while not eof
output authorName
output title
output numOfVol
end while
close records.txt
close results.txt
END
The flowchart for reading the file can be seen below.
Answer:
1. Processor communication -- this involves the following tasks:
<em>a. exchange of data between processor and I/O module</em>
<em>b. command decoding - I/O module accepts commands sent from the processor. E.g., the I/O module for a disk drive may accept the following commands from the processor: READ SECTOR, WRITE SECTOR, SEEK track, etc. </em>
<em>c. status reporting – The device must be able to report its status to the processor, e.g., disk drive busy, ready etc. Status reporting may also involve reporting various errors. </em>
<em>d. Address recognition – Each I/O device has a unique address and the I/O module must recognize this address. </em>
<em />
2. Device communication – The I/O module must be able to perform device communication such as status reporting.
3. Control & timing – The I/O module must be able to co-ordinate the flow of data between the internal resources (such as processor, memory) and external devices.
4. Data buffering – This is necessary as there is a speed mismatch between speed of data transfer between processor and memory and external devices. Data coming from the main memory are sent to an I/O module in a rapid burst. The data is buffered in the I/O module and then sent to the peripheral device at its rate.
5. Error detection – The I/O module must also be able to detect errors and report them to the processor. These errors may be mechanical errors (such as paper jam in a printer), or changes in the bit pattern of transmitted data. A common way of detecting such errors is by using parity bits.
in the Design section you can format your selected Chart
The nursing usually takes up to 18 months, i.e. one year and a half.
The baby dolphin may however remain with his mum for up to 3-6 years.
