6-61. During a restore operation of zeros in a three-wire
core, the absence of write current on which of the
following lines will leave the cores in the zero
3. X drive
4. Y drive
6-62. What specific number of paired film spots is used
for each bit position?
6-63. Current flow through which of the following lines
will magnetize a film spot?
2. Word only
3. Sense/digit only
4. Word or sense/digit, depending on the
6-64. In the application of external fields, the
longitudinal fields are produced by passing the
current (a) in which of the following ways and the
transverse fields are produced by passing the
current (b) in which of the following ways?
1. (a) Down the word line
(b) In the proper direction along the
2. (a) In the proper direction along the word
l i n e
(b) Down the sense/digit line
3. (a) In the proper direction along the
(b) Down the word line
4. (a) In the proper direction along the
(b) Down the drive line
6-65. In a film memory, a packet stores what specific
number of bits of data?
6-66. Which, if any, of the following devices makes the
mated film cells less susceptible to the disturbance
from other cells in close proximity to them?
1. Ground plane
4. None of the above
6-67. How is mated film memory structured?
1. Bit organized
2. Stack organized
3. Word organized
4. Array organized
6-68. What item is the basic building block of the film
6-69. The memory capacity of a film core storage
device is determined by which of the following
1. Size of the computer
2. Number of packets only
3. Size of the array in the memory stack only
4. Number of packets and the size of the array in
the memory stack
6-70. In film storage, up to how many words can be
selected at each memory location?