Question

2) MAGNETIC TAPE AND MAGNETIC DISK

Magnetic tape – it is one of the principal input/output recording media used with computers and is mainly used for storing intermediate results of computations and for compact storing of large amounts of data, in an ordered sequence. It is much cheaper to store information on tape than in the computer main memory or on a disk memory device, but it takes longer to locate a particular data item if it is stored on tape: data must be stored and accessed sequentially.

Magnetic disk – it consists of a series of concentric paths or tracks each capable of storing data in magnetically coded form. It looks like a phonograph record and a series of disks is mounted on a vertical shaft. One or more access arms move into the disk to read or write the data stored on it. Disks may be hard (made out of aluminum) or floppy (made out of plastic). Disks may be permanently attached to the drive unit or they may be made up as removable disk packs. Disks may be made even more efficient by using laser beam to read and write data.



3) Indique a ordem em que essas idéias ocorrem no texto: Magnetic Disk

( ) disks may be hard or floppy.
( ) disks may be more efficient.
(1 ) disks consists of a series of concentric paths.
( ) disks may be made up as removable disk packs.
( ) disks may be mounted on a vertical shaft.
( ) disks may be permanently attached to the drive unit.

4) Indique se as afirmações são verdadeiras (V) ou falsas (F):

a) Magnetic tape is the only way for inputting data. ( )
b) It is used for storing data sequentially. ( )
c) It is much cheaper to store data on disks. ( )
d) It takes longer to locate data stored on tapes. ( )
e) Data on tape is stored in an ordered sequence. ( )

5) Indique os dois erros do Presente Simples com círculos e dê as formas verbais corretas:

“Some mail systems uses a large disk space, but they doesn´t determine any amount before its use.”

Formas corretas: a) _________________
b) ___________________


6) Observe o segmento abaixo:

“Magnetic Tape is mainly used for storing(1) intermediate results of computations and for compact storing(2) of large amounts of data.”

A palavra storing (1) significa: A palavra storing (2) significa:

a) armazenar a) armazenar
b) armazenando b) armazenando
c) armazenamento c) armazenamento
d) armazenado d) armazenado

Answer 1

3) 
(3) disks may be hard or floppy.
(6) disks may be more efficient.
(1) disks consists of a series of concentric paths.
(5) disks may be made up as removable disk packs.
(2) disks may be mounted on a vertical shaft.
(4) disks may be permanently attached to the drive unit.

4)
a) F
b) V
c) F
d) V
e) V

Some mail systems >uses< a large disk space, but they >doesn´t<determine any amount before its use
a) some mail systems use
b) but they don't

6) a