Computer Architecture Quiz

Multiple Choice Questions

• Superscalar computing was first introduced in the Pentium Pro processor.
• The highest priority external interrupt is TRAP.
• The unbiased exponent in binary for the hexadecimal floating-point number C0600000H is 0111 1111.
• The decimal equivalent of the hexadecimal floating-point number 41DD0000H is +19.125.
• Robert Noyce and Jack Kilby are credited with the invention of Integrated Circuits (ICs).
• Given initial flag statuses (OF=0; IF=1; ZF=0; AF=0; PF=? and CF=0), and AL=FF, BL=01, the instructions ADD AL, BL; CLC; CLI result in OF=1; IF=0; ZF=0; AF=1; PF=0; CF=0.
• Schickard's Machine is one early calculating machine that did not use gears as a major component.
• The biased exponent in binary for the decimal -0.09375, expressed as a single-precision floating-point number, is 0111 1011.
• The normalized form of the binary value for the hexadecimal floating-point number 3F800000H is 1.0x2^0.
• The world's first 8-bit microprocessor is the 8008.

Additional Questions

• A word-sized register that is not a word-sized register is EIP (instruction pointer).
• The hexadecimal equivalent of -0.09375 in single-precision floating-point is C2370000H.
• The company that originated the project for the first microprocessor in 1969 was BUSICOM.
• The biased exponent in binary for the decimal +45.75, expressed as a single-precision floating-point number, is 1000 0100.
• The biased exponent in binary for the hexadecimal floating-point number C0600000H is 0111 1111.
• The normalized form of the binary equivalent for the decimal +45.75 in single-precision floating-point is 1.0110111x2^5.
• The 80286 microprocessor usually has a 16-bit wide address bus.
• The hexadecimal equivalent of 3F800000H is 0111 1111.
• Addressing memory located at 00100H in little-endian format for the double word 12345678H results in 00101H containing 34.
• The first chip developed by Intel was the Intel 3101.
• The first microprocessor was the Intel 4004.
• The biased exponent in decimal for the hexadecimal floating-point number C1990000H is 131.
• The initial flag statuses (OF=0; ZF=1; AF=0; PF=1 and CF=0), and AL=1F, BL=F1, and the instruction ADD AL, BL result in OF=1;ZF=0;AF=1; PF=1;CF=1.

Additional Topics

• Napier's bones, a slide rule, an abacus, and Hollerith's machine are examples of mechanical calculating devices.
• The hexadecimal equivalent to -19.125 in Single-precision floating-point format is C1990000H.
• Interrupts signify attention requests or special tasks.
• Decimal equivalent for hexadecimal floating-point C0600000H is -3.5.
• Intel CPUs are also known as little-endian computers.
• Motorola processors are generally big-endian.
• Embedded computing began in the 3rd generation of computers.
• Busicom's initial design for the Intel 4004 calculator had seven chips.
• The 32-bit addressing modes use a register width of 32 bits.
• In little-endian format, the double word 12345678H, stored at memory location 00100H, results in 00103H containing 56.

BCD Conversion

• The decimal value 78, when unpacked into BCD, is stored in memory as 08 07.
• The decimal value 543, when unpacked into BCD, is stored as 03 04 05.
• The decimal value 3437 is stored in memory as 37 34 as Packed BCD.
• The decimal value 4503 in memory as Packed BCD is 03 45.