Ch 12 Worksheet
1. How would the item code normally be input into the system?
A barcode is read using a scanner.
2. Give two reasons why an item accepted signal is used in this situation rather than an item
rejected signals
I.
II.
Need to know that item has been accepted.
Items could be missed if the rejected signal were used.
3. These are the fields in the stock file:
a. Item Code
b. Type
c. Description
d. Size
e. Quantity in stock
f. Minimum stock level
g. Reorder quantity
h. Supplier code
Which field in a stock record would be changed when an item is sold?
Quantity in stock
4. The stock file is also used by an automatic reordering system. This produces orders like
the one shown above. Another file called the supplier file is used. Five three fields the
supplier record will have to contain to allow the order to be produced.
Any three from: supplier code (the primary key field); supplier name; fax number; address.
5. The transaction log file is kept on tape.
a. What data would be written to the transaction log file?
b. What is the purpose of this file?
(a) Item code
(b) To provide a backup to the master file should it become damaged.
1. You can play a recording or live sound into the __________________ of your computer.
CSV
Sound Card
Buffer
2. One common file format is __________________
CSV
Polling
Buffer
3. A______________ is a temporary storage space.
Interrupt
Polling
Buffer
4. Another type of system is used, called a ___________________ system
Interrupt
Polling
Digital
5. Most people use ___________ computer
Word Processors
Data
Digital
6. ___________________ can either be analogue or digital
Word Processors
Data
System
7. The most common file type of file transfer is between different ______________.
Word Processors
Data
System
8. An __________________ is a signal to the processor from the peripheral device.
Interrupt
Data
Digital