Interfacing the CPU to the Mem
Data Representation
Test on Overview of Computers
1.
Computers are digital systems.
True
False
2.
devices are needed to enter data into the computer.
3.
In a memory write operation, data is
in the memory.
4.
Fetching a piece of data from the memory is called a
operation.
5.
The difference between a ROM and a RAM is that information in the ROM cannot be accessed in any order as with the RAM.
True
False
6.
Cache is the fastest type of memory device used in computers.
True
False
7.
Modern computers have large number of registers organized into one-dimensional arrays called register
.
8.
Registers used in computers have the highest memory capacity.
True
False
9.
The machine language of a computer uses natural text to express instructions to the computer.
True
False
10.
A computer instruction set is basically its machine language.
True
False
11.
A HLL program will correspond to a machine language program with exactly the same number of instructions.
True
False
12.
A HLL program written for one platform cannot run on a different platform.
True
False
13.
A
is used to translate HLL programs to machine language.
14.
Mapping between assembly language programs and machine language is one-to-many.
True
False
15.
The computer breaks down machine instructions into smaller operations that are called
.
16.
The Opcode field of a machine language instruction specifies the specific operation to be performed by the computer.
True
False
17.
The
unit coordinates the operation of different units in the computer.
18.
A computer's data path is made of:
RAM and and ALU
Input/Output Devices
Registers and ALU
19.
The data path and control unit are called the
.
20.
The address of the instruction to be fetched is stored in a register called Instruction Register.
True
False
21.
A one-bus architecture is more difficult to design than a two-bus-architecture, but achieves higher speed.
True
False
22.
The CPU's word size is usually referred to as the width of the data path.
True
False
23.
The CPU's address bus transfers the contents of the MDR register to the memory.
True
False
24.
The 8086 had a 20-bit address bus.
True
False
25.
The Pentium series processors have 32-bit address bus, which means that they can address a memory of size up to:
1M words
1G words
4G words
16M words