Binary conversion of 144.5:
$144 = 10010000_2$
$0.5 \times 2 = 1.0 \Rightarrow 0.1_2$
Thus, $(144.5)_{10} = (10010000.10)_2$

The octal number system uses 8 digits in total, from 0 to 7.

The process of preparing records or addresses in a data file is called Data Creation.

Explanation: To convert $(1101010.01)_2$ to octal, we group the binary digits in sets of 3:

Therefore, $(152.2)_8$

$195 = 128 + 64 + 2 + 1 = 11000011_2$. $0.5 = 0.1_2$ (or $0.10_2$).

The base of the Octal number system is 8 ($2^3$), so one digit of it can be represented by 3 binary digits.

A group of 8 bits is called a 'Byte'.

Explanation: A computer virus is a malicious software.

The binary of decimal 3 is $0011_2$. Its Gray code will be $0010_2$.

1 Gigabyte (GB) = 1024 Megabytes (MB).

The duration of one bit in a digital signal is called 'Bit Interval'.

1 Kilobyte (KB) = 1024 Bytes. Since 1 Byte = 8 bits, therefore 1 Kilobyte = $1024 \times 8 = 8192$ bits.

The base of the octal system is 8, so it requires fewer digits to represent a number compared to the binary system (base 2).

The 2's complement of 00000000 is 00000000.

The full form of BCD is Binary Coded Decimal.

A Meta File is one that keeps details of other files or data about data.

In personal computers, historically word length was measured in reference to 4 bits, although in modern computers it is 32 or 64 bits.

$1111_2 = 1 \times 2^3 + 1 \times 2^2 + 1 \times 2^1 + 1 \times 2^0 = 8+4+2+1 = 15$.

Computer processor speed is measured in MIPS. The full form of MIPS is Million Instructions per Second.

$(101010)_2 = 1 \times 2^5 + 0 \times 2^4 + 1 \times 2^3 + 0 \times 2^2 + 1 \times 2^1 + 0 \times 2^0 = 32 + 0 + 8 + 0 + 2 + 0 = 42$.
$(0.011)_2 = 0 \times 2^{-1} + 1 \times 2^{-2} + 1 \times 2^{-3} = 0 + 0.25 + 0.125 = 0.375$.
Total = 42.375