1 1. Describe some ways that information technology can
be used to help people find jobs and to help jobs find
people.
5. What is an embedded
system?
11.Many web documents are “linked.” What does that
mean?
8.The floppy drive no longer comes as a standard component
of microcomputers. What do you think will be the
next “legacy” device to be abandoned?
7. What is a font?
11. Karena dengan computer kita bisa
mengerjakan banyak hal. Computer juga
bisa membuat kita nyaman saat bekerja
Dan membantu setiap pekerjaan
dengan sangat mudah.
7. The chatter of impact printers or hum of
fans in computer power units
can
be psychologically stressful to many people. Sound-muffling covers are
available
for impact printers. Some system units may be placed on the floor
under the desk to minimize noise from fans.
8 .Floppy drive
image being
scanned is placed on a glass surface, where it
remains stationary, and the scanning beam moves
across it.
Three other types of scanners are sheet-fed, handheld, and
drum. Why it’s important: Flatbed scanners are one
of the
most popular types of
scanner.
11. linked. In
relational databases a key —also called
key field, sort key, index, or keyword
—is a field used to sort data. For
example,
if you sort records by age, then the age field is a key. The most frequent
key
field used in the United States is the Social Security number, but
any
unique identifier, such as employee number or student number, can be
used.
Most database management systems allow you to have more than one
key
so that you can sort records in different ways. One of the keys is designated
the
primary key and
must hold a unique value for each record. A key
field
that identifies records in different tables is called a foreign key. Foreign
keys are used to cross-reference data among relational tables
5. In relational databases a key —also
called
key field, sort key, index, or keyword
—is a field used to sort data. For
example,
if you sort records by age, then the age field is a key. The most frequent
key
field used in the United States is the Social Security number, but
any
unique identifier, such as employee number or student number, can be
used.
Most database management systems allow you to have more than one
key
so that you can sort records in different ways. One of the keys is designated
Tidak ada komentar:
Posting Komentar