1964_IMPORT_AND_EXPORT_(STRATEGIC_COMMODITIES)_REGULATIONS — Page 109

1988 Ed.]

Import and Export (Strategic Commodities) Regulations

[CAP. 60 G 109

[Subsidiary]

"data signalling rate”-

The rate as defined in ITU Recommendation 53-36, taking into account that, for non-binary modulation, baud and bit per second are not equal. Binary digits for coding, checking, and synchronization functions are included.

N.B.

It is the maximum one-way rate, i.e. the maximum rate in either transmission or reception.

"digital computer"

Equipment which can, in the form of one or more discrete variables:

(a) Accept data;

(b) Store data or instructions in fixed or alterable (writable) storage devices;

(c) Process data by means of a stored sequence of instructions which is modifiable; and

(d) Provide output of data.

N.B.

Modifications of a stored sequence of instructions include replacement of fixed storage devices, but not a physical change in wiring or interconnections. "embedded" in equipment or systems-

Can feasibly be neither:

(a) Removed from such equipment or systems; nor

(b) Used for other purposes.

"equivalent multiply rate

The maximally achievable number of multiplication operations which can be performed per second considering that, in the case of simultaneous multiplication operations, all multiplication rates have to be summed in order to arrive at the "equivalent multiply rate":

(a) Assuming

(1) Optimal operand locations in the "most immediate storage”; and

(2) Operand lengths at least 16 bit, or more if this allows for faster operation;

and

(b) Neglecting

N.B.

(1) Set-up operations;

(2) Pipeline filling operations;

(3) Initialization;

(4) Interrupts; and

(5) Data reordering times.

Simultaneous multiplication operations can occur because of:

(a) Multiple arithmetic units for operations such as complex multiplication, convolution or recursive filtering

(b) Parallel pipelining;

(c) More than one arithmetic unit in one data processing unit; or

(d) More than one data processing unit in one system.

"fault tolerance”-

The capability to perform correctly without human intervention after failure of any ‘assembly', so that there is no single point in the system the failure of which could cause catastrophic failure of the system's functioning.

'assembly'-

A number of components (i.e. circuit elements, discrete components, microcircuits) connected together to perform a specific function or functions, replaceable as an entity and normally capable of being disassembled.