I have a Computing 1 test on Tuesday

I would like help with the past paper I am working on this question

: a) In an 8-bit binary system give the value of -88 in the following:

i. 2s complement representation

ii. Sign-magnitude representation

iii. 1s complement representation

b) Give a brief description of the OpCode field as it relates to the collection of bits in an instruction of machine code.

c)Pick the odd one out.

a. array type

b. char type

c. bool type

d. int type